GeForce GTX 285 1GB vs GeForce GTX 570

Intro

The GeForce GTX 285 1GB features a core clock frequency of 648 MHz and a GDDR3 memory frequency of 1242 MHz. It also makes use of a 512-bit bus, and uses a 55 nm design. It is made up of 240 SPUs, 80 TAUs, and 32 ROPs.

Compare all that to the GeForce GTX 570, which uses a 40 nm design. nVidia has clocked the core speed at 732 MHz. The GDDR5 RAM runs at a speed of 950 MHz on this model. It features 480 SPUs as well as 60 Texture Address Units and 40 ROPs.

Price Comparison

Please note that the price comparisons are based on search keywords, and might not be the exact same card listed on this page. We have no control over the accuracy of their search results.

GeForce GTX 285 1GB Amazon.com Other US-based stores Amazon.co.uk Amazon.de Amazon.fr

GeForce GTX 570 Amazon.com Other US-based stores Amazon.co.uk Amazon.de Amazon.fr

Specifications

Model	GeForce GTX 285 1GB	GeForce GTX 570
Manufacturer	nVidia	nVidia
Year	January 15, 2009	December 2010
Code Name	G200b	GF110
Fab Process	55 nm	40 nm
Bus	PCIe x16 2.0	PCIe x16
Memory	1024 MB	1280 MB
Core Speed	648 MHz	732 MHz
Shader Speed	1476 MHz	1464 MHz
Memory Speed	1242 MHz	950 MHz
Unified Shaders	240	480
Texture Mapping Units	80	60
Render Output Units	32	40
Bus Type	GDDR3	GDDR5
Bus Width	512-bit	320-bit
DirectX Version	DirectX 10	DirectX 11
OpenGL Version	OpenGL 3.1	OpenGL 4.1
Power (Max TDP)	204 watts	219 watts
Shader Model	4.0	5.0
Bandwidth	158976 MB/sec	152000 MB/sec
Texel Rate	51840 Mtexels/sec	43920 Mtexels/sec
Pixel Rate	20736 Mpixels/sec	29280 Mpixels/sec

Memory Bandwidth: Memory bandwidth is the largest amount of data (measured in MB per second) that can be moved across the external memory interface within a second. It is worked out by multiplying the card's bus width by its memory clock speed. If it uses DDR type RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied per second. This is calculated by multiplying the total number of texture units by the core clock speed of the chip. The higher the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly write to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.