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GeForce GTX 470 vs Radeon HD 6850

Intro

The GeForce GTX 470 features a GPU core clock 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 Texture Address Units, and 40 Raster Operation Units.

Compare that to the Radeon HD 6850, which comes with GPU core speed of 775 MHz, and 1024 MB of GDDR5 memory running at 1000 MHz through a 256-bit bus. It also features 960 SPUs, 48 TAUs, and 32 ROPs.

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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

In theory, the GeForce GTX 470 should be just a bit faster than the Radeon HD 6850 overall. (explain)

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

Texel Rate

The Radeon HD 6850 is a bit (more or less 9%) faster with regards to 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

The Radeon HD 6850 will be just a bit (about 2%) better at full screen anti-aliasing than the GeForce GTX 470, and also should be able to handle higher resolutions better. (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: Bandwidth is the largest amount of information (in units of MB per second) that can be transported across the external memory interface in a second. It is calculated by multiplying the bus width by its memory speed. If the card has DDR type RAM, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied per second. This number is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the video 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 the video card can possibly write to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum 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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