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GeForce GTX 590 vs Radeon HD 7870 XT

Intro

The GeForce GTX 590 comes with a clock speed of 607 MHz and a GDDR5 memory speed of 855 MHz. It also uses a 384-bit bus, and makes use of a 40 nm design. It is comprised of 512 SPUs, 64 Texture Address Units, and 48 Raster Operation Units.

Compare those specs to the Radeon HD 7870 XT, which has core speeds of 925 MHz on the GPU, and 1500 MHz on the 2048 MB of GDDR5 RAM. It features 1536 SPUs as well as 96 Texture Address Units and 32 Rasterization Operator Units.

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

GeForce GTX 590 6680 points
Radeon HD 7870 XT 6390 points
Difference: 290 (5%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7870 XT 185 Watts
GeForce GTX 590 365 Watts
Difference: 180 Watts (97%)

Memory Bandwidth

In theory, the GeForce GTX 590 should be quite a bit faster than the Radeon HD 7870 XT overall. (explain)

GeForce GTX 590 328320 MB/sec
Radeon HD 7870 XT 192000 MB/sec
Difference: 136320 (71%)

Texel Rate

The Radeon HD 7870 XT will be just a bit (approximately 14%) better at texture filtering than the GeForce GTX 590. (explain)

Radeon HD 7870 XT 88800 Mtexels/sec
GeForce GTX 590 77696 Mtexels/sec
Difference: 11104 (14%)

Pixel Rate

The GeForce GTX 590 is quite a bit (approximately 97%) more effective at full screen anti-aliasing than the Radeon HD 7870 XT, and able to handle higher screen resolutions without slowing down too much. (explain)

GeForce GTX 590 58272 Mpixels/sec
Radeon HD 7870 XT 29600 Mpixels/sec
Difference: 28672 (97%)

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 590

Amazon.com

Check prices at:

Radeon HD 7870 XT

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 590 Radeon HD 7870 XT
Manufacturer nVidia AMD
Year March 2011 November 2012
Code Name GF110 Tahiti LE
Memory 1536 MB (x2) 2048 MB
Core Speed 607 MHz (x2) 925 MHz
Memory Speed 3420 MHz (x2) 6000 MHz
Power (Max TDP) 365 watts 185 watts
Bandwidth 328320 MB/sec 192000 MB/sec
Texel Rate 77696 Mtexels/sec 88800 Mtexels/sec
Pixel Rate 58272 Mpixels/sec 29600 Mpixels/sec
Unified Shaders 512 (x2) 1536
Texture Mapping Units 64 (x2) 96
Render Output Units 48 (x2) 32
Bus Type GDDR5 GDDR5
Bus Width 384-bit (x2) 256-bit
Fab Process 40 nm 28 nm
Transistors 3000 million 4313 million
Bus PCIe 2.0 x16 PCIe 3.0 x16
DirectX Version DirectX 11 DirectX 11.1
OpenGL Version OpenGL 4.1 OpenGL 4.3

Memory Bandwidth: Memory bandwidth is the maximum amount of information (measured in megabytes per second) that can be moved over the external memory interface in a second. It is calculated by multiplying the bus width by the speed of its memory. In the case of DDR RAM, the result should be multiplied by 2 again. If it uses 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 higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied per second. This is worked out by multiplying the total amount of texture units by the core speed of the chip. The better the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly write to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of colour ROPs by the the core clock speed. 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 output rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

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GeForce GTX 590

Amazon.com

Check prices at:

Radeon HD 7870 XT

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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