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GeForce GTX 280 vs GeForce GTX 580

Intro

The GeForce GTX 280 features clock speeds of 602 MHz on the GPU, and 1107 MHz on the 1024 MB of GDDR3 RAM. It features 240 SPUs along with 80 TAUs and 32 Rasterization Operator Units.

Compare all of that to the GeForce GTX 580, which features a clock frequency of 772 MHz and a GDDR5 memory frequency of 1002 MHz. It also features a 384-bit bus, and makes use of a 40 nm design. It is comprised of 512 SPUs, 64 TAUs, and 48 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 280 236 Watts
GeForce GTX 580 244 Watts
Difference: 8 Watts (3%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 580 should be 36% faster than the GeForce GTX 280 overall, due to its higher data rate. (explain)

GeForce GTX 580 192384 MB/sec
GeForce GTX 280 141696 MB/sec
Difference: 50688 (36%)

Texel Rate

The GeForce GTX 580 will be a bit (approximately 3%) better at texture filtering than the GeForce GTX 280. (explain)

GeForce GTX 580 49408 Mtexels/sec
GeForce GTX 280 48160 Mtexels/sec
Difference: 1248 (3%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GTX 580 is the winner, by a large margin. (explain)

GeForce GTX 580 37056 Mpixels/sec
GeForce GTX 280 19264 Mpixels/sec
Difference: 17792 (92%)

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 280

Amazon.com

Check prices at:

GeForce GTX 580

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 280 GeForce GTX 580
Manufacturer nVidia nVidia
Year June 17, 2008 November 2010
Code Name G200 GF110
Memory 1024 MB 1536 MB
Core Speed 602 MHz 772 MHz
Memory Speed 2214 MHz 4008 MHz
Power (Max TDP) 236 watts 244 watts
Bandwidth 141696 MB/sec 192384 MB/sec
Texel Rate 48160 Mtexels/sec 49408 Mtexels/sec
Pixel Rate 19264 Mpixels/sec 37056 Mpixels/sec
Unified Shaders 240 512
Texture Mapping Units 80 64
Render Output Units 32 48
Bus Type GDDR3 GDDR5
Bus Width 512-bit 384-bit
Fab Process 65 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: Bandwidth is the largest amount of information (measured in megabytes per second) that can be moved over the external memory interface in one second. It is calculated by multiplying the card's bus width by the speed of its memory. In the case of DDR type memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed in one second. This is worked out by multiplying the total amount of texture units by the core speed of the chip. The better the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels 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 number is calculated by multiplying the amount of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

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GeForce GTX 280

Amazon.com

Check prices at:

GeForce GTX 580

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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