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GeForce GTX 275 vs GeForce GTX 590

Intro

The GeForce GTX 275 comes with core clock speeds of 633 MHz on the GPU, and 1134 MHz on the 896 MB of GDDR3 RAM. It features 240 SPUs as well as 80 TAUs and 28 ROPs.

Compare that to the GeForce GTX 590, which has a clock speed of 607 MHz and a GDDR5 memory speed of 855 MHz. It also uses a 384-bit memory bus, and makes use of a 40 nm design. It is made up of 512 SPUs, 64 Texture Address Units, and 48 Raster Operation Units.

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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

As far as performance goes, the GeForce GTX 590 should in theory be much superior to 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 texture 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 high levels of AA is important to you, then the GeForce GTX 590 is superior to the GeForce GTX 275, and very much so. (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 past the external memory interface within a second. It is worked out by multiplying the card's bus width by its memory clock speed. If it uses DDR type memory, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed per second. This 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 card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

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