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GeForce GTX 580 3GB vs Radeon R9 270X

Intro

The GeForce GTX 580 3GB has a core clock speed of 772 MHz and a GDDR5 memory frequency of 1002 MHz. It also features a 384-bit bus, and uses a 40 nm design. It is comprised of 512 SPUs, 64 TAUs, and 48 ROPs.

Compare all that to the Radeon R9 270X, which features a clock speed of 1000 MHz and a GDDR5 memory speed of 1400 MHz. It also features a 256-bit bus, and uses a 28 nm design. It is made up of 1280 SPUs, 80 Texture Address Units, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 270X 180 Watts
GeForce GTX 580 3GB 244 Watts
Difference: 64 Watts (36%)

Memory Bandwidth

Theoretically, the GeForce GTX 580 3GB should perform just a bit faster than the Radeon R9 270X overall. (explain)

GeForce GTX 580 3GB 192384 MB/sec
Radeon R9 270X 179200 MB/sec
Difference: 13184 (7%)

Texel Rate

The Radeon R9 270X is much (about 62%) more effective at AF than the GeForce GTX 580 3GB. (explain)

Radeon R9 270X 80000 Mtexels/sec
GeForce GTX 580 3GB 49408 Mtexels/sec
Difference: 30592 (62%)

Pixel Rate

The GeForce GTX 580 3GB will be just a bit (about 16%) more effective at anti-aliasing than the Radeon R9 270X, and also should be able to handle higher screen resolutions while still performing well. (explain)

GeForce GTX 580 3GB 37056 Mpixels/sec
Radeon R9 270X 32000 Mpixels/sec
Difference: 5056 (16%)

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.

Price Comparison

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GeForce GTX 580 3GB

Amazon.com

Check prices at:

Radeon R9 270X

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 580 3GB Radeon R9 270X
Manufacturer nVidia AMD
Year November 2010 October 2013
Code Name GF110 Curacao XT
Memory 3072 MB 2048 MB
Core Speed 772 MHz 1000 MHz
Memory Speed 4008 MHz 5600 MHz
Power (Max TDP) 244 watts 180 watts
Bandwidth 192384 MB/sec 179200 MB/sec
Texel Rate 49408 Mtexels/sec 80000 Mtexels/sec
Pixel Rate 37056 Mpixels/sec 32000 Mpixels/sec
Unified Shaders 512 1280
Texture Mapping Units 64 80
Render Output Units 48 32
Bus Type GDDR5 GDDR5
Bus Width 384-bit 256-bit
Fab Process 40 nm 28 nm
Transistors 3000 million 2800 million
Bus PCIe x16 PCIe 3.0 x16
DirectX Version DirectX 11 DirectX 11.2
OpenGL Version OpenGL 4.1 OpenGL 4.3

Memory Bandwidth: Memory bandwidth is the max amount of information (in units of megabytes per second) that can be moved over the external memory interface in a second. The number is calculated by multiplying the card's interface width by its memory speed. If it uses DDR memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, 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 number of texture map elements (texels) that can be processed in one second. This figure is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The higher this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly record to the local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

Hide Prices

GeForce GTX 580 3GB

Amazon.com

Check prices at:

Radeon R9 270X

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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