Introduction
Patriot was established in 2000 as a PDP Systems spin-off – PDP Systems is one of the oldest memory manufacturers in the world and very active in the OEM business – is getting a lot of attention in the enthusiast market with the excellent cost/benefit ratio of their products. We’ve got their PDC2G3500LLK memory kit, which comes with two 216.5 MHz/DDR433 1 GB modules with 2-3-2-5 timings. The main feature of these modules is their very low latency for such a high capacity product. Let’s see how this kit performs on our tests.
To know Patriot manufacturing facility from inside, read our article Patriot Memory Factory Tour in Fremont, CA, USA.
click to enlarge
Figure 1: Patriot PDC2G3500LLK memory kit.
The module design looks very simple yet with a very good taste. The modules use aluminum heatspreaders painted in red, which are attached to the modules through a thermal tape.
click to enlarge
Figure 2: Label detail.
We could remove the heatspreader and could see that the memory modules use Infineon CE-5 chips and have their printed circuit board (PCB) projected by BrainPower.
click to enlarge
Figure 3: Chip detail.
Infineon CE-5 chips can achieve up to 300 MHz with stability, but beyond 270 MHz the system wasn’t stable for 3D applications, as the textures were being corrupted.
Before going to our benchmarks, let’s take a look at the main technical features of the reviewed modules.
Main Specifications
Dual channel Patriot PDC2G3500LLK memory kit main features are:
- Rating: DDR433/PC3500.
- Capacity: 2 x 1,024 MB.
- Type: Non-ECC, Unregistered and Unbuffered.
- Recommended voltage: 2,6 V.
- Programmed timings:
| Clock (MHz) |
216,5 |
| CAS Latency Control (TCL) |
2 |
| RAS# to CAS# delay (TRCD) |
3 |
| RAS# Precharge (TRP) |
2 |
| RAS# Active Time (TRAS) |
5 |
- Extra Features: Low latencies, dual channel-optimized and lifetime warranty.
- More information: http://www.patriotmem.com.
- Average price in the US*: USD 265.00.
How We Tested
All memory modules were tested under dual channel configuration (2x 1,024 MB). Since the goal of our review is to measure the memory performance, all benchmarks were conducted with the CPU as close as possible from its original clock speed of 2.2 GHz (Athlon 64 3500+). This insured that the results from our benchmarks were influenced only by the memory clock and by the memory latency.
We ran our benchmarks using the configurations listed below, always configuring the memories with the lower supported latencies with stability.
|
CPU Clock |
Memory Clock(DDR) |
|
200 x 11 = 2.200 MHz |
200 MHz (DDR400) |
|
220 x 10 = 2.200 MHz |
220 MHz (DDR440) |
|
245 x 9 = 2.205 MHz |
245 MHz (DDR490) |
|
275 x 8 = 2.200 MHz |
275 MHz (DDR 550) |
If the memory was able to go beyond 275 MHz we controlled the CPU multiplier in order to keep its internal clock as close as possible from its original 2.2 GHz.
During our benchmarking sessions, we used the configuration listed below. Between our benchmarking sessions the only variable device were the memory modules being tested.
Hardware Configuration
- Motherboard: DFI LANParty UT nF4 SLI-D (nForce4 SLI).
- BIOS version: B14 – November 14th, 2005.
- PCB revision: A00.
- CPU: Athlon 64 3500+ (2.2 GHz) with 512 KB L2 memory cache and Venice core.
- Cooler: In-a-Box.
- Hard Disk Drive: Samsung SpinPoint SP0411N (7,200 rpm, 40 GB, ATA-133).
- Video Card: NVIDIA Geforce 6800 GT 256 MB PCI Express.
- Video Resolution: 1024x768x32@72Hz.
- Power Supply: Seventeam ST420BKV-03F.
Software Configuration
- Windows XP Professional, installed on NTFS.
- Service Pack 2.
- Direct X 9.0c.
