NVIDIA releases G92-powered GeForce 8800 GT
Monday 29th October 2007, 03:03:00 PM, written by Geo
The newest kid on the GPU block, NVIDIA's G92, made its debut today powering GeForce 8800 GT SKUs. Performance-wise, a cross section of reviews suggest slotting between the current 8800 GTS and 8800 GTX products. NVIDIA reports price expectations in the $199-$249 range, but early checking at such retailers who actually have the board in stock shows street pricing to currently be in the $269+ range. Early reports of world-wide availability also seem to be fairly characterized as "spotty at best".
Beyond3D expects to provide full coverage of the new part once we've had a bit more time with it --for now, our editor files the following initial impressions:
Architecture and GPU Musings
* Very similar instruction issue rates compared to G8x products, depending on what you're measuring and comparing to. So no major cluster or SFU changes compared to older chips that I can tell as yet. Not finished there though.
* No double precision in hardware it seems. Ergo, no DP in 2007 for NVIDIA, one assumes.
* Minor scheduler/load balancing changes to favour certain executing conditions.
* 8 TA and 8 TF per cluster, with some odd results as you've already been pushing around in this thread.
* C/Z compression improvements at certain settings. Explains some of the perf versus GTS you might have seen.
* It's an 8 cluster GPU or I'll eat your hat, my hat, and the hat's hat.
* 256-bit, 16 ROPs, same Z-only rate as G8x.
* 600/1500/900 is pretty much very conservative in all areas.
* 17.5x18mm @ 734Mt @ 65nm.
* Maybe L1 is bigger. Maybe.
* PCIe Gen2. But maybe not the full spec, still figuring that one out.
8800 GT Board Thoughts
* NVIDIA thermal solution engineers need to take off the earmuffs and nuke the wax buildup. I hate saying that.
* Fast with games at 1080p and IQ upper pills popped.
In the meantime, feel free to enjoy the thoughts of our friends at The Tech Report on NVIDIA's newest.
Beyond3D expects to provide full coverage of the new part once we've had a bit more time with it --for now, our editor files the following initial impressions:
Architecture and GPU Musings
* Very similar instruction issue rates compared to G8x products, depending on what you're measuring and comparing to. So no major cluster or SFU changes compared to older chips that I can tell as yet. Not finished there though.
* No double precision in hardware it seems. Ergo, no DP in 2007 for NVIDIA, one assumes.
* Minor scheduler/load balancing changes to favour certain executing conditions.
* 8 TA and 8 TF per cluster, with some odd results as you've already been pushing around in this thread.
* C/Z compression improvements at certain settings. Explains some of the perf versus GTS you might have seen.
* It's an 8 cluster GPU or I'll eat your hat, my hat, and the hat's hat.
* 256-bit, 16 ROPs, same Z-only rate as G8x.
* 600/1500/900 is pretty much very conservative in all areas.
* 17.5x18mm @ 734Mt @ 65nm.
* Maybe L1 is bigger. Maybe.
* PCIe Gen2. But maybe not the full spec, still figuring that one out.
8800 GT Board Thoughts
* NVIDIA thermal solution engineers need to take off the earmuffs and nuke the wax buildup. I hate saying that.
* Fast with games at 1080p and IQ upper pills popped.
In the meantime, feel free to enjoy the thoughts of our friends at The Tech Report on NVIDIA's newest.
Tagging
nvidia ± g92, 8800gt
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