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GeForce GTX 260 Core 216 vs Radeon HD 6850

Intro

The GeForce GTX 260 Core 216 uses a 65 nm design. nVidia has set the core frequency at 576 MHz. The GDDR3 RAM is set to run at a frequency of 999 MHz on this particular model. It features 216 SPUs along with 72 Texture Address Units and 28 Rasterization Operator Units.

Compare that to the Radeon HD 6850, which has GPU clock speed of 775 MHz, and 1024 MB of GDDR5 memory running at 1000 MHz through a 256-bit bus. It also features 960 Stream Processors, 48 Texture Address Units, and 32 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6850 127 Watts
GeForce GTX 260 Core 216 202 Watts
Difference: 75 Watts (59%)

Memory Bandwidth

In theory, the Radeon HD 6850 should perform a bit faster than the GeForce GTX 260 Core 216 in general. (explain)

Radeon HD 6850 128000 MB/sec
GeForce GTX 260 Core 216 111888 MB/sec
Difference: 16112 (14%)

Texel Rate

The GeForce GTX 260 Core 216 will be a small bit (more or less 11%) faster with regards to AF than the Radeon HD 6850. (explain)

GeForce GTX 260 Core 216 41472 Mtexels/sec
Radeon HD 6850 37200 Mtexels/sec
Difference: 4272 (11%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Radeon HD 6850 is the winner, by far. (explain)

Radeon HD 6850 24800 Mpixels/sec
GeForce GTX 260 Core 216 16128 Mpixels/sec
Difference: 8672 (54%)

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 260 Core 216

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 260 Core 216 Radeon HD 6850
Manufacturer nVidia AMD
Year September 16, 2008 October 2010
Code Name G200 Barts Pro
Memory 896 MB 1024 MB
Core Speed 576 MHz 775 MHz
Memory Speed 1998 MHz 4000 MHz
Power (Max TDP) 202 watts 127 watts
Bandwidth 111888 MB/sec 128000 MB/sec
Texel Rate 41472 Mtexels/sec 37200 Mtexels/sec
Pixel Rate 16128 Mpixels/sec 24800 Mpixels/sec
Unified Shaders 216 960
Texture Mapping Units 72 48
Render Output Units 28 32
Bus Type GDDR3 GDDR5
Bus Width 448-bit 256-bit
Fab Process 65 nm 40 nm
Transistors 1400 million 1700 million
Bus PCIe x16 2.0 PCIe x16
DirectX Version DirectX 10 DirectX 11
OpenGL Version OpenGL 3.1 OpenGL 4.1

Memory Bandwidth: Bandwidth is the max amount of information (in units of MB per second) that can be transported past the external memory interface in a second. The number is calculated by multiplying the card's bus width by its memory clock speed. If the card has DDR RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied in one second. This is calculated by multiplying the total texture units by the core clock speed of the chip. The better this number, the better the 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 could possibly write to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

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GeForce GTX 260 Core 216

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.

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