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GeForce GTX 285 2GB vs GeForce GTX 470

Intro

The GeForce GTX 285 2GB features a core clock frequency of 648 MHz and a GDDR3 memory speed of 1242 MHz. It also uses a 512-bit memory bus, and uses a 55 nm design. It features 240 SPUs, 80 Texture Address Units, and 32 Raster Operation Units.

Compare all that to the GeForce GTX 470, which makes use of a 40 nm design. nVidia has clocked the core speed at 607 MHz. The GDDR5 memory is set to run at a frequency of 837 MHz on this particular card. It features 448 SPUs along with 56 Texture Address Units and 40 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 285 2GB 204 Watts
GeForce GTX 470 215 Watts
Difference: 11 Watts (5%)

Memory Bandwidth

Performance-wise, the GeForce GTX 285 2GB should theoretically be a little bit better than the GeForce GTX 470 in general. (explain)

GeForce GTX 285 2GB 158976 MB/sec
GeForce GTX 470 133920 MB/sec
Difference: 25056 (19%)

Texel Rate

The GeForce GTX 285 2GB should be much (about 53%) faster with regards to anisotropic filtering than the GeForce GTX 470. (explain)

GeForce GTX 285 2GB 51840 Mtexels/sec
GeForce GTX 470 33992 Mtexels/sec
Difference: 17848 (53%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GTX 470 is superior to the GeForce GTX 285 2GB, but only just. (explain)

GeForce GTX 470 24280 Mpixels/sec
GeForce GTX 285 2GB 20736 Mpixels/sec
Difference: 3544 (17%)

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

Check prices at:

GeForce GTX 470

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.

Specifications

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Model GeForce GTX 285 2GB GeForce GTX 470
Manufacturer nVidia nVidia
Year January 15, 2009 March 2010
Code Name G200b GF100
Memory 2048 MB 1280 MB
Core Speed 648 MHz 607 MHz
Memory Speed 2484 MHz 3348 MHz
Power (Max TDP) 204 watts 215 watts
Bandwidth 158976 MB/sec 133920 MB/sec
Texel Rate 51840 Mtexels/sec 33992 Mtexels/sec
Pixel Rate 20736 Mpixels/sec 24280 Mpixels/sec
Unified Shaders 240 448
Texture Mapping Units 80 56
Render Output Units 32 40
Bus Type GDDR3 GDDR5
Bus Width 512-bit 320-bit
Fab Process 55 nm 40 nm
Transistors 1400 million 3000 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 data (measured in MB per second) that can be moved over the external memory interface in a second. The number is worked out by multiplying the card's interface width by its memory speed. In the case of DDR memory, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly record to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

Hide Prices

GeForce GTX 285 2GB

Amazon.com

Check prices at:

GeForce GTX 470

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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