The Real Conroe Successor: Clarkdale & All You Need to Know about Westmere
by Anand Lal Shimpi on September 24, 2009 6:00 PM EST- Posted in
- CPUs
AES-NI
Westmere does add some new instructions to x86, although the big expansion comes with AVX and Sandy Bridge next year. Westmere gets six new encryption/decryption instructions. The group of instructions accelerate AES (Advanced Encryption Standard) and are thus referred to as AES-NI.
All the new instructions need is software support and you'll see acceleration on Westmere. There were Winzip demos aplenty, which will have full acceleration support when the first Westmere chips hit.
When accelerated, Intel believes there will be no performance hit for encryption/decryption and it had the demos to back it up.
Here we're looking at disk throughput of an Intel SSD with full disk encryption enabled. Without AES-NI the performance takes a real hit:
40MB/s reads, 20 - 30MB/s writes
But with it, you can hardly tell you're even running AES:
~150MB/s reads, 50MB/s+ writes
Intel expects that full disk encryption and improved security will be commonplace once Westmere is in the mainstream.
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MonkeyPaw - Friday, September 25, 2009 - link
Yeah, every new iteration of Intel graphics is always promised to be fully functional and competitive. Yet every time, they aren't. Their IGPs ship with stuff disabled or not supported by drivers. 3D is a joke thanks to what has to be a one-man driver team. 2D usually works great, but that was mastered that almost a decade ago. I really don't have high expectations of Larribee. From what I gather, it will require a 6 pin and an 8 pin power connector, and all Intel can do is show it raytracing QuakeWars. Raytracing is great, but developers are not going to abandon rasterization as long as game consoles use it!Camikazi - Saturday, September 26, 2009 - link
Intel BoxStation i3720, featuring Larrabee raytracing and i3 CPU, coming soon! That would take care of rasterization :PBen90 - Thursday, September 24, 2009 - link
Yea its fairly annoying; especially in the forums when people arnt the most educated that there is a difference...I would love to be the person at intel responsible for creating their tick/tock drawings, must be the easiest, most secure job in the world...
Intel: Drawing boy! we need another tick tock picture now!
Drawing boy: Howbout we put some overlapping semi-circles
Intel:Perfect! That will work for another 2 weeks
Griswold - Friday, September 25, 2009 - link
What happened to the original tick-tock drawing boy? The one way back in 2006 who made that penis shaped tick-tock pattern - was he fired?kiwik - Wednesday, November 11, 2009 - link
You mean these tick-tock drawings?http://tweakers.net/ext/i/1190631924.png">http://tweakers.net/ext/i/1190631924.png
VooDooAddict - Saturday, September 26, 2009 - link
He went to work for Disney.MadMan007 - Friday, September 25, 2009 - link
Pat Gaysinger decided to go to a different company.the zorro - Friday, September 25, 2009 - link
these days the tic-toc seems more like a tic tac.AnnonymousCoward - Friday, September 25, 2009 - link
hilariousmdbusa - Thursday, September 24, 2009 - link
the clarkdale processor includes nehelem and westmere features--that really clears things up for me.
The problem is that when we go to buy a pc all we see is a processor name--i7 , i5, blah blah