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GeForce 8600 GTS - Image courtesy BootDaily
GeForce 8600 and 8500 unified shader amounts unveiled

DailyTech has come across more details of NVIDIA’s upcoming GeForce 8600 GTS, 8600 GT and 8500 GT graphics processors. NVIDIA expects to unleash the GeForce 8600 and 8500-series graphics processors later this month. AMD is ready to take on NVIDIA’s midrange offerings with its upcoming ATI Radeon HD2600 and 2400 offerings.

Slotting below NVIDIA’s GeForce 8800 GTS 320MB SKU is the GeForce 8600 GTS. The top end G86-based graphics processor features 32-stream processors clocked at 1.45 GHz. NVIDIA pairs the 32-stream processors with 256MB of GDDR3 memory clocked at 1.0 GHz. A 128-bit memory interface connects the memory to the GPU for 32GB/sec of memory bandwidth.

Sporting lower clock speeds is the GeForce 8600 GT. The GeForce 8600 GT has the same 32-stream processors as the GTS; however, the unified shaders have a 1.18 GHz clock. Core and memory clock are also lower at 540 MHz and 700 MHz, respectively. Memory bandwidth is downgraded to 22.4 GB/sec as a result of the lower memory clocks.

NVIDIA GeForce 8-series
Model
8600 GTS 8600 GT
8500 GT
8800 GTS
Stream processors
32 32 16 96
Core clock
675 MHz 540 MHz 450 MHz 500 MHz
Shader clock
1.45 GHz
1.18 GHz 900 MHz 1.2 GHz
Memory clock
1.0 GHz 700 MHz 400 MHz 900 MHz
Memory interface
128-bit 128-bit 128-bit 320-bit
Memory bandwidth
32 GB/sec 22.4 GB/sec 12.8 GB/sec 64 GB/sec
Texture fill rate (Billion/sec)
10.8 8.6 3.6 24

Filling in the bottom of the retail GeForce 8-series lineup is the GeForce 8500 GT. The value model has 16-stream processors clocked at 900 MHz – half the amount present on the GeForce 8600-series. NVIDIA pairs the 450 MHz core with DDR2 memory clocked at 400 MHz. The GeForce 8500 GT features the same 128-bit memory interface as the GeForce 8600-series. Memory bandwidth is downgraded to 12.8 GB/sec.

Expect NVIDIA to launch its new midrange product lineup tomorrow.  Additional details are already starting to leak out early, and some brick-and-mortar stores already have the cards on the shelf.


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32 stream procs?
By mm2587 on 4/16/2007 8:13:15 PM , Rating: 5
So this thing has a 128 bit memory interface and 32 stream processors? Is it even going to be able to take on the 7900gs performancewise? I mean mid range cards are always a bit week, but a little over a third of the power of the next price point? These better be dirt cheap or I can't see the 8600gts doing very well. Those who want a cheap card will just pick up the 8500 or the cheaper 8600. and the midrange gamers will either stick with 7 series cards for now, or spend a bit more and get an 8800.




RE: 32 stream procs?
By xsilver on 4/16/2007 9:37:42 PM , Rating: 2
the performance of the 8600gts can be very misleading; most premliminary reviews have shown that on 3dmark 06 the performance is very good; higher than the 7950GT - but in actual games the performance is quite bad, barely equivalent to the 7900GS, which can be had for very cheap these days.

so unless you need the DX10, which is what skews the 3dmark score, its a disappointing card indeed. if only the 8800gts 320mb would drop a little in price, I think most people would be very happy.


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