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GeForce GTX 260 216SP 55 nm vs Radeon HD 5850

Intro

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

Compare that to the Radeon HD 5850, which makes use of a 40 nm design. AMD has set the core speed at 725 MHz. The GDDR5 RAM works at a frequency of 1000 MHz on this particular model. It features 1440(288x5) SPUs as well as 72 Texture Address Units and 32 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5850 151 Watts
GeForce GTX 260 216SP 55 nm 171 Watts
Difference: 20 Watts (13%)

Memory Bandwidth

In theory, the Radeon HD 5850 should perform just a bit faster than the GeForce GTX 260 216SP 55 nm overall. (explain)

Radeon HD 5850 128000 MB/sec
GeForce GTX 260 216SP 55 nm 111888 MB/sec
Difference: 16112 (14%)

Texel Rate

The Radeon HD 5850 should be much (about 26%) better at anisotropic filtering than the GeForce GTX 260 216SP 55 nm. (explain)

Radeon HD 5850 52200 Mtexels/sec
GeForce GTX 260 216SP 55 nm 41472 Mtexels/sec
Difference: 10728 (26%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon HD 5850 is the winner, by a large margin. (explain)

Radeon HD 5850 23200 Mpixels/sec
GeForce GTX 260 216SP 55 nm 16128 Mpixels/sec
Difference: 7072 (44%)

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

Check prices at:

Radeon HD 5850

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 216SP 55 nm Radeon HD 5850
Manufacturer nVidia AMD
Year December 22, 2008 September 30, 2009
Code Name G200b Cypress PRO
Memory 896 MB 1024 MB
Core Speed 576 MHz 725 MHz
Memory Speed 1998 MHz 4000 MHz
Power (Max TDP) 171 watts 151 watts
Bandwidth 111888 MB/sec 128000 MB/sec
Texel Rate 41472 Mtexels/sec 52200 Mtexels/sec
Pixel Rate 16128 Mpixels/sec 23200 Mpixels/sec
Unified Shaders 216 1440(288x5)
Texture Mapping Units 72 72
Render Output Units 28 32
Bus Type GDDR3 GDDR5
Bus Width 448-bit 256-bit
Fab Process 55 nm 40 nm
Transistors 1400 million 2154 million
Bus PCIe x16 2.0 PCIe 2.1 x16
DirectX Version DirectX 10 DirectX 11
OpenGL Version OpenGL 3.1 OpenGL 3.2

Memory Bandwidth: Memory bandwidth is the max amount of information (in units of MB per second) that can be transferred over the external memory interface in a second. The number is worked out by multiplying the card's bus width by its memory speed. If it uses DDR type RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly write to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.

Display Prices

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GeForce GTX 260 216SP 55 nm

Amazon.com

Check prices at:

Radeon HD 5850

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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