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GeForce GTX 460 2GB vs Radeon HD 7870

Intro

The GeForce GTX 460 2GB has a GPU core clock speed of 675 MHz, and the 2048 MB of GDDR5 memory is set to run at 900 MHz through a 256-bit bus. It also features 336 SPUs, 56 Texture Address Units, and 32 Raster Operation Units.

Compare that to the Radeon HD 7870, which comes with GPU core speed of 1000 MHz, and 2048 MB of GDDR5 memory set to run at 1200 MHz through a 256-bit bus. It also is made up of 1280 Stream Processors, 80 Texture Address Units, and 32 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 460 2GB 160 Watts
Radeon HD 7870 175 Watts
Difference: 15 Watts (9%)

Memory Bandwidth

The Radeon HD 7870 should in theory be a lot faster than the GeForce GTX 460 2GB in general. (explain)

Radeon HD 7870 153600 MB/sec
GeForce GTX 460 2GB 115200 MB/sec
Difference: 38400 (33%)

Texel Rate

The Radeon HD 7870 will be quite a bit (approximately 112%) faster with regards to anisotropic filtering than the GeForce GTX 460 2GB. (explain)

Radeon HD 7870 80000 Mtexels/sec
GeForce GTX 460 2GB 37800 Mtexels/sec
Difference: 42200 (112%)

Pixel Rate

The Radeon HD 7870 is quite a bit (more or less 48%) faster with regards to anti-aliasing than the GeForce GTX 460 2GB, and also should be able to handle higher resolutions better. (explain)

Radeon HD 7870 32000 Mpixels/sec
GeForce GTX 460 2GB 21600 Mpixels/sec
Difference: 10400 (48%)

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 7870

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 7870
Manufacturer nVidia AMD
Year July 2010 March 2012
Code Name GF104 Pitcairn XT
Memory 2048 MB 2048 MB
Core Speed 675 MHz 1000 MHz
Memory Speed 3600 MHz 4800 MHz
Power (Max TDP) 160 watts 175 watts
Bandwidth 115200 MB/sec 153600 MB/sec
Texel Rate 37800 Mtexels/sec 80000 Mtexels/sec
Pixel Rate 21600 Mpixels/sec 32000 Mpixels/sec
Unified Shaders 336 1280
Texture Mapping Units 56 80
Render Output Units 32 32
Bus Type GDDR5 GDDR5
Bus Width 256-bit 256-bit
Fab Process 40 nm 28 nm
Transistors 1950 million 2800 million
Bus PCIe x16 PCIe 3.0 x16
DirectX Version DirectX 11 DirectX 11.1
OpenGL Version OpenGL 4.1 OpenGL 4.2

Memory Bandwidth: Memory bandwidth is the maximum amount of information (measured in megabytes per second) that can be transferred past the external memory interface within a second. It is worked out by multiplying the card's bus width by the speed of its memory. If it uses DDR type RAM, it must be multiplied by 2 once 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 high resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill 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 2GB

Amazon.com

Check prices at:

Radeon HD 7870

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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