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Geforce GTX 680 vs Radeon HD 7870

Intro

The Geforce GTX 680 comes with a GPU core speed of 1006 MHz, and the 2048 MB of GDDR5 memory is set to run at 1502 MHz through a 256-bit bus. It also is comprised of 1536 Stream Processors, 128 Texture Address Units, and 32 Raster Operation Units.

Compare those specs to the Radeon HD 7870, which comes with a core clock speed of 1000 MHz and a GDDR5 memory frequency of 1200 MHz. It also features a 256-bit memory bus, and makes use of a 28 nm design. It features 1280 SPUs, 80 Texture Address Units, and 32 Raster Operation Units.

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

Geforce GTX 680 7650 points
Radeon HD 7870 6230 points
Difference: 1420 (23%)

Ethereum Mining Hash Rate

Geforce GTX 680 16 Mh/s
Radeon HD 7870 16 Mh/s
Difference: 0 (0%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7870 175 Watts
Geforce GTX 680 195 Watts
Difference: 20 Watts (11%)

Memory Bandwidth

As far as performance goes, the Geforce GTX 680 should theoretically be a lot better than the Radeon HD 7870 overall. (explain)

Geforce GTX 680 192256 MB/sec
Radeon HD 7870 153600 MB/sec
Difference: 38656 (25%)

Texel Rate

The Geforce GTX 680 will be quite a bit (about 61%) more effective at anisotropic filtering than the Radeon HD 7870. (explain)

Geforce GTX 680 128768 Mtexels/sec
Radeon HD 7870 80000 Mtexels/sec
Difference: 48768 (61%)

Pixel Rate

The Geforce GTX 680 will be just a bit (approximately 1%) better at anti-aliasing than the Radeon HD 7870, and also should be able to handle higher resolutions better. (explain)

Geforce GTX 680 32192 Mpixels/sec
Radeon HD 7870 32000 Mpixels/sec
Difference: 192 (1%)

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 680

Amazon.com

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Radeon HD 7870

Amazon.com

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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 680 Radeon HD 7870
Manufacturer nVidia AMD
Year March 2012 March 2012
Code Name GK104 Pitcairn XT
Memory 2048 MB 2048 MB
Core Speed 1006 MHz 1000 MHz
Memory Speed 6008 MHz 4800 MHz
Power (Max TDP) 195 watts 175 watts
Bandwidth 192256 MB/sec 153600 MB/sec
Texel Rate 128768 Mtexels/sec 80000 Mtexels/sec
Pixel Rate 32192 Mpixels/sec 32000 Mpixels/sec
Unified Shaders 1536 1280
Texture Mapping Units 128 80
Render Output Units 32 32
Bus Type GDDR5 GDDR5
Bus Width 256-bit 256-bit
Fab Process 28 nm 28 nm
Transistors 3540 million 2800 million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 11.0 DirectX 11.1
OpenGL Version OpenGL 4.2 OpenGL 4.2

Memory Bandwidth: Bandwidth is the largest amount of information (counted in MB per second) that can be transferred across the external memory interface in one second. The number is worked out by multiplying the interface width by the speed of its memory. If it uses DDR RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed in one second. This number is calculated by multiplying the total number of texture units of the card 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 applied per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

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Geforce GTX 680

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.

Comments

4 Responses to “Geforce GTX 680 vs Radeon HD 7870”
Vlad says:

The 680 is definitely the way to go! Yet its suprisingly cheaper too. Hence why its already sold out and nowhere to be found... Still not that much different in price from the GTX 580. And the 7970 right now is still more expensive. 680 FTW!! 😀

Anonymous says:

waho niente male sul pixel addiritura allora la 7970 e piu potente della 7950 ho cosa...

MikEms says:

Thanks to its 1000MHz clock speed, the Radeon HD 7870 has higher pixel fill and rasterization rates than even the Radeon HD 7970. That's because the two cards have the same number of ROPs, and they can both process two triangles per clock, but the 7970 is only clocked at 925MHz. The 7870 does have more modest texture filtering capabilities, though, not to mention substantially lower shader throughput and memory bandwidth. Source : http://techreport.com/articles.x/22573/2

Random guy says:

The 7870 has better price performance
7870 = I found an OC'd version for 178.98 euros on PIXmania (sapphire 2gb)
680 = Is 300 euros on it's cheapest and overclocking is harder and less effective on a 680

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