Driver Versions
- NVIDIA video driver version: 81.98 WHQL.
- NVIDIA nForce driver version: 6.70 WHQL.
Used Software
We adopted a 3% error margin; thus, differences below 3% cannot be considered relevant. In other words, products with a performance difference below 3% should be considered as having similar performance.
Benchmarking at 200 MHz/DDR400
We used four programs to measure the performance of the memory modules: Sandra Lite, 3DMark2001 SE, Quake III and Super Pi Mod 1.4.
The following memory modules were selected to be compared with Patriot PDC2G3500LLK 2 GB Dual Channel kit, all containing two 1 GB modules each:
- OCZ EL DDR PC-4000 Gold GX XTC
- Corsair TWINX2048-3500LLPRO
We separated our tests according to the memory clock we configured. Let’s see the results achieved by the reviewed modules running at 200 MHz/DDR400, i.e., at the system default configuration.
Sandra Lite 2005.SR3 10.69
We used the Memory Bandwidth Benchmark module from Sandra to measure the maximum transfer rate that the memory was able to achieve. The result published is an arithmetic average from the Buffered Integer Stream and Buffered Float Stream results.
You can check the results on the graph below.
|
Memories – 200MHz/DDR400 1T |
Sandra - Int and Float Average |
% |
| Corsair TWINX2048-3500LLPRO (2-3-2-5) – 2.6 V |
5773 |
+0.73 |
| Patriot PDC2G3500LLK (2-3-2-5) – 2.6 V |
5731 |
|
| OCZ EL DDR PC-4000 Gold GX XTC (2.5-3-3-7) – 2.6 V |
5698 |
-0.58 |
Even though it has a lower latency Patriot PDC2G3500LLK achieved a performance similar to the other memory modules we tested.
3DMark2001 SE Build 3.3.0
3DMark2001 SE simulates older games based on DirectX 8.1 and it is very sensitive to changes in the hardware configuration of the system.
You can check the results on the graph below.
|
Memories – 200MHz/DDR400 1T |
3DMark2001 SE (Build 3.3.0) |
% |
| Corsair TWINX2048-3500LLPRO (2-3-2-5) – 2.6 V |
22690 |
+0.06 |
| Patriot PDC2G3500LLK (2-3-2-5) – 2.6 V |
22676 |
|
| OCZ EL DDR PC-4000 Gold GX XTC (2.5-3-3-7) – 2.6 V |
22408 |
-1.20 |
At 3DMark2001 SE all tested memories achieved the same performance level.
Quake III Arena 1.32
Even though this is an old game its importance comes from the fact its engine is used by several other games, like Jedi Knight II and Medal of Honor, and also because this game is very sensitive to any changes on the hardware configuration.
We used the demo four available on version 1.32 of Quake III to make our benchmarking with this game. We ran this demo three times at 1024x768x32 resolution and all image quality settings on their default configuration and we picked the middle value for our comparisons, i.e., we discarded the highest and the lowest values.
Check the results below.
|
Memories – 200MHz/DDR400 1T |
Quake III Arena - FPS |
% |
| Patriot PDC2G3500LLK (2-3-2-5) – 2.6 V |
456 |
|
| Corsair TWINX2048-3500LLPRO (2-3-2-5) – 2.6 V |
453.6 |
-0.53 |
| OCZ EL DDR PC-4000 Gold GX XTC (2.5-3-3-7) – 2.6 V |
444.4 |
-2.61 |
Patriot’s kit achieved a performance similar to Corsair’s. which is also based on Infineon chips, and was 2.61% faster than OCZ’s, which, according to our methodology, means that they have a similar performance, since the performance difference was below 3%.
Super Pi Mod 1.4
Super Pi is a benchmarking software created at Tokyo University which measures the time spent to calculate Pi up to 32 million decimal places. In our tests we calculated Pi with 1 million decimal places.
