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GeForce GTX 260 216SP 55 nm vs Radeon HD 4790

Intro

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

Compare that to the Radeon HD 4790, which comes with a core clock frequency of 600 MHz and a GDDR5 memory frequency of 800 MHz. It also makes use of a 256-bit bus, and uses a 55 nm design. It features 640(128x5) SPUs, 32 Texture Address Units, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

The GeForce GTX 260 216SP 55 nm should theoretically perform a bit faster than the Radeon HD 4790 in general. (explain)

GeForce GTX 260 216SP 55 nm 111888 MB/sec
Radeon HD 4790 102400 MB/sec
Difference: 9488 (9%)

Texel Rate

The GeForce GTX 260 216SP 55 nm will be much (more or less 116%) better at anisotropic filtering than the Radeon HD 4790. (explain)

GeForce GTX 260 216SP 55 nm 41472 Mtexels/sec
Radeon HD 4790 19200 Mtexels/sec
Difference: 22272 (116%)

Pixel Rate

The GeForce GTX 260 216SP 55 nm is a lot (more or less 68%) faster with regards to anti-aliasing than the Radeon HD 4790, and also should be capable of handling higher resolutions without slowing down too much. (explain)

GeForce GTX 260 216SP 55 nm 16128 Mpixels/sec
Radeon HD 4790 9600 Mpixels/sec
Difference: 6528 (68%)

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 4790

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 4790
Manufacturer nVidia AMD
Year December 22, 2008 2009
Code Name G200b RV790
Memory 896 MB 512 MB
Core Speed 576 MHz 600 MHz
Memory Speed 1998 MHz 3200 MHz
Power (Max TDP) 171 watts (Unknown) watts
Bandwidth 111888 MB/sec 102400 MB/sec
Texel Rate 41472 Mtexels/sec 19200 Mtexels/sec
Pixel Rate 16128 Mpixels/sec 9600 Mpixels/sec
Unified Shaders 216 640(128x5)
Texture Mapping Units 72 32
Render Output Units 28 16
Bus Type GDDR3 GDDR5
Bus Width 448-bit 256-bit
Fab Process 55 nm 55 nm
Transistors 1400 million 959 million
Bus PCIe x16 2.0 PCIe 2.0 x16
DirectX Version DirectX 10 DirectX 10.1
OpenGL Version OpenGL 3.1 OpenGL 3.0

Memory Bandwidth: Bandwidth is the largest amount of information (measured in MB per second) that can be transferred past the external memory interface within a second. It's worked out by multiplying the interface width by its memory speed. If the card has DDR type memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the card's 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 number of texture map elements (texels) that are applied in one second. This figure is calculated by multiplying the total texture units of the card by the core speed of the chip. The better the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly record to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.

Display Prices

Hide Prices

GeForce GTX 260 216SP 55 nm

Amazon.com

Check prices at:

Radeon HD 4790

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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