Ivy Bridge i7-3820QM Performance
Earlier this week we presented some basic benchmark information for the upcoming i7-3610QM. Our source for that article had used a selection of laptops and Sandy Bridge processors to make the comparison, making it an unreliable indicator of the performance of Ivy Bridge. Today we present benchmark results for a Core i7-3820QM, compared to an i7-2960XM in the same laptop, carried out by Computerbase.
For this set of tests, Computerbase used Core i7-2960XM and a Core i7-3820QM, both with a base clock speed of 2.7 GHz and a Turbo Boost speed of 3.7 GHz. Other than the fact that Ivy Bridge is built on a 22nm process, and the integrated GPU has been upgraded to HD4000 graphics, the processor specs are identical, making this a good indicator of the performance of Ivy Bridge over Sandy Bridge. The GPU speed for the HD3000 in the Sandy Bridge sample is 650 MHz, with a Turbo speed of 1300 MHz. The HD4000 graphics in the Ivy Bridge sample has a base clock of 650 MHz and a Turbo clock of 1250 MHz. Both processors have quad-cores with HyperThreading.
The laptop used features the HM77 chipset, one of the newly released Panther Point chipsets which we will be writing an article on later this week. This uses a 988 pin socket which is compatible with Sandy Bridge processors, and has a TDP of 4.1 watts.
Testing the iGPU using 3DMark Vantage (Entry level preset), the HD4000 GPU in the new generation chip scored 19097 points. The HD3000 in the previous generation chip scored 11583 points. This shows a 65% performance boost for Ivy Bridge. When using a GTX 670M discrete GPU, the Ivy Bridge processor scored 39755 points, a 4% improvement over the 38070 scored by the Sandy Bridge chip. Moving back to the iGPU tests, the GPU score in the above results showed a performance gain of 79%, with scores of 17886 and 9987.
Using 3DMark Vantage performance preset, the overall score for i7-3820QM was 4431, 103% higher than i7-2960XM's 2179. The GPU score was 3483, 108% better than the older processor. Finally, using the OpenGL test in Cinebench 11.5, the HD4000 graphics scored 22.45, 32% better than the 16.98 scored by the HD3000 iGPU.
Looking at the CPU performance, using a few tests, we can see how the reduced production process helps the performance for a number of standard tests. In 3DMark Vantage (Entry level preset), Ivy Bridge has a 10% performance improvement over Sandy Bridge for the CPU score, and 9% in the physics score. In Cinebench 11.5, the single thread test showed a performance boost of 4%, and the multi-threaded test gave an improvement of 10%. The performance boost in the Truecrypt 7.0a - AES test was 4%. Finally, using x264 HD Benchmark 4.0, test 1 showed a boost of 13%, and test 2 showed a boost of 11%.
In conclusion, the Ivy Bridge processor outperforms the Sandy Bridge processor under test in every test (as one would expect with a new generation chip using a smaller manufacturing process). The average improvement in the CPU speed is approx 9%. For the integrated GPU, the performance benefit with Ivy Bridge varied between 32% and 108%, depending on what test was performed. Neither processor had a graphics score which is close to the performance that might be needed by many gamers, as shown by the 3DMark Vantage score using the GTX 570M. However, the improvement over the previous generation is enough to indicate that Intel are not standing still in that area, given the improvement of over 100% in some tests.
i7-3820QM is among the Ivy Bridge processors expected at the end of April.
Related News (newer articles):
Apr 23, 2012: Intel announces Ivy Bridge desktop and mobile CPUs
Related News (older articles):
Mar 27, 2012: Revised Ivy Bridge launch schedule confirmed
Dec 06, 2011: Ivy Bridge mobile CPU lineup revealed
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