Check the results below.
|
Memories – 200MHz/DDR400 1T |
Super Pi Mod 1.4 |
% |
| Corsair TWINX2048-3500LLPRO (2-3-2-5) – 2.6 V |
38.640 |
-0.28 |
| Patriot PDC2G3500LLK (2-3-2-5) – 2.6 V |
38.750 |
|
| OCZ EL DDR PC-4000 Gold GX XTC (2.5-3-3-7) – 2.6 V |
39.172 |
+1.08 |
On Super Pi the lower the result. the better, since it means seconds. Patriot’s kit achieved a performance similar to Corsair’s and was 1.08% faster than OCZ’s, which, according to our methodology, means that they have a similar performance, since the performance difference was below 3%.
Benchmarking at 220 MHz/DDR440
We lowered the clock multiplier of our Athlon 64 3500+ (2.2 GHz) from 11x to 10x and increased its memory bus from 200 MHz to 220 MHz, making the memories to run at DDR440 keeping the CPU running internally at 2.2 GHz. Let’s see how the reviewed kit performed under this configuration.
Sandra Lite 2005.SR3 10.69
We used the Memory Bandwidth Benchmark module from Sandra to measure the maximum transfer rate that the memory was able to achieve. The result published is an arithmetic average from the Buffered Integer Stream and Buffered Float Stream results.
You can check the results on the graph below.
|
Memories – 220MHz/DDR440 1T |
Sandra - Int and Float Average |
% |
| OCZ EL DDR PC-4000 Gold GX XTC (2.5-3-3-7) – 2.6 V |
5899 |
+0.08 |
| Corsair TWINX2048-3500LLPRO (2-3-2-5) – 2.6 V |
5894 |
0 |
| Patriot PDC2G3500LLK (2-3-2-5) – 2.6 V |
5894 |
|
On this test all memories achieved the same performance level.
3DMark2001 SE Build 3.3.0
3DMark2001 SE simulates older games based on DirectX 8.1 and it is very sensitive to changes in the hardware configuration of the system.
You can check the results on the graph below.
|
Memories – 220MHz/DDR440 1T |
3DMark2001 SE (Build 3.3.0) |
% |
| Corsair TWINX2048-3500LLPRO (2-3-2-5) – 2.6 V |
22922 |
+0.24 |
| Patriot PDC2G3500LLK (2-3-2-5) – 2.6 V |
22866 |
|
| OCZ EL DDR PC-4000 Gold GX XTC (2.5-3-3-7) – 2.6 V |
22622 |
-1,08 |
On 3DMark2001 SE all tested memories also have achieved the same performance level.
Quake III Arena 1.32
Even though this is an old game its importance comes from the fact its engine is used by several other games, like Jedi Knight II and Medal of Honor, and also because this game is very sensitive to any changes on the hardware configuration.
We used the demo four available on version 1.32 of Quake III to make our benchmarking with this game. We ran this demo three times at 1024x768x32 resolution and all image quality settings on their default configuration and we picked the middle value for our comparisons, i.e., we discarded the highest and the lowest values.
Check the results below.
|
Memories – 220MHz/DDR440 1T |
Quake III Arena - FPS |
% |
| Patriot PDC2G3500LLK (2-3-2-5) – 2.6 V |
465.3 |
|
| Corsair TWINX2048-3500LLPRO (2-3-2-5) – 2.6 V |
462.6 |
-0.58 |
| OCZ EL DDR PC-4000 Gold GX XTC (2.5-3-3-7) – 2,6 V |
452.6 |
-2.81 |
Patriot’s kit achieved a performance similar to Corsair’s and was 2.81% faster than OCZ’s, which, according to our methodology, means that they have a similar performance, since the performance difference was below 3%.
Super Pi Mod 1.4
Super Pi is a benchmarking software created at Tokyo University which measures the time spent to calculate Pi up to 32 million decimal places. In our tests we calculated Pi with 1 million decimal places.
