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GeForce GTX 285 2GB vs GeForce GTX 480

Intro

The GeForce GTX 285 2GB comes with a core clock speed of 648 MHz and a GDDR3 memory speed of 1242 MHz. It also uses a 512-bit memory bus, and makes use of a 55 nm design. It features 240 SPUs, 80 TAUs, and 32 ROPs.

Compare those specifications to the GeForce GTX 480, which comes with core speeds of 700 MHz on the GPU, and 924 MHz on the 1536 MB of GDDR5 memory. It features 480 SPUs as well as 60 Texture Address Units and 48 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 285 2GB 204 Watts
GeForce GTX 480 250 Watts
Difference: 46 Watts (23%)

Memory Bandwidth

In theory, the GeForce GTX 480 is 12% faster than the GeForce GTX 285 2GB in general, due to its higher data rate. (explain)

GeForce GTX 480 177408 MB/sec
GeForce GTX 285 2GB 158976 MB/sec
Difference: 18432 (12%)

Texel Rate

The GeForce GTX 285 2GB is a lot (approximately 23%) faster with regards to texture filtering than the GeForce GTX 480. (explain)

GeForce GTX 285 2GB 51840 Mtexels/sec
GeForce GTX 480 42000 Mtexels/sec
Difference: 9840 (23%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GTX 480 is superior to the GeForce GTX 285 2GB, by far. (explain)

GeForce GTX 480 33600 Mpixels/sec
GeForce GTX 285 2GB 20736 Mpixels/sec
Difference: 12864 (62%)

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 480

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 480
Manufacturer nVidia nVidia
Year January 15, 2009 March 2010
Code Name G200b GF100
Memory 2048 MB 1536 MB
Core Speed 648 MHz 700 MHz
Memory Speed 2484 MHz 3696 MHz
Power (Max TDP) 204 watts 250 watts
Bandwidth 158976 MB/sec 177408 MB/sec
Texel Rate 51840 Mtexels/sec 42000 Mtexels/sec
Pixel Rate 20736 Mpixels/sec 33600 Mpixels/sec
Unified Shaders 240 480
Texture Mapping Units 80 60
Render Output Units 32 48
Bus Type GDDR3 GDDR5
Bus Width 512-bit 384-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 maximum amount of information (in units of megabytes per second) that can be transported past the external memory interface within a second. It is worked out by multiplying the bus width by the speed of its memory. In the case of DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly record to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

Hide Prices

GeForce GTX 285 2GB

Amazon.com

Check prices at:

GeForce GTX 480

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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