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GeForce GTX 460 SE vs Radeon HD 6790

Intro

The GeForce GTX 460 SE uses a 40 nm design. nVidia has clocked the core speed at 650 MHz. The GDDR5 RAM runs at a frequency of 850 MHz on this specific model. It features 288 SPUs along with 48 Texture Address Units and 32 ROPs.

Compare all of that to the Radeon HD 6790, which has GPU clock speed of 840 MHz, and 1024 MB of GDDR5 memory running at 1050 MHz through a 256-bit bus. It also is comprised of 800 Stream Processors, 40 TAUs, and 16 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Both cards have the same power consumption.

Memory Bandwidth

Theoretically speaking, the Radeon HD 6790 is 24% faster than the GeForce GTX 460 SE in general, because of its greater bandwidth. (explain)

Radeon HD 6790 134400 MB/sec
GeForce GTX 460 SE 108800 MB/sec
Difference: 25600 (24%)

Texel Rate

The Radeon HD 6790 is a small bit (approximately 8%) faster with regards to AF than the GeForce GTX 460 SE. (explain)

Radeon HD 6790 33600 Mtexels/sec
GeForce GTX 460 SE 31200 Mtexels/sec
Difference: 2400 (8%)

Pixel Rate

The GeForce GTX 460 SE should be quite a bit (about 55%) better at anti-aliasing than the Radeon HD 6790, and capable of handling higher screen resolutions without slowing down too much. (explain)

GeForce GTX 460 SE 20800 Mpixels/sec
Radeon HD 6790 13440 Mpixels/sec
Difference: 7360 (55%)

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 460 SE

Amazon.com

Check prices at:

Radeon HD 6790

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 460 SE Radeon HD 6790
Manufacturer nVidia AMD
Year November 2010 April 2011
Code Name GF104 Barts LE
Memory 1024 MB 1024 MB
Core Speed 650 MHz 840 MHz
Memory Speed 3400 MHz 4200 MHz
Power (Max TDP) 150 watts 150 watts
Bandwidth 108800 MB/sec 134400 MB/sec
Texel Rate 31200 Mtexels/sec 33600 Mtexels/sec
Pixel Rate 20800 Mpixels/sec 13440 Mpixels/sec
Unified Shaders 288 800
Texture Mapping Units 48 40
Render Output Units 32 16
Bus Type GDDR5 GDDR5
Bus Width 256-bit 256-bit
Fab Process 40 nm 40 nm
Transistors 1950 million 1700 million
Bus PCIe x16 PCIe 2.1 x16
DirectX Version DirectX 11 DirectX 11
OpenGL Version OpenGL 4.1 OpenGL 4.1

Memory Bandwidth: Bandwidth is the maximum amount of information (in units of megabytes per second) that can be transferred over the external memory interface within a second. It is calculated by multiplying the interface 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 ANOTHER 2x. 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 number of texture map elements (texels) that are processed in one second. This is worked out by multiplying the total amount of texture units of the card by the core clock speed of the chip. The better this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly record to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on lots of 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 460 SE

Amazon.com

Check prices at:

Radeon HD 6790

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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