Check the results below.
|
Memories – 220MHz/DDR440 1T |
Super Pi Mod 1.4 |
% |
| Corsair TWINX2048-3500LLPRO (2-3-2-5) – 2.6 V |
38.423 |
-0.04 |
| Patriot PDC2G3500LLK (2-3-2-5) – 2.6 V |
38.438 |
|
| OCZ EL DDR PC-4000 Gold GX XTC (2.5-3-3-7) – 2.6 V |
38.781 |
+0.88 |
On Super Pi the lower the result, the better, since it means seconds. Patriot PDC2G3500LLK achieved a performance similar to the other memory modules we tested.
Benchmarking at 245 MHz/DDR490
We lowered the clock multiplier of our Athlon 64 3500+ (2.2 GHz) from 11x to 9x and increased its memory bus from 200 MHz to 245 MHz, making the memories to run at DDR490 keeping the CPU running internally at 2.2 GHz. Let’s see how the reviewed kit performed under this configuration.
Sandra Lite 2005.SR3 10.69
We used the Memory Bandwidth Benchmark module from Sandra to measure the maximum transfer rate that the memory was able to achieve. The result published is an arithmetic average from the Buffered Integer Stream and Buffered Float Stream results.
You can check the results on the graph below.
|
Memories – 245MHz/DDR490 1T |
Sandra - Int and Float Average |
% |
| Patriot PDC2G3500LLK (2.5-3-2-5) – 2.7 V |
6202 |
|
| Corsair TWINX2048-3500LLPRO (2.5-3-2-5) – 2.7 V |
6190 |
-0.19 |
| OCZ EL DDR PC-4000 Gold GX XTC (3-4-3-7) – 2.7 V |
6131 |
-1.16 |
On this test all memories achieved the same performance level.
3DMark2001 SE Build 3.3.0
3DMark2001 SE simulates older games based on DirectX 8.1 and it is very sensitive to changes in the hardware configuration of the system.
You can check the results on the graph below.
|
Memories – 245MHz/DDR490 1T |
3DMark2001 SE (Build 3.3.0) |
% |
| Patriot PDC2G3500LLK (2.5-3-2-5) – 2.7 V |
23245 |
|
| Corsair TWINX2048-3500LLPRO (2.5-3-2-5) – 2.7 V |
23180 |
-0.28 |
| OCZ EL DDR PC-4000 Gold GX XTC (3-4-3-7) – 2.7 V |
22726 |
-2.28 |
Patriot’s kit achieved a performance similar to Corsair’s and was 2.28% faster than OCZ’s, which, according to our methodology, means that they have a similar performance, since the performance difference was below 3%.
Quake III Arena 1.32
Even though this is an old game its importance comes from the fact its engine is used by several other games, like Jedi Knight II and Medal of Honor, and also because this game is very sensitive to any changes on the hardware configuration.
We used the demo four available on version 1.32 of Quake III to make our benchmarking with this game. We ran this demo three times at 1024x768x32 resolution and all image quality settings on their default configuration and we picked the middle value for our comparisons, i.e., we discarded the highest and the lowest values.
Check the results below.
|
Memories – 245MHz/DDR490 1T |
Quake III Arena - FPS |
% |
| Patriot PDC2G3500LLK (2.5-3-2-5) – 2.7 V |
474.8 |
|
| Corsair TWINX2048-3500LLPRO (2.5-3-2-5) – 2.7 V |
474.4 |
-0.08 |
| OCZ EL DDR PC-4000 Gold GX XTC (3-4-3-7) – 2.7 V |
460.7 |
-3.06 |
Once again Patriot’s kit achieved a performance similar to Corsair’s and was 3.06% faster than OCZ’s.
Super Pi Mod 1.4
Super Pi is a benchmarking software created at Tokyo University which measures the time spent to calculate Pi up to 32 million decimal places. In our tests we calculated Pi with 1 million decimal places.
