VR-Zone checks out the GTX 285, a slightly higher clocked version of the GTX 280. Just how much difference can a dieshrink make to this 1.4 billion transistor monster of a GPU?

Eager to improve on the (now discontinued) GTX 280, Nvidia did the obvious thing and sent the GT200 GPU for a die shrink. The result is the GeForce GTX 285, which is essentially a higher clocked GTX 280.

Before we move on, let’s take a quick look at the specifications of both the GTX280 and the GTX285.

 Nvidia GeForce GTX 295Nvidia GeForce GTX 285Nvidia GeForce GTX 280Nvidia GeForce GTX 260 Core 216ATI Radeon HD4870 X2ATI Radeon HD4870 1GB
GPU2x GT200bGT200bGT200GT200/GT200bR700 XT R700
Process (nm)55556565/5555 
Core Clock (Mhz)576648620576750750
Shader Clock (Mhz)12421476 12961242750750
Memory Clock (Mhz)*9991242 1107999900900
Memory Size
(MB)
1792
(2x 896)
102410248962048
(2x 1024)
1024
Memory TypeGDDR3GDDR3 GDDR3GDDR3GDDR5 GDDR5
Unified Shaders/ Stream Processors480
(2x 240)
240240216800 800
Texture Mapping Units160 (2x 80)80807480 (2x 40)40
Raster Operation Units56 (2x 28)32322832 (2x 16)32
Memory Interface
(bits)
896
(2x 448)
512512448512
(2x 256)
 256
Outputs (on reference design)2x Dual-Link DVI
1x HDMI
2x Dual-Link DVI
TV-Out
2x Dual-Link DVI
TV-Out
2x Dual-Link DVI
TV-Out
2x Dual-Link DVI
TV-Out
 2
Power Connectors1x 6-pin, 1x 8-pin2x 6-pin1x 6-pin, 1x 8-pin2x 6-pin1x 6-pin, 1x 8-pin2x 6-pin
 Thermal Design Power (w)289183236182286150
Estimated Retail Price (USD)499399-289449

*Effective clock, or transfers/second, is twice the stated speed for GDDR3 and four times the stated speed for GDDR5.

The GTX 285 we’re using in this review is Asus’ TOP model, which uses the reference heatsink but is factory-overclocked. For the purposes of this article however we’ll be
downclocking the card to reference speeds and treating it as a reference GTX 285.