The Official G84/G86 Rumours & Speculation Thread

My recently-built system, on the other hand has different requirements to yours. I don't use it as a PVR (despite having Windows MCE installed) so all I need to use it for is playback of stored music/Divx video. With this in mind (and working to a tight-fisted budget!), I selected a motherboard with integrated graphics - nForce 6100 without any hardware-assisted HD PureVideo decoding - and a low-end CPU: Sempron 3200+. Once drive prices are greatly reduced, I hope to be able to use this system to playback HD-DVD/Blu-Ray. At present, my low-end system can decode 720p h.264 flawlessly (using the CoreAVC codec) but it will probably struggle with 1080p so I'll need to upgrade either the motherboard to obtain UVD (or NVidia equivalent) support or maybe get a cheap dual-core chip.

The prime motivating factor when I was building my PC was to produce a low-profile and almost silent PC and my low-end highly-undervolted processor puts out practically no heat => silent cooling. When thinking of 1080p support I'd therefore prefer to keep this processor and obtain a new motherboard with full h.264 hardware decode in the IGP. This would undoubtedly put less heat into the system than even a low-end dual-core chip.

In effect, we're agreeing here to some extent - your PC's specification should be decided by its expected uses. My point is that adding full decode capability to every IGP is really a no-brainer because it will take what, just a few mm^2 of die space (?) but will enable a much wider spectrum of usage. Of course, once these decode capabilities are widespread, we'll need to start looking towards providing full real-time hardware encode of h.264 which will be a bit trickier. :smile:
 
OCW
We received news that the 8600GTS will be available on sale on 17 apr.

The 8600GT and 8500GT will be announced on the same day but will be on sale from 1st may 2007.

Pricing of 8600GTS is around $200-250
8600GT is around $150-180
8500GT is around $90
Quite a slip from launching around CeBIT. If AMD can get their chips out in time (supposed May launch), there wouldnt be much of a headstart for Nvidia in the midrange/low-end segment.
 
Towards the left of the GPU, that 8600 GTS PCB looks incredibly... "clean".

Maybe they've designed the PCB for something else ?
It sure seems there's an empty space in there.
 
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I'm disappointed by the low bandwidth of the 8500GT, I thought it would have GDDR3 (at say 550MHz). as for the whole G86 family, maybe it's a misunderstanding as obviously they all will have the 128bit capable G86? There's hardly any slower RAM than 8500GT's 400MHz DDR2 (which is on 7300GS), so the three lower cards could end up with similar performance.
My speculation was 64bit for the 8400GS (maybe with turbocache) and turbocache crap (32bit VRAM?) for the 8300GS.
 
it looks like it's replacing 7300GT, and as for the added numbers I think it makes sense.
People might not be understanding the difference between 7300LE and 7300GS, or that 7300GT is somewhat more similar to 7600GS. bigger number == better is useful here, especially with the performance delta.
 
Not sure if this was mentioned yet, but G84 GT will consume about 55W. Not sure about G84 GTX, but it should be a bit higher. Compare that to the rumored 75W-120W for RV630 and 25W-35W for RV610.
 
Not sure if this was mentioned yet, but G84 GT will consume about 55W. Not sure about G84 GTX, but it should be a bit higher. Compare that to the rumored 75W-120W for RV630 and 25W-35W for RV610.

8600GTS has a external 2x3pin connector like the RV630 GDDR3 and GDDR4 versions.

Something wrong with the rumors coming in the last few week, from nv side everything shine, from amd side everything sh*t.
I can't belive rv630 bad performer (x2600->x2400 suggest this), power consuption high (121/128watt with 65nm GPU :rolleyes: ), whats coming next? the rv630 yield 30%? :smile:
 
Something wrong with the rumors coming in the last few week, from nv side everything shine, from amd side everything sh*t.:
Well, at least that should make it pretty clear who is probably leaking information right now! ;) It'll be interesting to see how the final specs compare. And no, I'm not refering to CJ's, whose information I respect.

FWIW, I'm not really believing the RV630 power specs right now. If RV610 needs 25-30W, why would RV630 need 120W?
 
So what's the current expectation for G84?

Rumoured so far - 128-bit / 8 Rops / 675Mhz / 64 shaders / 16 TMU's

That looks to be a bit bandwidth limited relative to the other G80 cards. In any case it should be interesting to see how it does against the 79xx series with the bandwidth deficit. I'd expect that it would mop the floor with them in most cases.
 
So what's the current expectation for G84?

Rumoured so far - 128-bit / 8 Rops / 675Mhz / 64 shaders / 16 TMU's

That looks to be a bit bandwidth limited relative to the other G80 cards. In any case it should be interesting to see how it does against the 79xx series with the bandwidth deficit. I'd expect that it would mop the floor with them in most cases.

And we still don't know anything about shader clockspeed of any G84/G86 version.
Could it be that it's actually higher than 8800 GTX (1.35GHz), considering the extra 100MHz on the G84 (8600 GTS) core ?
 
Well I'll be very impressed if they pull off those specs in a 55W power envelope. For that reason I'm not expecting anything too outrageous in the shader clock domain. With the current rumoured specs it already looks like it would give the 7950GT a run for its money in lower resolutions.
 
The 8600GTS might be OK with 128 bit bus and 1000MHz graphics but the 8600GT if it is just lower clocked might run into problems with 700Mhz if it overclocks well on the gpu. Probably the best bet is to wait for one of the AIB's to take the 8600GT and stick in some 800Mhz memory which should also have some headroom on top. THe 8500GT should be good with GDDR3 as well, the DDR2 might have a problem.

Got to say these do not grab me the same way as did the 7900GS when I upgraded from the 6800GS, that was a good step up. Now it seems the 8800GTS 320MB is roughly the same upgrade.

I think I'll just sit tight over the summer.
 
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