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GeForce GTX 275 vs GeForce GTX 590

Intro

The GeForce GTX 275 uses a 55 nm design. nVidia has clocked the core speed at 633 MHz. The GDDR3 RAM works at a frequency of 1134 MHz on this particular card. It features 240 SPUs along with 80 Texture Address Units and 28 Rasterization Operator Units.

Compare those specs to the GeForce GTX 590, which makes use of a 40 nm design. nVidia has clocked the core speed at 607 MHz. The GDDR5 memory works at a frequency of 855 MHz on this model. It features 512 SPUs along with 64 Texture Address Units and 48 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 275 219 Watts
GeForce GTX 590 365 Watts
Difference: 146 Watts (67%)

Memory Bandwidth

Theoretically, the GeForce GTX 590 should be much faster than the GeForce GTX 275 overall. (explain)

GeForce GTX 590 328320 MB/sec
GeForce GTX 275 127008 MB/sec
Difference: 201312 (159%)

Texel Rate

The GeForce GTX 590 is quite a bit (approximately 53%) faster with regards to anisotropic filtering than the GeForce GTX 275. (explain)

GeForce GTX 590 77696 Mtexels/sec
GeForce GTX 275 50640 Mtexels/sec
Difference: 27056 (53%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce GTX 590 is a better choice, by far. (explain)

GeForce GTX 590 58272 Mpixels/sec
GeForce GTX 275 17724 Mpixels/sec
Difference: 40548 (229%)

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.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

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GeForce GTX 275

Amazon.com

Check prices at:

GeForce GTX 590

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 590
Manufacturer nVidia nVidia
Year April 9, 2009 March 2011
Code Name G200b GF110
Memory 896 MB 1536 MB (x2)
Core Speed 633 MHz 607 MHz (x2)
Memory Speed 2268 MHz 3420 MHz (x2)
Power (Max TDP) 219 watts 365 watts
Bandwidth 127008 MB/sec 328320 MB/sec
Texel Rate 50640 Mtexels/sec 77696 Mtexels/sec
Pixel Rate 17724 Mpixels/sec 58272 Mpixels/sec
Unified Shaders 240 512 (x2)
Texture Mapping Units 80 64 (x2)
Render Output Units 28 48 (x2)
Bus Type GDDR3 GDDR5
Bus Width 448-bit 384-bit (x2)
Fab Process 55 nm 40 nm
Transistors 1400 million 3000 million
Bus PCIe x16 2.0 PCIe 2.0 x16
DirectX Version DirectX 10 DirectX 11
OpenGL Version OpenGL 3.1 OpenGL 4.1

Memory Bandwidth: Bandwidth is the max amount of information (in units of MB per second) that can be transferred over the external memory interface in a second. It is calculated by multiplying the interface width by the speed of its memory. If it uses DDR RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied in one second. This number is calculated by multiplying the total number of texture units of the card by the core clock speed of the chip. The higher this number, the better the video card will be at handling 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 chip can possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.

Display Prices

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GeForce GTX 275

Amazon.com

Check prices at:

GeForce GTX 590

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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