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Intel Sandy Bridge-E i7-3820 CPU Review

CPU by leeghoofd @ 2012-03-01

Who said all good things come in 3 fold ? Today we introduce Intel's youngest offering in the SnB-e lineup. The i7-3820 is not a hexacore like it's two bigger brothers ; the 3930K and 3960X. But a Quadcore version for the socket 2011 platform. This allows Intel to launch it at a far more affordable price then the two previous mentioned socket 2011 models. Thus making the i7-3820 maybe a perfect replacement CPU for the socket 1366 Bloomfield CPU's. But the competition is fierce, not from AMD, but within Intel's own lineup. What has this i7-3820 more to offer then eg a similar priced 2600K SnB ? After a brief introduction about this i7-3820 we are continuing straight to the results to spot any noteworthy performance differences.

4GHz Comparison

Let's do a quick cross check with no Turbo activated, just all CPU's running at 4000Mhz and the rams at 1600Mhz C8. SuperPi is favouring the fast Level 3 cache from the SB CPU's, the slightly bigger cache from both the hexacores models edge the i7-3820. The older Intel CPU's loose serious ground.

Bandwith wise all the S2011 CPU's are just a few hundreds of MB/S apart. The gap with the older SB CPU's is far bigger, hence it partially explains the above SuperPi 32M results.

The tide turns for the i7-3820 CPU, the 2600K with all cores operating at 4000mhz completes the CineBench R11 test a bit faster.

Similar outcome with X264HD. The lack of Turbo, plus similar core speed is in favour of the 2600K CPU.

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