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GeForce GTX 275 vs GeForce GTX 295

Intro

The GeForce GTX 275 uses a 55 nm design. nVidia has clocked the core speed at 633 MHz. The GDDR3 memory is set to run at a frequency of 1134 MHz on this particular model. It features 240 SPUs as well as 80 Texture Address Units and 28 ROPs.

Compare all of that to the GeForce GTX 295, which comes with a core clock frequency of 576 MHz and a GDDR3 memory speed of 999 MHz. It also makes use of a 448-bit bus, and makes use of a 55 nm design. It is made up of 240 SPUs, 80 Texture Address Units, and 28 ROPs.

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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

Performance-wise, the GeForce GTX 295 should theoretically be much superior to 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 will be much (approximately 82%) better at AF than the GeForce GTX 275. (explain)

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

Pixel Rate

The GeForce GTX 295 will be much (approximately 82%) faster with regards to full screen anti-aliasing than the GeForce GTX 275, and also should be capable of handling higher resolutions more effectively. (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: Bandwidth is the largest amount of information (measured in megabytes per second) that can be transported over the external memory interface within a second. The number is calculated by multiplying the card's bus width by its memory speed. In the case of DDR memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, 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 can be applied in one second. This figure is worked out by multiplying the total number of texture units by the core clock speed of the chip. The higher this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly record to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach 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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