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NVIDIA GeForce GTX 285 Unveiled

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NVIDIA GeForce GTX 285 Unveiled Empty NVIDIA GeForce GTX 285 Unveiled

Post by Guest Tue Jan 20, 2009 6:59 am

NVIDIA GeForce GTX 285 Unveiled Nvidia-logo


One short week ago, NVIDIA unveiled the GeForce GTX 295, and with it reclaimed the overall 3D performance crown from a resurgent AMD. As you may know by now, the dual-GPU powered GeForce GTX 295 features a pair of re-worked GT200 GPUs, manufactured using a more advanced 55nm fabrication process than its 65nm predecessor. Looking at the specifications for the individual GPUs used on the GeForce GTX 295, however, revealed something interesting. You see, the GPUs on the GeForce GTX 295 featured a full complement of 240 shader cores, like the former flagship GTX 280, but they had "only" a 448-bit memory interface. The GeForce GTX 280 had a 512-bit interface.

NVIDIA didn't simply lop off a memory partition to create the GPUs for the GTX 295 though. The 55nm GT200B GPUs are fully capable of utilizing a 512-bit interface. NVIDIA chose to implement a 448-bit memory interface per GPU on the GTX 295 to decrease board complexity, and quite frankly because they didn't need to go any wider to have the fastest graphics card on the market. But that meant the GT200B GPU, as it's implemented on the GTX 295, wasn't being used to its fullest potential. This changes today.

Although the GeForce GTX 285 we'll be showing you here hasn't exactly been a well kept secret, its final specifications and performance have been. As its name implies, the GeForce GTX 285 is a step up from the GTX 280. Just how large of a step up remains to be seen, however. Hopefully, we'll be able to find out in the pages ahead as we take the GeForce GTX 285 for a spin through a complete battery of benchmarks, including some numbers from the just-released hot new game title, Mirror's Edge.


NVIDIA GeForce GTX 285 Unveiled GeForce_GTX_285



Fabrication Process
55 nm
Core Clock (texture and ROP units)
648 MHz
Shader Clock (Stream Processors)
1476 MHz
Memory Clock (Clock rate / Data rate)
1242 MHz / 2484 MHz
Total Video Memory
1 GB
Memory Interface
512-bits
Total Memory Bandwidth
159.0 GB/s
Processor Cores
240
ROP Units
32
Texture Filtering Units
80
Texture Filtering Rate
51.8 GigaTexels/sec
Connectors
2 x Dual-Link DVI-I 1 x 7-pin HDTV Out
RAMDACs
400 MHz
Bus Technology
PCI Express 2.0
Form Factor
Dual Slot
Power Connectors
2 x 6-pin
Max Board Power (TDP)
183 watts
GPU Thermal Threshold
105° C


As you can see in the list above, the GeForce GTX 285's reference specifications call for a 648MHz core clock and a 1476MHz shader clock, with 1GB of GDDR3 memory running at 1242MHz (2484MHz DDR). The card sports a 512-bit memory interface and at the clocks mentioned here, it offers total memory bandwidth of 159GB/s. The number of shader cores (240), ROP units (32), and texture filtering units (80), remains unchanged from the GeForce GTX 280. Max board power has been reduced to 183 watts, from 236 watts on the 280. And the card needs only a pair of 6-pin PCI Express power feeds. No 8-pin feeds are necessary.
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Post by warriorfist Sat Feb 21, 2009 7:58 am

Dear F***** GOD!THe memory clock is more than twice my overclocked maximum!and this monster has 240 processing cores! shocked mine only has 16 :crying1: it must cost a heck of a bundle right now pale
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Post by Guest Sat Feb 21, 2009 8:05 am

just 399$ (USD) heee yaaa
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Post by warriorfist Sat Feb 21, 2009 8:26 am

Lol I will wait till it drops to 100$ to think about it laughing
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