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GeForce GTX 295 vs Radeon HD 7970

Intro

The GeForce GTX 295 features a clock frequency of 576 MHz and a GDDR3 memory frequency of 999 MHz. It also features a 448-bit bus, and makes use of a 55 nm design. It features 240 SPUs, 80 Texture Address Units, and 28 Raster Operation Units.

Compare those specs to the Radeon HD 7970, which features GPU core speed of 925 MHz, and 3072 MB of GDDR5 memory running at 1375 MHz through a 384-bit bus. It also is made up of 2048 SPUs, 128 TAUs, and 32 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7970 250 Watts
GeForce GTX 295 289 Watts
Difference: 39 Watts (16%)

Memory Bandwidth

The Radeon HD 7970, in theory, should perform a small bit faster than the GeForce GTX 295 overall. (explain)

Radeon HD 7970 264000 MB/sec
GeForce GTX 295 223776 MB/sec
Difference: 40224 (18%)

Texel Rate

The Radeon HD 7970 should be quite a bit (more or less 28%) more effective at AF than the GeForce GTX 295. (explain)

Radeon HD 7970 118400 Mtexels/sec
GeForce GTX 295 92160 Mtexels/sec
Difference: 26240 (28%)

Pixel Rate

If using a high resolution is important to you, then the GeForce GTX 295 is the winner, but only just. (explain)

GeForce GTX 295 32256 Mpixels/sec
Radeon HD 7970 29600 Mpixels/sec
Difference: 2656 (9%)

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 295

Amazon.com

Check prices at:

Radeon HD 7970

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 295 Radeon HD 7970
Manufacturer nVidia AMD
Year January 8, 2009 January 2012
Code Name G200b Tahiti XT
Memory 896 MB (x2) 3072 MB
Core Speed 576 MHz (x2) 925 MHz
Memory Speed 1998 MHz (x2) 5500 MHz
Power (Max TDP) 289 watts 250 watts
Bandwidth 223776 MB/sec 264000 MB/sec
Texel Rate 92160 Mtexels/sec 118400 Mtexels/sec
Pixel Rate 32256 Mpixels/sec 29600 Mpixels/sec
Unified Shaders 240 (x2) 2048
Texture Mapping Units 80 (x2) 128
Render Output Units 28 (x2) 32
Bus Type GDDR3 GDDR5
Bus Width 448-bit (x2) 384-bit
Fab Process 55 nm 28 nm
Transistors 1400 million 4313 million
Bus PCIe x16 2.0 PCIe 3.0 x16
DirectX Version DirectX 10 DirectX 11.1
OpenGL Version OpenGL 3.1 OpenGL 4.2

Memory Bandwidth: Bandwidth is the maximum amount of data (measured in MB per second) that can be transported across the external memory interface in a second. It is worked out by multiplying the interface width by its memory clock speed. In the case of 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 faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied per second. This figure is worked out by multiplying the total number of texture units by the core 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 applied in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly write to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

Hide Prices

GeForce GTX 295

Amazon.com

Check prices at:

Radeon HD 7970

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.

Comments

3 Responses to “GeForce GTX 295 vs Radeon HD 7970”
Anonymous says:

gtx 295 still holds its weight up to the 580!

Ricardo says:

@ Anonymous, do you have first-hand experience of the two? Because you can't base it on the data for the GTX 295 in this site's GPU comparison database. According to this information the GTX 295 is the second best card in the world, beating all but the HD 7970. Just test it against any GPU above and you will see what I mean. I hope they will rectify the site soon.

dean says:

This is why I haven't upgraded in 4 yearsi love my GTX295, we're still stuck on DX9 graphics, and can't wait till the Xbox one and ps4 gets released we will see all dx11 graphics then NO REASON TO UPGRADE YET

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