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GeForce GTX 285 2GB vs GeForce GTX 460 2GB

Intro

The GeForce GTX 285 2GB comes with a GPU clock speed of 648 MHz, and the 2048 MB of GDDR3 memory is set to run at 1242 MHz through a 512-bit bus. It also features 240 SPUs, 80 Texture Address Units, and 32 Raster Operation Units.

Compare those specifications to the GeForce GTX 460 2GB, which has a core clock speed of 675 MHz and a GDDR5 memory frequency of 900 MHz. It also uses a 256-bit memory bus, and makes use of a 40 nm design. It is made up of 336 SPUs, 56 TAUs, and 32 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 460 2GB 160 Watts
GeForce GTX 285 2GB 204 Watts
Difference: 44 Watts (28%)

Memory Bandwidth

The GeForce GTX 285 2GB, in theory, should perform much faster than the GeForce GTX 460 2GB overall. (explain)

GeForce GTX 285 2GB 158976 MB/sec
GeForce GTX 460 2GB 115200 MB/sec
Difference: 43776 (38%)

Texel Rate

The GeForce GTX 285 2GB is quite a bit (approximately 37%) better at texture filtering than the GeForce GTX 460 2GB. (explain)

GeForce GTX 285 2GB 51840 Mtexels/sec
GeForce GTX 460 2GB 37800 Mtexels/sec
Difference: 14040 (37%)

Pixel Rate

The GeForce GTX 460 2GB is a little bit (more or less 4%) faster with regards to full screen anti-aliasing than the GeForce GTX 285 2GB, and should be able to handle higher resolutions better. (explain)

GeForce GTX 460 2GB 21600 Mpixels/sec
GeForce GTX 285 2GB 20736 Mpixels/sec
Difference: 864 (4%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

Price Comparison

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GeForce GTX 285 2GB

Amazon.com

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GeForce GTX 460 2GB

Amazon.com

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Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

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Model GeForce GTX 285 2GB GeForce GTX 460 2GB
Manufacturer nVidia nVidia
Year January 15, 2009 July 2010
Code Name G200b GF104
Memory 2048 MB 2048 MB
Core Speed 648 MHz 675 MHz
Memory Speed 2484 MHz 3600 MHz
Power (Max TDP) 204 watts 160 watts
Bandwidth 158976 MB/sec 115200 MB/sec
Texel Rate 51840 Mtexels/sec 37800 Mtexels/sec
Pixel Rate 20736 Mpixels/sec 21600 Mpixels/sec
Unified Shaders 240 336
Texture Mapping Units 80 56
Render Output Units 32 32
Bus Type GDDR3 GDDR5
Bus Width 512-bit 256-bit
Fab Process 55 nm 40 nm
Transistors 1400 million 1950 million
Bus PCIe x16 2.0 PCIe x16
DirectX Version DirectX 10 DirectX 11
OpenGL Version OpenGL 3.1 OpenGL 4.1

Memory Bandwidth: Memory bandwidth is the max amount of information (in units of megabytes per second) that can be moved across the external memory interface within a second. It is calculated by multiplying the bus width by the speed of its memory. If the card has DDR memory, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

Hide Prices

GeForce GTX 285 2GB

Amazon.com

Check prices at:

GeForce GTX 460 2GB

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

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