Check the results below.
|
Memories – 245MHz/DDR490 1T |
Super Pi Mod 1.4 |
% |
| Patriot PDC2G3500LLK (2.5-3-2-5) – 2.7 V |
37.860 |
|
| Corsair TWINX2048-3500LLPRO (2.5-3-2-5) – 2,7 V |
37.953 |
+0.25 |
| OCZ EL DDR PC-4000 Gold GX XTC (3-4-3-7) – 2.7 V |
38.609 |
+1.94 |
On Super Pi the lower the result, the better, since it means seconds. Patriot’s kit achieved a performance similar to Corsair’s and was 1.94% faster than OCZ’s, which, according to our methodology, means that they have a similar performance, since the performance difference was below 3%.
Benchmarking at The Maximum Clock Rate
We lowered the clock multiplier of our Athlon 64 3500+ (2.2 GHz) from 11x to 8x and increased its memory bus from 200 MHz to 275 MHz, making the memories to run at DDR550 keeping the CPU running internally at 2.2 GHz. The reviewed memory modules from OCZ were the only ones that worked under this configuration. So we included the results achieved under this configuration together with our maximum clock rate results.
The maximum clock rate test is exactly what it says: the higher clock rate we could achieve with the module being tested. On the results we included memory voltage, memory clock, CPU clock multiplier and CPU internal clock that were used to achieve the posted results.
Sandra Lite 2005.SR3 10.69
We used the Memory Bandwidth Benchmark module from Sandra to measure the maximum transfer rate that the memory was able to achieve. The result published is an arithmetic average from the Buffered Integer Stream and Buffered Float Stream results.
You can check the results on the graph below.
|
Memories - Maximum Clock Rate |
Sandra - média - Int e Float |
% |
| Patriot PDC2G3500LLK (3-4-3-7) - 2.8 V - 270 MHz x 9 - 2.43 GHz |
6734 |
|
| Corsair TWINX2048-3500LLPRO (3-4-3-8) - 2.8 V - 260 MHz x 9 - 2.34 GHz |
6281 |
-3.98 |
| OCZ EL DDR PC-4000 Gold GX XTC (3-4-4-8) - 2.8 V - 280 MHz x 8 - 2.24 GHz |
6281 |
-7.21 |
| OCZ EL DDR PC-4000 Gold GX XTC (3-4-3-8) - 2.8 V - 275 MHz x 8 - 2.2 GHz |
6160 |
-9.32 |
Since under this test the CPU clock varied according to the memory module being reviewed. it isn’t fair to make direct comparisons using the published results. Anyway. you can have an idea of the maximum clock rate you can achieve with each memory module included in our tests and also it is a good opportunity to see how a higher clock does not necessarily translates into a higher performance because of the latencies used.
Not taking the performance data into account, the reviewed memory modules from Patriot achieved a better overclocking capability than the modules from Corsair, which also use memory chips from Infineon.
3DMark2001 SE Build 3.3.0
3DMark2001 SE simulates older games based on DirectX 8.1 and it is very sensitive to changes in the hardware configuration of the system.
You can check the results on the graph below.
|
Memories - Maximum Clock Rate |
3DMark2001 SE (Build3.3.0) |
% |
| Corsair TWINX2048-3500LLPRO (3-4-3-8) - 2.8 V – 260 MHz x 9 - 2.34 GHz |
23390 |
+0.82 |
| OCZ EL DDR PC-4000 Gold GX XTC (3-4-4-8) - 2.8 V - 280 MHz x 8 - 2.24 GHz |
23209 |
+0.04 |
| Patriot PDC2G3500LLK (3-4-3-7) - 2.8 V - 270 MHz x 9 - 2.43 GHz |
23200 |
|
| OCZ EL DDR PC-4000 Gold GX XTC (3-4-3-8) - 2.8 V - 275 MHz x 8 - 2.2 GHz |
23077 |
-0.53 |
On 3DMark2001 SE all tested memories achieved the same performance level, even though different CPU clocks were used.
