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GeForce GTX 260 Core 216 vs Radeon HD 4790

Intro

The GeForce GTX 260 Core 216 comes with a clock frequency of 576 MHz and a GDDR3 memory frequency of 999 MHz. It also features a 448-bit bus, and uses a 65 nm design. It features 216 SPUs, 72 Texture Address Units, and 28 Raster Operation Units.

Compare that to the Radeon HD 4790, which features clock speeds of 600 MHz on the GPU, and 800 MHz on the 512 MB of GDDR5 memory. It features 640(128x5) SPUs along with 32 TAUs and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Performance-wise, the GeForce GTX 260 Core 216 should theoretically be just a bit better than the Radeon HD 4790 in general. (explain)

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

Texel Rate

The GeForce GTX 260 Core 216 is quite a bit (more or less 116%) more effective at anisotropic filtering than the Radeon HD 4790. (explain)

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

Pixel Rate

The GeForce GTX 260 Core 216 is much (more or less 68%) better at anti-aliasing than the Radeon HD 4790, and capable of handling higher screen resolutions better. (explain)

GeForce GTX 260 Core 216 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 Core 216

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.

Specifications

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Model GeForce GTX 260 Core 216 Radeon HD 4790
Manufacturer nVidia AMD
Year September 16, 2008 2009
Code Name G200 RV790
Memory 896 MB 512 MB
Core Speed 576 MHz 600 MHz
Memory Speed 1998 MHz 3200 MHz
Power (Max TDP) 202 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 65 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: Memory bandwidth is the largest amount of information (counted in MB per second) that can be moved across the external memory interface within a second. It's worked out by multiplying the card's bus width by the speed of its memory. In the case of DDR memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed per second. This figure is calculated by multiplying the total amount of texture units by the core clock speed of the chip. The better the texel rate, 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 most pixels that the graphics chip could possibly write to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

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GeForce GTX 260 Core 216

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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