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GeForce GTX 460 1GB vs Radeon HD 7790

Intro

The GeForce GTX 460 1GB has a GPU clock speed of 675 MHz, and the 1024 MB of GDDR5 memory is set to run at 900 MHz through a 256-bit bus. It also is comprised of 336 SPUs, 56 Texture Address Units, and 32 Raster Operation Units.

Compare those specs to the Radeon HD 7790, which comes with GPU clock speed of 1000 MHz, and 1024 MB of GDDR5 memory running at 1500 MHz through a 128-bit bus. It also features 896 SPUs, 56 TAUs, and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7790 85 Watts
GeForce GTX 460 1GB 160 Watts
Difference: 75 Watts (88%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 460 1GB should perform a small bit faster than the Radeon HD 7790 in general. (explain)

GeForce GTX 460 1GB 115200 MB/sec
Radeon HD 7790 96000 MB/sec
Difference: 19200 (20%)

Texel Rate

The Radeon HD 7790 is quite a bit (approximately 48%) more effective at texture filtering than the GeForce GTX 460 1GB. (explain)

Radeon HD 7790 56000 Mtexels/sec
GeForce GTX 460 1GB 37800 Mtexels/sec
Difference: 18200 (48%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce GTX 460 1GB is superior to the Radeon HD 7790, by far. (explain)

GeForce GTX 460 1GB 21600 Mpixels/sec
Radeon HD 7790 16000 Mpixels/sec
Difference: 5600 (35%)

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 1GB

Amazon.com

Check prices at:

Radeon HD 7790

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 1GB Radeon HD 7790
Manufacturer nVidia AMD
Year July 2010 March 2013
Code Name GF104 Bonaire XT
Memory 1024 MB 1024 MB
Core Speed 675 MHz 1000 MHz
Memory Speed 3600 MHz 6000 MHz
Power (Max TDP) 160 watts 85 watts
Bandwidth 115200 MB/sec 96000 MB/sec
Texel Rate 37800 Mtexels/sec 56000 Mtexels/sec
Pixel Rate 21600 Mpixels/sec 16000 Mpixels/sec
Unified Shaders 336 896
Texture Mapping Units 56 56
Render Output Units 32 16
Bus Type GDDR5 GDDR5
Bus Width 256-bit 128-bit
Fab Process 40 nm 28 nm
Transistors 1950 million 2080 million
Bus PCIe x16 PCIe 3.0 x16
DirectX Version DirectX 11 DirectX 11.1
OpenGL Version OpenGL 4.1 OpenGL 4.3

Memory Bandwidth: Bandwidth is the max amount of data (in units of megabytes per second) that can be transported past the external memory interface within a second. It's worked out by multiplying the interface width by its memory clock speed. In the case of DDR type RAM, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied per second. This figure is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The better this number, the better the 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 most pixels that the graphics card could 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 - also called Render Output Units) are responsible for filling the screen with pixels (the image). 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 reach the maximum fill rate.

Display Prices

Hide Prices

GeForce GTX 460 1GB

Amazon.com

Check prices at:

Radeon HD 7790

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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