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GeForce GTX 470 vs Radeon HD 6850

Intro

The GeForce GTX 470 comes with a clock speed of 607 MHz and a GDDR5 memory speed of 837 MHz. It also uses a 320-bit bus, and makes use of a 40 nm design. It features 448 SPUs, 56 TAUs, and 40 Raster Operation Units.

Compare those specs to the Radeon HD 6850, which comes with a core clock frequency of 775 MHz and a GDDR5 memory speed of 1000 MHz. It also uses a 256-bit memory bus, and makes use of a 40 nm design. It is made up of 960 SPUs, 48 TAUs, and 32 Raster Operation 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 470 2937 points
Radeon HD 6850 2395 points
Difference: 542 (23%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6850 127 Watts
GeForce GTX 470 215 Watts
Difference: 88 Watts (69%)

Memory Bandwidth

The GeForce GTX 470 should in theory perform just a bit faster than the Radeon HD 6850 in general. (explain)

GeForce GTX 470 133920 MB/sec
Radeon HD 6850 128000 MB/sec
Difference: 5920 (5%)

Texel Rate

The Radeon HD 6850 will be just a bit (about 9%) better at texture filtering than the GeForce GTX 470. (explain)

Radeon HD 6850 37200 Mtexels/sec
GeForce GTX 470 33992 Mtexels/sec
Difference: 3208 (9%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon HD 6850 is a better choice, but it probably won't make a huge difference. (explain)

Radeon HD 6850 24800 Mpixels/sec
GeForce GTX 470 24280 Mpixels/sec
Difference: 520 (2%)

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 6850

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 6850
Manufacturer nVidia AMD
Year March 2010 October 2010
Code Name GF100 Barts Pro
Memory 1280 MB 1024 MB
Core Speed 607 MHz 775 MHz
Memory Speed 3348 MHz 4000 MHz
Power (Max TDP) 215 watts 127 watts
Bandwidth 133920 MB/sec 128000 MB/sec
Texel Rate 33992 Mtexels/sec 37200 Mtexels/sec
Pixel Rate 24280 Mpixels/sec 24800 Mpixels/sec
Unified Shaders 448 960
Texture Mapping Units 56 48
Render Output Units 40 32
Bus Type GDDR5 GDDR5
Bus Width 320-bit 256-bit
Fab Process 40 nm 40 nm
Transistors 3000 million 1700 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 information (in units of MB per second) that can be transported over the external memory interface in a second. The number is calculated by multiplying the card's bus width by the speed of its memory. If the card has DDR type RAM, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, 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 number of texture map elements (texels) that can be applied in one second. This figure is worked out by multiplying the total amount of texture units by the core clock 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 in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly record to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs by the clock 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 fill rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

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GeForce GTX 470

Amazon.com

Check prices at:

Radeon HD 6850

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

3 Responses to “GeForce GTX 470 vs Radeon HD 6850”
Sustituto al portatil - APPInformatica.com says:

[...] [...]

99ako says:

Radeon HD 6850 is better

logan says:

I have both cards and I can say without a doubt that the GTX470 is noticably faster, as well as being able to handle high resolutions better and being better at antialiasing. I must run most games a whole tier lower for graphics settings on the radeon card (I.e. medium for the 6850, whereas the 470 can handle high for the same game)

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