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GeForce GTX 275 vs GeForce GTX 580 3GB

Intro

The GeForce GTX 275 features a core clock frequency of 633 MHz and a GDDR3 memory frequency of 1134 MHz. It also uses a 448-bit memory bus, and makes use of a 55 nm design. It is comprised of 240 SPUs, 80 TAUs, and 28 Raster Operation Units.

Compare that to the GeForce GTX 580 3GB, which features core speeds of 772 MHz on the GPU, and 1002 MHz on the 3072 MB of GDDR5 memory. It features 512 SPUs along with 64 TAUs and 48 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 275 219 Watts
GeForce GTX 580 3GB 244 Watts
Difference: 25 Watts (11%)

Memory Bandwidth

In theory, the GeForce GTX 580 3GB is 51% quicker than the GeForce GTX 275 overall, because of its higher bandwidth. (explain)

GeForce GTX 580 3GB 192384 MB/sec
GeForce GTX 275 127008 MB/sec
Difference: 65376 (51%)

Texel Rate

The GeForce GTX 275 will be a bit (more or less 2%) better at AF than the GeForce GTX 580 3GB. (explain)

GeForce GTX 275 50640 Mtexels/sec
GeForce GTX 580 3GB 49408 Mtexels/sec
Difference: 1232 (2%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce GTX 580 3GB is the winner, and very much so. (explain)

GeForce GTX 580 3GB 37056 Mpixels/sec
GeForce GTX 275 17724 Mpixels/sec
Difference: 19332 (109%)

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 275

Amazon.com

Check prices at:

GeForce GTX 580 3GB

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 275 GeForce GTX 580 3GB
Manufacturer nVidia nVidia
Year April 9, 2009 November 2010
Code Name G200b GF110
Memory 896 MB 3072 MB
Core Speed 633 MHz 772 MHz
Memory Speed 2268 MHz 4008 MHz
Power (Max TDP) 219 watts 244 watts
Bandwidth 127008 MB/sec 192384 MB/sec
Texel Rate 50640 Mtexels/sec 49408 Mtexels/sec
Pixel Rate 17724 Mpixels/sec 37056 Mpixels/sec
Unified Shaders 240 512
Texture Mapping Units 80 64
Render Output Units 28 48
Bus Type GDDR3 GDDR5
Bus Width 448-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 largest amount of data (measured in megabytes per second) that can be transported past the external memory interface in one second. The number is worked out by multiplying the interface width by its memory speed. If it uses DDR type memory, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster 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 texture map elements (texels) that are applied per second. This figure 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 video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. 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 potential to reach the maximum fill rate.

Display Prices

Hide Prices

GeForce GTX 275

Amazon.com

Check prices at:

GeForce GTX 580 3GB

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.

Comments

One Response to “GeForce GTX 275 vs GeForce GTX 580 3GB”
greg says:

polh kalh analish sinxaritiria !!!

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