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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 speed of 999 MHz. It also uses a 448-bit bus, and uses a 55 nm design. It features 216 SPUs, 72 Texture Address Units, and 28 Raster Operation Units.

Compare that to the Radeon HD 7870, which makes use of a 28 nm design. AMD has set the core frequency at 1000 MHz. The GDDR5 RAM works at a frequency of 1200 MHz on this card. It features 1280 SPUs along with 80 Texture Address Units and 32 ROPs.

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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

In theory, the Radeon HD 7870 should perform quite a bit faster 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 quite a bit (about 93%) better at anisotropic 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 much (about 98%) more effective at FSAA than the GeForce GTX 260 216SP 55 nm, and also will be able to handle higher resolutions without losing too much performance. (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

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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: Memory bandwidth is the largest amount of data (measured in megabytes per second) that can be transferred past the external memory interface in one second. It's calculated by multiplying the bus width by the speed of its memory. If it uses DDR RAM, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

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