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GeForce GTX 260 216SP 55 nm vs Radeon HD 6850

Intro

The GeForce GTX 260 216SP 55 nm features a core clock frequency of 576 MHz and a GDDR3 memory speed of 999 MHz. It also features a 448-bit memory bus, and uses a 55 nm design. It is made up of 216 SPUs, 72 Texture Address Units, and 28 ROPs.

Compare those specifications to the Radeon HD 6850, which comes with core clock speeds of 775 MHz on the GPU, and 1000 MHz on the 1024 MB of GDDR5 RAM. It features 960 SPUs along with 48 Texture Address Units and 32 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6850 127 Watts
GeForce GTX 260 216SP 55 nm 171 Watts
Difference: 44 Watts (35%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 6850 will be 14% quicker than the GeForce GTX 260 216SP 55 nm overall, because of its greater bandwidth. (explain)

Radeon HD 6850 128000 MB/sec
GeForce GTX 260 216SP 55 nm 111888 MB/sec
Difference: 16112 (14%)

Texel Rate

The GeForce GTX 260 216SP 55 nm is just a bit (approximately 11%) better at AF than the Radeon HD 6850. (explain)

GeForce GTX 260 216SP 55 nm 41472 Mtexels/sec
Radeon HD 6850 37200 Mtexels/sec
Difference: 4272 (11%)

Pixel Rate

The Radeon HD 6850 is quite a bit (about 54%) more effective at anti-aliasing than the GeForce GTX 260 216SP 55 nm, and able to handle higher resolutions more effectively. (explain)

Radeon HD 6850 24800 Mpixels/sec
GeForce GTX 260 216SP 55 nm 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 216SP 55 nm

Amazon.com

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Radeon HD 6850

Amazon.com

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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 216SP 55 nm Radeon HD 6850
Manufacturer nVidia AMD
Year December 22, 2008 October 2010
Code Name G200b Barts Pro
Memory 896 MB 1024 MB
Core Speed 576 MHz 775 MHz
Memory Speed 1998 MHz 4000 MHz
Power (Max TDP) 171 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 55 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 megabytes per second) that can be moved past the external memory interface in a second. The number is calculated by multiplying the card's interface 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 anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied in one second. This number is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The higher this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly write to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

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GeForce GTX 260 216SP 55 nm

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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