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GeForce GTX 460 (OEM) vs Radeon HD 7790

Intro

The GeForce GTX 460 (OEM) has core clock speeds of 650 MHz on the GPU, and 850 MHz on the 1024 MB of GDDR5 memory. It features 336 SPUs as well as 56 TAUs and 32 Rasterization Operator Units.

Compare all that to the Radeon HD 7790, which has a GPU core clock speed of 1000 MHz, and 1024 MB of GDDR5 memory set to run at 1500 MHz through a 128-bit bus. It also is made up of 896 Stream Processors, 56 Texture Address Units, and 16 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7790 85 Watts
GeForce GTX 460 (OEM) 150 Watts
Difference: 65 Watts (76%)

Memory Bandwidth

In theory, the GeForce GTX 460 (OEM) is 13% faster than the Radeon HD 7790 overall, because of its greater data rate. (explain)

GeForce GTX 460 (OEM) 108800 MB/sec
Radeon HD 7790 96000 MB/sec
Difference: 12800 (13%)

Texel Rate

The Radeon HD 7790 will be a lot (more or less 54%) faster with regards to texture filtering than the GeForce GTX 460 (OEM). (explain)

Radeon HD 7790 56000 Mtexels/sec
GeForce GTX 460 (OEM) 36400 Mtexels/sec
Difference: 19600 (54%)

Pixel Rate

The GeForce GTX 460 (OEM) should be a lot (more or less 30%) faster with regards to FSAA than the Radeon HD 7790, and will be capable of handling higher screen resolutions more effectively. (explain)

GeForce GTX 460 (OEM) 20800 Mpixels/sec
Radeon HD 7790 16000 Mpixels/sec
Difference: 4800 (30%)

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 (OEM)

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 (OEM) Radeon HD 7790
Manufacturer nVidia AMD
Year October 2010 March 2013
Code Name GF104 Bonaire XT
Memory 1024 MB 1024 MB
Core Speed 650 MHz 1000 MHz
Memory Speed 3400 MHz 6000 MHz
Power (Max TDP) 150 watts 85 watts
Bandwidth 108800 MB/sec 96000 MB/sec
Texel Rate 36400 Mtexels/sec 56000 Mtexels/sec
Pixel Rate 20800 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: Memory bandwidth is the max amount of information (measured in MB per second) that can be transferred over the external memory interface in a second. It is calculated by multiplying the card's bus width by its memory clock speed. If it uses DDR memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

Hide Prices

GeForce GTX 460 (OEM)

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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