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GeForce GTX 260 216SP 55 nm vs Radeon HD 7870

Intro

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

Compare that to the Radeon HD 7870, which features GPU core speed of 1000 MHz, and 2048 MB of GDDR5 memory running at 1200 MHz through a 256-bit bus. It also is made up of 1280 SPUs, 80 Texture Address Units, and 32 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 260 216SP 55 nm 171 Watts
Radeon HD 7870 175 Watts
Difference: 4 Watts (2%)

Memory Bandwidth

Performance-wise, the Radeon HD 7870 should theoretically be much better than the GeForce GTX 260 216SP 55 nm in general. (explain)

Radeon HD 7870 153600 MB/sec
GeForce GTX 260 216SP 55 nm 111888 MB/sec
Difference: 41712 (37%)

Texel Rate

The Radeon HD 7870 is a lot (about 93%) better at texture filtering than the GeForce GTX 260 216SP 55 nm. (explain)

Radeon HD 7870 80000 Mtexels/sec
GeForce GTX 260 216SP 55 nm 41472 Mtexels/sec
Difference: 38528 (93%)

Pixel Rate

The Radeon HD 7870 will be quite a bit (more or less 98%) more effective at FSAA than the GeForce GTX 260 216SP 55 nm, and also will be able to handle higher screen resolutions without slowing down too much. (explain)

Radeon HD 7870 32000 Mpixels/sec
GeForce GTX 260 216SP 55 nm 16128 Mpixels/sec
Difference: 15872 (98%)

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 7870

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 7870
Manufacturer nVidia AMD
Year December 22, 2008 March 2012
Code Name G200b Pitcairn XT
Memory 896 MB 2048 MB
Core Speed 576 MHz 1000 MHz
Memory Speed 1998 MHz 4800 MHz
Power (Max TDP) 171 watts 175 watts
Bandwidth 111888 MB/sec 153600 MB/sec
Texel Rate 41472 Mtexels/sec 80000 Mtexels/sec
Pixel Rate 16128 Mpixels/sec 32000 Mpixels/sec
Unified Shaders 216 1280
Texture Mapping Units 72 80
Render Output Units 28 32
Bus Type GDDR3 GDDR5
Bus Width 448-bit 256-bit
Fab Process 55 nm 28 nm
Transistors 1400 million 2800 million
Bus PCIe x16 2.0 PCIe 3.0 x16
DirectX Version DirectX 10 DirectX 11.1
OpenGL Version OpenGL 3.1 OpenGL 4.2

Memory Bandwidth: Bandwidth is the largest amount of data (measured in MB per second) that can be moved over the external memory interface in a second. It is calculated by multiplying the bus width by its memory speed. In the case of DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, 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 amount of texture map elements (texels) that are applied per second. This number is calculated by multiplying the total amount of texture units by the core speed of the chip. The better this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly record to its local memory per 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 drawing the pixels (image) on the screen. The actual pixel rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability 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 7870

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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