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Benchmark Results: SiSoftware Sandra 2009 SP3

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The ALU and MFLOPS benchmarks don’t return surprising results. The quad-core is almost twice as fast due to threading optimizations, despite its lower clock speed—as expected.

The encryption score is entirely different. This overall result says that the Clarkdale-based Core i5 with AES acceleration is nearly three times faster than a Core i7-870 quad-core.

This is why the encryption score looks so great. Plain AES-256 encryption is more than six times faster on the hardware-accelerated dual-core processor.

The SHA-256 encryption test proves that the feature only accelerates AES.

Of course, the Lynnfield design sports an on-die memory controller, while Clarkdale's memory controller is on-package, on the 45nm graphics core. As a result, its memory bandwidth is markedly lower.

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mi1ez 02/02/2010 10:03
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Good grief. About 3 mistakes on the first page!

mi1ez 02/02/2010 10:22
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I may be being a bit skeptical, butputting on the highest i5 chips that include a GPU? Does this not sound like a money spinner?

aje21 02/02/2010 14:13
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Nice to see that Intel have finally caught up with Via...
Shame we can't see any benchmarks to compare the performance of the AES engines.

wifiwolf 03/02/2010 19:14
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I'd think it's not all good things coming from this ability.
Malware programmers can benefit from it as it should accelerate decrypting passwords and alike.

psiboy 04/02/2010 10:15
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Gee lets compare a quad core to a dual core? WTF! No balance or objectivity here at all! This got past the editors how?

Anonymous 04/02/2010 15:39
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How does the CPU knows about to use the ASE instructions? Is there a special library comming with the Benchmarks?

Anonymous 04/02/2010 23:04
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Please do some Linux tests! IMHO the support for the new AES-NI has been in the kernel for quite some time (done by Intel long before those CPUs even came to the market!) and dm-crypt is a very nice way to test REAL WORLD speeds.

Anonymous 05/02/2010 17:48
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Imagine new i5 without AES-NI! Why would you buy it anyway when it is always inferior compared to i7? Well - there comes Intel marketing guys and say: We will put AES-NI just in i5 (in the beginning) hoping that the product will attract some buyers. If they put now AES-NI in i7, i5 will be doomed processor.

roots 03/03/2010 02:21
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This would be very nice in a firewall. VPN thoughput on one of these CPU's would be awsome.

My Guess is that where this CPU will end up. The next gen of Cisco ASA series and the like.

Anonymous 02/06/2010 12:55
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Still kinda sucks... as the AES-NI is only for the 1156 socket. Unless I feel like forking out 1K for the 980x (1366)

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