Tuesday, March 23rd 2010

AMD Phenom II X4 T Series Detailed

In a few weeks' time, AMD will be releasing its brand new set of six-core Phenom II X6 processors. These processors are based on the "Thuban" core, which is a socket AM3 implementation of the Istanbul six-core architecture. Along with as many as four Phenom II X6 models including a high-end Black Edition part, AMD will be introducing new quad-core processors under the Phenom II X4 T series. Some of the first two models in this series includes the Phenom II X4 960T and Phenom II X4 940T.

The Phenom II X4 960T operates at 3.30 GHz, while the 940T runs at 3.00 GHz. What makes these chips different from existing chips based on the Deneb die is that it is in fact based on the Thuban die with two cores disabled. The resulting quad-core chip is codenamed Zosma. The other characteristic feature about not only Zosma, but also Thuban in general, is the introduction of a feature called "Turbo Core". The feature senses performance needs and steps up clock speeds of some cores, while powering down others. The stepping up of clock speed happens on the fly, and using a jump in BClk multiplier by a few units. The new chips also come with the unofficial incentive of being able to unlock the two disabled cores to turn it into a six-core chip. Unlocking may not work in all cases.Source: Silicon Madness
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41 Comments on AMD Phenom II X4 T Series Detailed

#1
devguy
These will probably ship with 3mb out of 9mb L3 cache disabled. So, even if one purchases a Zosma with two truly defective cores, perhaps one can still reenable the remaining L3 like on the Phenom II 8xx series? That would likely make it perform faster than a Deneb.

As for a DDR2 controller on Thuban, ASUS have basically confirmed this by adding a new BIOS for an AM2+ board, giving it Thuban support: http://event.asus.com/mb/2010/m4_6cores/ - M4A78E-SE is DDR2 only.
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#2
btarunr
Editor & Senior Moderator
devguy said:
These will probably ship with 3mb out of 9mb L3 cache disabled. So, even if one purchases a Zosma with two truly defective cores, perhaps one can still reenable the remaining L3 like on the Phenom II 8xx series?

That would likely make it perform faster than a Deneb.
How so? 4 x 512 KB + 6 MB = 8 MB. L3 cache is 6 MB on Thuban. "9 MB total cache" for Phenom II X6 is 6 x 512 KB + 6 MB L3.
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#4
devguy
btarunr said:
How so? 4 x 512 KB + 6 MB = 8 MB. L3 cache is 6 MB on Thuban. "9 MB total cache" for Phenom II X6 is 6 x 512 KB + 6 MB L3.
Oh, my mistake. I thought the Phenom II x6 had 9mb L3 (not 9mb total). Good catch!
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#6
OneCool
I wonder if those clock speeds are with turbo or without?

3.30ghz sounds like a "Turbo" mode to me.


Wish I had the extra cash for a nice desktop.That 6 core AMD would be mine :)
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#7
cdawall
where the hell are my stars
OneCool said:
I wonder if those clock speeds are with turbo or without?

3.30ghz sounds like a "Turbo" mode to me.


Wish I had the extra cash for a nice desktop.That 6 core AMD would be mine :)
The 965 is stock with a 3.4ghz clockspeed 3.3ghz is standard
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#8
Zubasa
LittleLizard said:
is it me or intel and amd copy themselves each tecnology.

Eg: Hypertransport >>>> QPI
On die memory controller >>>>> Intel same
Intel's turbo >>>>>> AMD's turbo
True quad core arquitecture (amd) >>>>>> True quad core arquitecture (Intel i7 and later)

what will be in the next few years? Intel's fusion? :shadedshu
The fact that AMD and Intel have a cross-license agreement with each other? :wtf:
Remeber that Intel invented and owns the x86 architecture and AMD came up with the x86-64 extensions.
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#9
EarlZ
Performance wise, would the X6 be able to beat the i7 ?
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#10
Zubasa
EarlZ said:
Performance wise, would the X6 be able to beat the i7 ?
With that pricing, at lease AMD would expect them to compete with the 1156 i7s.
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#11
kenkickr
If I can get this ladies damn tag printer to work with the new system I built them I'll have the extra cash for a x6. Looks so yummy on my Crosshair's tummy
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#13
nt300
ASharp said:
Yeah, hopefully Gigabyte will push the BIOS updates out for the rest of the DDR2 boards. Would love to drop a X6 in mine without having to change up my entire system.
They have no choice AMD will pressure them to update the bios for us.
EarlZ said:
Performance wise, would the X6 be able to beat the i7 ?
Very much so, looks to me AMD will be better at price/performance than Intel. $299 for a 6-core :eek: hell ay.
Hope this helps to drive Intel prices down also.
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#14
F430
soo its will work on the AM2+?!?!?!?
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#15
cdawall
where the hell are my stars
nt300 said:
They have no choice AMD will pressure them to update the bios for us.
No they won't they didn't pressure anyone to update the bios on am2 to support gen 1 phenoms they didn't pressure them to update servers to support phenom or phenom ii they pressured you to buy a new board.
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#16
pjladyfox
Will be interesting to see how the 960T stacks up against the current 965 and how much the "Turbo Core" feature improves overall performance. Anyone know what the TDP on these is supposed to be as of yet?

I'm also hoping that either AMD implements support for the AMD Overdrive tool in the 8-series chipsets otherwise when these and the X6's drop I'm going to have to look for a 790X AM3 board to socket these into. Which does remind me, has anyone also heard any info as to if the Overdrive tool will ever be supported on the newer 8-series chipsets?

WSP said:
and yes...no AM2+ support. it's dead already. no future support for 'em. but as always..you can put AM3 processors on an AM2+ mobo.not sure with thuban though
Um, that's interesting since Gigabyte is already listing BIOS support for the X6 processors on some of there AM2+ motherboards:

http://forums.hexus.net/hexus-hardware/182814-phenom-ii-x6-will-work-am2-motherboards.html

Do you have a source for your info that refutes this?
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