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GeForce GTX 460 2GB vs Radeon HD 7790

Intro

The GeForce GTX 460 2GB features core clock speeds of 675 MHz on the GPU, and 900 MHz on the 2048 MB of GDDR5 RAM. It features 336 SPUs as well as 56 TAUs and 32 ROPs.

Compare those specifications to the Radeon HD 7790, which features a core clock speed of 1000 MHz and a GDDR5 memory speed of 1500 MHz. It also makes use of a 128-bit memory bus, and makes use of a 28 nm design. It is comprised of 896 SPUs, 56 Texture Address Units, and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7790 85 Watts
GeForce GTX 460 2GB 160 Watts
Difference: 75 Watts (88%)

Memory Bandwidth

Theoretically, the GeForce GTX 460 2GB should perform a small bit faster than the Radeon HD 7790 in general. (explain)

GeForce GTX 460 2GB 115200 MB/sec
Radeon HD 7790 96000 MB/sec
Difference: 19200 (20%)

Texel Rate

The Radeon HD 7790 should be quite a bit (more or less 48%) faster with regards to anisotropic filtering than the GeForce GTX 460 2GB. (explain)

Radeon HD 7790 56000 Mtexels/sec
GeForce GTX 460 2GB 37800 Mtexels/sec
Difference: 18200 (48%)

Pixel Rate

The GeForce GTX 460 2GB should be quite a bit (approximately 35%) better at AA than the Radeon HD 7790, and also will be able to handle higher resolutions without losing too much performance. (explain)

GeForce GTX 460 2GB 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 2GB

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 2GB Radeon HD 7790
Manufacturer nVidia AMD
Year July 2010 March 2013
Code Name GF104 Bonaire XT
Memory 2048 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 largest amount of information (counted in MB per second) that can be moved over the external memory interface in one second. It is calculated by multiplying the interface width by its memory clock speed. In the case of DDR RAM, it must be multiplied by 2 once again. If it uses 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 high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied in one second. This number is calculated by multiplying the total texture units by the core clock speed of the chip. The better this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly write 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 clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

Hide Prices

GeForce GTX 460 2GB

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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