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GeForce GTX 275 vs GeForce GTX 295

Intro

The GeForce GTX 275 features core speeds of 633 MHz on the GPU, and 1134 MHz on the 896 MB of GDDR3 RAM. It features 240 SPUs along with 80 TAUs and 28 Rasterization Operator Units.

Compare all of that to the GeForce GTX 295, which features a clock frequency of 576 MHz and a GDDR3 memory frequency of 999 MHz. It also features a 448-bit memory bus, and makes use of a 55 nm design. It is made up of 240 SPUs, 80 TAUs, and 28 Raster Operation Units.

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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

The GeForce GTX 295, in theory, should be a lot 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 will be quite a bit (approximately 82%) better at texture filtering 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 is a lot (approximately 82%) better at anti-aliasing than the GeForce GTX 275, and also will be capable of handling higher screen resolutions without losing too much performance. (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 largest amount of data (measured in megabytes per second) that can be transferred across the external memory interface within a second. It is worked out by multiplying the card's bus width by its memory clock speed. If the card has DDR memory, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly record to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on quite a few other factors, especially 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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