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Intel Quad-Core Core 2 Extreme QX6700 Performance Preview
Author: Gabriel Torres 95,096 views
Type: First Look Last Updated: September 28, 2006
Page: 3 of 4

You can see the performance results in the table below. Keep in mind that Core 2 Extreme X6800 runs at a higher clock rate (2.93 GHz) than Core 2 QX6700 (2,66 GHz). For DivX, Sony Vegas and 3ds Max the results are given in seconds, so the lower the better.

ProgramCore 2 Extreme X6800Core 2 Extreme QX6700Difference
Divx 6.2.5 with XMPEG 5.03 (seconds)1067727.35%
Sony Vegas 7.0a Build 115 (seconds)38225333.77%
3ds Max 8 SP2 (seconds)804938.75%
POV-Ray Beta 151428259481.65%
PCMark05 Professional 1.1.0 (Overall)76897575-1.48%
PCMark05 Professional 1.1.0 (CPU)7425849214.37%
3DMark06 Professional 1.0.2 (Overall)828189107.60%
3DMark06 Professional 1.0.2 (CPU)2508398158.73%

On the chart below you can see the performance difference between the two CPUs in percent. The chart indicates by how much Core 2 Extreme QX6700 is faster than Core 2 Extreme X6800.

Core 2 Extreme QX6700

As you can see the CPUs achieved similar performance on PCMark05 overall test suit. On 3DMark06 the performance difference between the two CPUs wasn’t big (7.60%), which does not surprise us at all, since 3D performance nowadays depends a lot on the video card being used. Also, keep in mind that the two CPUs run at different clock rates, Core 2 Extreme QX6700 running at 2.66 GHz while Core 2 Extreme X6800 runs at 2.93 GHz.

The performance difference on the 3DMark06 CPU test was impressive (60%), however this specific CPU performance increase does not necessarily translates into a higher 3D performance – as we mentioned, 3D performance measured by this program increased only 7.60%.

The real difference between the two CPUs is seen on programs that take advantage of symmetric multiprocessing, especially rendering. On 3ds Max the performance difference was over 60% and on POV-Ray we could see a stunning 80% performance increase. Video editing will also benefit a lot of quad-core CPUs, as Core 2 Extreme QX6700 was 50% faster than Core 2 Extreme X6800 here. Even MPEG decoding will be benefited by quad-core technology, as you can see.

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