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GeForce GTX 480 vs Radeon HD 6970

Intro

The GeForce GTX 480 has a GPU core speed of 700 MHz, and the 1536 MB of GDDR5 RAM is set to run at 924 MHz through a 384-bit bus. It also features 480 Stream Processors, 60 Texture Address Units, and 48 ROPs.

Compare that to the Radeon HD 6970, which has core clock speeds of 880 MHz on the GPU, and 1375 MHz on the 2048 MB of GDDR5 RAM. It features 1536 SPUs as well as 96 TAUs 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 480 3650 points
Radeon HD 6970 3470 points
Difference: 180 (5%)

Power Usage and Theoretical Benchmarks

Both cards have the same power consumption.

Memory Bandwidth

In theory, the GeForce GTX 480 should be 1% faster than the Radeon HD 6970 overall, due to its higher data rate. (explain)

GeForce GTX 480 177408 MB/sec
Radeon HD 6970 176000 MB/sec
Difference: 1408 (1%)

Texel Rate

The Radeon HD 6970 will be quite a bit (about 101%) faster with regards to anisotropic filtering than the GeForce GTX 480. (explain)

Radeon HD 6970 84480 Mtexels/sec
GeForce GTX 480 42000 Mtexels/sec
Difference: 42480 (101%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce GTX 480 is a better choice, though not by far. (explain)

GeForce GTX 480 33600 Mpixels/sec
Radeon HD 6970 28160 Mpixels/sec
Difference: 5440 (19%)

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 480

Amazon.com

Check prices at:

Radeon HD 6970

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 480 Radeon HD 6970
Manufacturer nVidia AMD
Year March 2010 December 2010
Code Name GF100 Cayman XT
Memory 1536 MB 2048 MB
Core Speed 700 MHz 880 MHz
Memory Speed 3696 MHz 5500 MHz
Power (Max TDP) 250 watts 250 watts
Bandwidth 177408 MB/sec 176000 MB/sec
Texel Rate 42000 Mtexels/sec 84480 Mtexels/sec
Pixel Rate 33600 Mpixels/sec 28160 Mpixels/sec
Unified Shaders 480 1536
Texture Mapping Units 60 96
Render Output Units 48 32
Bus Type GDDR5 GDDR5
Bus Width 384-bit 256-bit
Fab Process 40 nm 40 nm
Transistors 3000 million 2640 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 largest amount of data (counted in MB per second) that can be moved over the external memory interface in a second. The number is worked out by multiplying the card's bus width by its memory clock speed. If it uses DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the bandwidth is, 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 texture map elements (texels) that can be processed per second. This figure is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The better the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly record to its local memory in one 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 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 of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

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GeForce GTX 480

Amazon.com

Check prices at:

Radeon HD 6970

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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