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GeForce GTX 460 1GB vs Radeon HD 7870

Intro

The GeForce GTX 460 1GB comes with a GPU clock speed of 675 MHz, and the 1024 MB of GDDR5 RAM runs at 900 MHz through a 256-bit bus. It also is comprised of 336 SPUs, 56 Texture Address Units, and 32 ROPs.

Compare those specifications to the Radeon HD 7870, which features core clock speeds of 1000 MHz on the GPU, and 1200 MHz on the 2048 MB of GDDR5 memory. It features 1280 SPUs along with 80 TAUs and 32 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 460 1GB 160 Watts
Radeon HD 7870 175 Watts
Difference: 15 Watts (9%)

Memory Bandwidth

In theory, the Radeon HD 7870 will be 33% quicker than the GeForce GTX 460 1GB in general, due to its higher bandwidth. (explain)

Radeon HD 7870 153600 MB/sec
GeForce GTX 460 1GB 115200 MB/sec
Difference: 38400 (33%)

Texel Rate

The Radeon HD 7870 should be much (about 112%) faster with regards to AF than the GeForce GTX 460 1GB. (explain)

Radeon HD 7870 80000 Mtexels/sec
GeForce GTX 460 1GB 37800 Mtexels/sec
Difference: 42200 (112%)

Pixel Rate

The Radeon HD 7870 should be a lot (approximately 48%) more effective at FSAA than the GeForce GTX 460 1GB, and should be able to handle higher screen resolutions while still performing well. (explain)

Radeon HD 7870 32000 Mpixels/sec
GeForce GTX 460 1GB 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 1GB

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 1GB Radeon HD 7870
Manufacturer nVidia AMD
Year July 2010 March 2012
Code Name GF104 Pitcairn XT
Memory 1024 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 data (in units of MB per second) that can be transported across the external memory interface in one second. It is worked out by multiplying the interface width by its memory clock speed. If the card has DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster 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 processed per second. This is worked out by multiplying the total number of texture units by the core speed of the chip. The better the texel rate, the better the 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 can possibly record to the local memory per second - measured in millions of pixels per second. The number is calculated 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 outputting the pixels (image) to the screen. The actual pixel rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

Hide Prices

GeForce GTX 460 1GB

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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