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GeForce GTX 580 vs Radeon HD 6770


Intro

The GeForce GTX 580 uses a 40 nm design. nVidia has set the core speed at 772 MHz. The GDDR5 RAM is set to run at a frequency of 1002 MHz on this specific card. It features 512 SPUs as well as 64 TAUs and 48 Rasterization Operator Units.

Compare those specs to the Radeon HD 6770, which features core speeds of 900 MHz on the GPU, and 1050 MHz on the 512 MB of GDDR5 memory. It features 800 SPUs as well as 40 TAUs and 16 Rasterization Operator Units.

Display Graphs

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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 580 4960 points
Radeon HD 6770 1520 points
Difference: 3440 (226%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6770 108 Watts
GeForce GTX 580 244 Watts
Difference: 136 Watts (126%)

Memory Bandwidth

Performance-wise, the GeForce GTX 580 should theoretically be a lot better than the Radeon HD 6770 in general. (explain)

GeForce GTX 580 192384 MB/sec
Radeon HD 6770 67200 MB/sec
Difference: 125184 (186%)

Texel Rate

The GeForce GTX 580 will be much (about 37%) better at AF than the Radeon HD 6770. (explain)

GeForce GTX 580 49408 Mtexels/sec
Radeon HD 6770 36000 Mtexels/sec
Difference: 13408 (37%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GTX 580 is a better choice, by far. (explain)

GeForce GTX 580 37056 Mpixels/sec
Radeon HD 6770 14400 Mpixels/sec
Difference: 22656 (157%)

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

Amazon.com

Radeon HD 6770

Amazon.com

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 Radeon HD 6770
Manufacturer nVidia AMD
Year November 2010 January 2011
Code Name GF110 Juniper XT
Memory 1536 MB 512 MB
Core Speed 772 MHz 900 MHz
Memory Speed 4008 MHz 4200 MHz
Power (Max TDP) 244 watts 108 watts
Bandwidth 192384 MB/sec 67200 MB/sec
Texel Rate 49408 Mtexels/sec 36000 Mtexels/sec
Pixel Rate 37056 Mpixels/sec 14400 Mpixels/sec
Unified Shaders 512 800
Texture Mapping Units 64 40
Render Output Units 48 16
Bus Type GDDR5 GDDR5
Bus Width 384-bit 128-bit
Fab Process 40 nm 40 nm
Transistors 3000 million 1040 million
Bus PCIe x16 PCIe x16
DirectX Version DirectX 11 DirectX 11
OpenGL Version OpenGL 4.1 OpenGL 4.1

Memory Bandwidth: Memory bandwidth is the max amount of data (in units of megabytes per second) that can be moved across the external memory interface in a second. The number is calculated by multiplying the bus width by its memory clock speed. If it uses DDR memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher 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 number of texture map elements (texels) that can be applied in one second. This number is calculated by multiplying the total texture units by the core speed of the chip. The better the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

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

Display Prices

Hide Prices

GeForce GTX 580

Amazon.com

Radeon HD 6770

Amazon.com

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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