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GeForce GTX 275 vs GeForce GTX 295

Intro

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

Compare those specs to the GeForce GTX 295, which uses a 55 nm design. nVidia has set the core frequency at 576 MHz. The GDDR3 memory works at a speed of 999 MHz on this model. It features 240 SPUs as well as 80 Texture Address Units and 28 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 275 219 Watts
GeForce GTX 295 289 Watts
Difference: 70 Watts (32%)

Memory Bandwidth

Theoretically, the GeForce GTX 295 should be quite a bit faster than the GeForce GTX 275 in general. (explain)

GeForce GTX 295 223776 MB/sec
GeForce GTX 275 127008 MB/sec
Difference: 96768 (76%)

Texel Rate

The GeForce GTX 295 is a lot (more or less 82%) better at anisotropic filtering than the GeForce GTX 275. (explain)

GeForce GTX 295 92160 Mtexels/sec
GeForce GTX 275 50640 Mtexels/sec
Difference: 41520 (82%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GTX 295 is the winner, by far. (explain)

GeForce GTX 295 32256 Mpixels/sec
GeForce GTX 275 17724 Mpixels/sec
Difference: 14532 (82%)

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 295

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 295
Manufacturer nVidia nVidia
Year April 9, 2009 January 8, 2009
Code Name G200b G200b
Memory 896 MB 896 MB (x2)
Core Speed 633 MHz 576 MHz (x2)
Memory Speed 2268 MHz 1998 MHz (x2)
Power (Max TDP) 219 watts 289 watts
Bandwidth 127008 MB/sec 223776 MB/sec
Texel Rate 50640 Mtexels/sec 92160 Mtexels/sec
Pixel Rate 17724 Mpixels/sec 32256 Mpixels/sec
Unified Shaders 240 240 (x2)
Texture Mapping Units 80 80 (x2)
Render Output Units 28 28 (x2)
Bus Type GDDR3 GDDR3
Bus Width 448-bit 448-bit (x2)
Fab Process 55 nm 55 nm
Transistors 1400 million 1400 million
Bus PCIe x16 2.0 PCIe x16 2.0
DirectX Version DirectX 10 DirectX 10
OpenGL Version OpenGL 3.1 OpenGL 3.1

Memory Bandwidth: Memory bandwidth is the maximum amount of information (in units of megabytes per second) that can be moved across the external memory interface in one second. It is worked out by multiplying the bus width by the speed of its memory. In the case of DDR type RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly write to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Render Output Units by the the card's clock speed. 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, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

Hide Prices

GeForce GTX 275

Amazon.com

Check prices at:

GeForce GTX 295

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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