Athlon II X2 240e and Athlon II X3 435 CPU Review

Main Specs

Architecture-wise the main difference between the CPUs from AMD and their Intel counterparts is the presence of an integrated memory controller that supports both DDR2 and DDR3 memories on AMD processors. Memory support on Pentium and Celeron CPUs depends on the chipset. Since Intel G45 chipset only supports DDR2 up to 800 MHz, we used the same DDR2-800 modules with all CPUs, this way the memory modules wouldn’t bias the results.

All CPUs included don’t support the SSE4 instruction set. AMD CPUs have AMD’s own implementation of SSE4 called “SSE4a,” which has only four instructions and is not the same thing as SSE4 (which has a total of 54 instructions, 47 on SSE4.1 and seven on SSE4.2).

In the table below there is a column called “external bus.” For the AMD CPUs this means the speed of the HyperTransport bus, which on the reviewed CPUs works at 2,000 MHz, which translates in a maximum theoretical transfer rate of 8,000 MB/s (2,000 MHz x 16 bits x 2 data per clock cycle / 8). On Intel CPUs the external bus is called front side bus (FSB) and depending on the CPU can work at 200 MHz or at 266.6 MHz transferring four 64-bit data per clock cycle. Because of that, this bus is also referred as “800 MHz” (4x 200 MHz) or “1,066 MHz” (4x 266.6 MHz). This is equivalent of a maximum theoretical transfer rate of 6,400 MB/s (200 MHz x 64 bits x 4 data per clock cycle / 8) or 8,533 MB/s (266.6 MHz x 64 bits x 4 data per clock cycle / 8), respectively.

You may have noticed the letter “e” on the new Athlon II X2 CPU. This letter indicates that this CPU is a low-wattage model, dissipating only 45 W.

CPU Cores Internal Clock External Bus Core Tech. TDP Socket SSE4 Price
Athlon II X2 240e 2 2.8 GHz 8 GB/s Regor 45 nm 45 W AM3 SSE4a USD 77
Athlon II X3 435 3 2.9 GHz 8 GB/s Rana 45 nm 95 W AM3 SSE4a USD 87
Athlon II X4 620 4 2.6 GHz 8 GB/s Propus 45 nm 95 W AM3 SSE4a USD 100
Celeron E3200 2 2.4 GHz 6.4 GB/s Wolfdale 45 nm 65 W 775 No USD 53
Pentium E5200 2 2.5 GHz 6.4 GB/s Wolfdale 45 nm 65 W 775 No USD 68
Pentium E6300 2 2.8 GHz 8.5 GB/s Wolfdale 45 nm 65 W 775 No USD 86

TDP stands for Thermal Design Power which advises the user of the maximum amount of heat the CPU can dissipate. The CPU cooler must be capable of dissipating at least this amount of heat.

The prices listed were researched at Newegg.com on the day we published this review (the prices for Athlon II X2 240e and Athlon II X3 435 are the suggested prices set by AMD, since we got the CPUs before they were launched).

CPU L1 Cache L2 Cache L3 Cache
Athlon II X2 240e 64 KB + 64 KB per core 512 KB per core No
Athlon II X3 435 64 KB + 64 KB per core 512 KB per core No
Athlon II X4 620 64 KB + 64 KB per core 512 KB per core No
Celeron E3200 32 KB + 32 KB per core 1 MB total No
Pentium E5200 32 KB + 32 KB per core 2 MB total No
Pentium E6300 32 KB + 32 KB per core 2 MB total No

Now that you know the contenders, let’s see how they performed.

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Author: Gabriel Torres

Gabriel Torres is a Brazilian best-selling ICT expert, with 24 books published. He started his online career in 1996, when he launched Clube do Hardware, which is one of the oldest and largest websites about technology in Brazil. He created Hardware Secrets in 1999 to expand his knowledge outside his home country.

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