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Geforce GTX 680 vs Radeon HD 7870
Intro
The Geforce GTX 680 has a clock speed of 1006 MHz and a GDDR5 memory speed of 1502 MHz. It also uses a 256-bit bus, and uses a 28 nm design. It is made up of 1536 SPUs, 128 Texture Address Units, and 32 Raster Operation Units.Compare that to the Radeon HD 7870, which comes with GPU clock 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 SPUs, 80 Texture Address Units, and 32 Raster Operation Units.
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 |
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7650 points |
| Radeon HD 7870 |
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6230 points |
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Ethereum Mining Hash Rate
| Geforce GTX 680 |
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16 Mh/s |
| Radeon HD 7870 |
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16 Mh/s |
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Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| Radeon HD 7870 |
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175 Watts |
| Geforce GTX 680 |
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195 Watts |
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Memory Bandwidth
Theoretically speaking, the Geforce GTX 680 should be 25% faster than the Radeon HD 7870 overall, due to its greater data rate. (explain)
| Geforce GTX 680 |
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192256 MB/sec |
| Radeon HD 7870 |
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153600 MB/sec |
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Texel Rate
The Geforce GTX 680 is quite a bit (about 61%) faster with regards to texture filtering than the Radeon HD 7870. (explain)| Geforce GTX 680 |
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128768 Mtexels/sec |
| Radeon HD 7870 |
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80000 Mtexels/sec |
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Pixel Rate
If running with lots of anti-aliasing is important to you, then the Geforce GTX 680 is superior to the Radeon HD 7870, but it probably won't make a huge difference. (explain)| Geforce GTX 680 |
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32192 Mpixels/sec |
| Radeon HD 7870 |
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32000 Mpixels/sec |
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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
Geforce GTX 680Amazon.com
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Radeon HD 7870Amazon.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
| 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 data (in units of megabytes per second) that can be transferred over the external memory interface in one second. It's calculated by multiplying the card's interface width by its memory speed. In the case of DDR memory, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better 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 applied 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 better the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.
Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly record to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.
Geforce GTX 680Amazon.com
Check prices at:
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Radeon HD 7870Amazon.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”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!! 😀
waho niente male sul pixel addiritura allora la 7970 e piu potente della 7950 ho cosa...
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
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