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GeForce GTX 470 vs Radeon HD 6950 2GB

Intro

The GeForce GTX 470 comes with a GPU core speed of 607 MHz, and the 1280 MB of GDDR5 memory is set to run at 837 MHz through a 320-bit bus. It also is comprised of 448 Stream Processors, 56 TAUs, and 40 ROPs.

Compare those specifications to the Radeon HD 6950 2GB, which features a core clock speed of 800 MHz and a GDDR5 memory frequency of 1250 MHz. It also makes use of a 256-bit memory bus, and makes use of a 40 nm design. It is comprised of 1408 SPUs, 88 TAUs, and 32 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6950 2GB 200 Watts
GeForce GTX 470 215 Watts
Difference: 15 Watts (8%)

Memory Bandwidth

The Radeon HD 6950 2GB, in theory, should perform a bit faster than the GeForce GTX 470 in general. (explain)

Radeon HD 6950 2GB 160000 MB/sec
GeForce GTX 470 133920 MB/sec
Difference: 26080 (19%)

Texel Rate

The Radeon HD 6950 2GB will be quite a bit (more or less 107%) better at anisotropic filtering than the GeForce GTX 470. (explain)

Radeon HD 6950 2GB 70400 Mtexels/sec
GeForce GTX 470 33992 Mtexels/sec
Difference: 36408 (107%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon HD 6950 2GB is the winner, though only just barely. (explain)

Radeon HD 6950 2GB 25600 Mpixels/sec
GeForce GTX 470 24280 Mpixels/sec
Difference: 1320 (5%)

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 470

Amazon.com

Check prices at:

Radeon HD 6950 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 470 Radeon HD 6950 2GB
Manufacturer nVidia AMD
Year March 2010 December 2010
Code Name GF100 Cayman Pro
Memory 1280 MB 2048 MB
Core Speed 607 MHz 800 MHz
Memory Speed 3348 MHz 5000 MHz
Power (Max TDP) 215 watts 200 watts
Bandwidth 133920 MB/sec 160000 MB/sec
Texel Rate 33992 Mtexels/sec 70400 Mtexels/sec
Pixel Rate 24280 Mpixels/sec 25600 Mpixels/sec
Unified Shaders 448 1408
Texture Mapping Units 56 88
Render Output Units 40 32
Bus Type GDDR5 GDDR5
Bus Width 320-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 transported across the external memory interface within a second. It is worked out by multiplying the card's interface width by the speed of its memory. If the card has DDR memory, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of 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 number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka 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, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

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GeForce GTX 470

Amazon.com

Check prices at:

Radeon HD 6950 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.

Comments

One Response to “GeForce GTX 470 vs Radeon HD 6950 2GB”
graphics card says:

[...] permalink Howdy! I choyce whould be in 250$ range some ATI HD6950 2GB version. Its more powerful than GTX470. Here is some tests: http://www.hwcompare.com/8625/geforc...n-hd-6950-2gb/ [...]

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