Quake III Arena 1.32
Even though this is an old game its importance comes from the fact its engine is used by several other games, like Jedi Knight II and Medal of Honor, and also because this game is very sensitive to any changes on the hardware configuration.
We used the demo four available on version 1.32 of Quake III to make our benchmarking with this game. We ran this demo three times at 1024x768x32 resolution and all image quality settings on their default configuration and we picked the middle value for our comparisons, i.e., we discarded the highest and the lowest values.
Check the results below.
|
Memories - Maximum Clock Rate |
Quake III Arena - FPS |
% |
| Patriot PDC2G3500LLK (3-4-3-7) - 2.8 V - 270 MHz x 9 – 2.43 GHz |
505.8 |
|
| Corsair TWINX2048-3500LLPRO (3-4-3-8) - 2.8 V - 260 MHz x 9 - 2.34 GHz |
483.1 |
-4.70 |
| OCZ EL DDR PC-4000 Gold GX XTC (3-4-4-8) - 2.8 V - 280 MHz x 8 - 2.24 GHz |
471.9 |
-7.18 |
| OCZ EL DDR PC-4000 Gold GX XTC (3-4-3-8) - 2.8 V - 275 MHz x 8 - 2.2 GHz |
467.8 |
-8.12 |
Since under this test the CPU clock varied according to the memory module being reviewed, it isn’t fair to make direct comparisons using the published results. Anyway, you can have an idea of the maximum clock rate you can achieve with each memory module included in our tests.
Super Pi Mod 1.4
Super Pi is a benchmarking software created at Tokyo University which measures the time spent to calculate Pi up to 32 million decimal places. In our tests we calculated Pi with 1 million decimal places.
Check the results below.
|
Memories - Maximum Clock Rate |
Super Pi Mod 1.4 |
% |
| Patriot PDC2G3500LLK (3-4-3-7) - 2.8 V - 270 MHz x 9 - 2.43 GHz |
35 |
|
| Corsair TWINX2048-3500LLPRO (3-4-3-8) - 2,8 V - 260 MHz x 9 - 2.34 GHz |
36.594 |
+4.70 |
| OCZ EL DDR PC-4000 Gold GX XTC (3-4-4-8) - 2.8 V - 280 MHz x 8 - 2.24 GHz |
37.672 |
+7.18 |
| OCZ EL DDR PC-4000 Gold GX XTC (3-4-3-8) - 2.8 V - 275 MHz x 8 - 2.2 GHz |
38.172 |
+8.12 |
Since under this test the CPU clock varied according to the memory module being reviewed. it isn’t fair to make direct comparisons using the published results. Anyway, you can have an idea of the maximum clock rate you can achieve with each memory module included in our tests and how the increase on the clock rate reflects on the system performance.
Conclusions
Patriot PDC2G3500LLK 2 GB dual channel memory kit has the lowest operating latencies for high-capacity memory modules we have reviewed so far.
With them we were able to run up to 250 MHz (DDR500) using 2.5-3-2-5 latencies, an excellent result. Increasing the memory latencies we were able to put this kit running at 270 MHz (DDR540), a clock almost 25% higher than the maximum clock rate labeled by the manufacturer (216.5 MHz/DDR433). Outstanding.
Even though it is new and less traditional on the market, Patriot proved to be an excellent manufacturer of aggressive memory modules targeted to the enthusiast market, comparable (or even better) than traditional manufacturers. To give you an idea, we were able to achieve better overclocking results with PDC2G3500LLK kit than with the competing kit from Corsair, TWINX2048-3500LLPRO, which is also based on Infineon chips (but from the BE-5 revision), where we could achieve up to 260 MHz, 10 MHz less than what we reached with Patriot’s product.
If you need a high amount of RAM with great overclocking capability and low latencies, PDC2G3500LLK kit from Patriot is a terrific option.
Originally at http://www.hardwaresecrets.com/article/Patriot-PDC2G3500LLK-2-GB-Dual-Channel-Memory-Kit-Review/331
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