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GeForce GTX 570 vs Radeon HD 4890 2GB

Intro

The GeForce GTX 570 features clock speeds of 732 MHz on the GPU, and 950 MHz on the 1280 MB of GDDR5 RAM. It features 480 SPUs as well as 60 TAUs and 40 Rasterization Operator Units.

Compare those specifications to the Radeon HD 4890 2GB, which comes with GPU core speed of 1000 MHz, and 2048 MB of GDDR5 RAM set to run at 975 MHz through a 256-bit bus. It also is comprised of 800(160x5) Stream Processors, 40 Texture Address Units, and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4890 2GB 190 Watts
GeForce GTX 570 219 Watts
Difference: 29 Watts (15%)

Memory Bandwidth

The GeForce GTX 570 should in theory perform a lot faster than the Radeon HD 4890 2GB overall. (explain)

GeForce GTX 570 152000 MB/sec
Radeon HD 4890 2GB 124800 MB/sec
Difference: 27200 (22%)

Texel Rate

The GeForce GTX 570 is a little bit (more or less 10%) better at AF than the Radeon HD 4890 2GB. (explain)

GeForce GTX 570 43920 Mtexels/sec
Radeon HD 4890 2GB 40000 Mtexels/sec
Difference: 3920 (10%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce GTX 570 is a better choice, by a large margin. (explain)

GeForce GTX 570 29280 Mpixels/sec
Radeon HD 4890 2GB 16000 Mpixels/sec
Difference: 13280 (83%)

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 570

Amazon.com

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Radeon HD 4890 2GB

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 570 Radeon HD 4890 2GB
Manufacturer nVidia AMD
Year December 2010 Apr 2, 2009
Code Name GF110 RV790 XT
Memory 1280 MB 2048 MB
Core Speed 732 MHz 1000 MHz
Memory Speed 3800 MHz 3900 MHz
Power (Max TDP) 219 watts 190 watts
Bandwidth 152000 MB/sec 124800 MB/sec
Texel Rate 43920 Mtexels/sec 40000 Mtexels/sec
Pixel Rate 29280 Mpixels/sec 16000 Mpixels/sec
Unified Shaders 480 800(160x5)
Texture Mapping Units 60 40
Render Output Units 40 16
Bus Type GDDR5 GDDR5
Bus Width 320-bit 256-bit
Fab Process 40 nm 55 nm
Transistors 3000 million 959 million
Bus PCIe x16 PCIe 2.0 x16
DirectX Version DirectX 11 DirectX 10.1
OpenGL Version OpenGL 4.1 OpenGL 3.0

Memory Bandwidth: Bandwidth is the max amount of information (measured in megabytes per second) that can be moved past the external memory interface in a second. It is worked out by multiplying the interface width by its memory clock speed. If it uses DDR type memory, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed in one second. This is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The better the texel rate, the better the 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 maximum amount of pixels the video card could possibly write to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Raster Operations Pipelines 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 quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

Hide Prices

GeForce GTX 570

Amazon.com

Check prices at:

Radeon HD 4890 2GB

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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