Gigabyte announces AMD Deneb (45nm) Compatibility

[daveybrat]

http://www.gigabyte.com.tw/New..._List.aspx?NewsID=1423

GIGABYTE Announces Support for AMD® AM3/AM2+ 45nm Processors -
-- Simple BIOS Upgrade to Deliver AMD 45nm CPU Support -- 2008/11/18

Taipei, Taiwan, November 18, 2008 ? GIGABYTE, a leading manufacturer of motherboards and graphics cards today is pleased to announce support for the soon-to-be-released AMD 45nm processors including socket AM3 and AM2+ on a full range of current platforms including the AMD® 790FX, 790GX, 790X, 770, 780G, 740G as well as the NVIDIA® nForce® 750a SLI and GeForce®8200.

Those lucky enough to have one of these boards will have a nice upgrade path!

 

[Idontcare]

The upgrade path is only for the AM2+ PhII processors though. If you want AM3 processors and DDR3 then its new mobo time right?

Forget where I read it but I read that DDR3 was expected to yield a 5% IPC bump for PhII over an otherwise equivalent DDR2 setup.

Does power consumption notably decrease in going from DDR2 to DDR3? Performance/watt could get a nice bump with AM3 if IPC goes up 5% and power consumption comes down say 5%.

And is SLi paper certification on AM3 AMD mobo's still out of the question unlike SLi paper certification on X58 mobos?

 

[Philippart]

According to AMD's slides, and wikipedia http://en.wikipedia.org/wiki/AM3 , every AM3 cpu should work on an AM2/AM2+ mobo, because the AM3 cpus have both an integrated DDR2&DDR3 controller and yes according to some reports DDR3 improves the performance by about 5% like DDR to DDR2 did for the A64. Also the AM3 940 (actually expected to be called 945) will have a TDP of 95W vs. the 125W TDP of the AM2+ counterpart.

Here's an article (sadly only in german) with a summary of confirmed info: http://www.computerbase.de/new...45-nm-prozessoren_amd/

 

[Martimus]

Using relative scaling of dynamic power consumption (Thanks Idontcare), we can calculate what the higher binned parts may be for the AM3 model:

P = A*C*f*V^2

Again assuming a 3.0GHz Denebat 1.35V has an ACP of 95W
We get an AC of 17.375.

Assuming this AC holds true while scaling the CMOS to the temps and voltages under consideration:

The frequency at 125W calculates to 3.95GHz! So maybe we will see higher binned parts later next year.