 |
 |
Geforce GTX 680 vs Radeon HD 7870
Intro
The Geforce GTX 680 makes use of a 28 nm design. nVidia has clocked the core speed at 1006 MHz. The GDDR5 memory is set to run at a speed of 1502 MHz on this card. It features 1536 SPUs as well as 128 Texture Address Units and 32 ROPs.Compare all of that to the Radeon HD 7870, which makes use of a 28 nm design. AMD has set the core frequency at 1000 MHz. The GDDR5 memory runs at a frequency of 1200 MHz on this particular card. It features 1280 SPUs as well as 80 Texture Address Units and 32 Rasterization Operator 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 |
|
7650 points |
| Radeon HD 7870 |
|
6230 points |
|
|
Ethereum Mining Hash Rate
| Geforce GTX 680 |
|
16 Mh/s |
| Radeon HD 7870 |
|
16 Mh/s |
|
|
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| Radeon HD 7870 |
|
175 Watts |
| Geforce GTX 680 |
|
195 Watts |
|
|
Memory Bandwidth
Performance-wise, the Geforce GTX 680 should theoretically be much superior to the Radeon HD 7870 overall. (explain)
| Geforce GTX 680 |
|
192256 MB/sec |
| Radeon HD 7870 |
|
153600 MB/sec |
|
|
Texel Rate
The Geforce GTX 680 will be a lot (approximately 61%) more effective at anisotropic filtering than the Radeon HD 7870. (explain)| Geforce GTX 680 |
|
128768 Mtexels/sec |
| Radeon HD 7870 |
|
80000 Mtexels/sec |
|
|
Pixel Rate
The Geforce GTX 680 is a bit (about 1%) better at full screen anti-aliasing than the Radeon HD 7870, and also able to handle higher resolutions without losing too much performance. (explain)| Geforce GTX 680 |
|
32192 Mpixels/sec |
| Radeon HD 7870 |
|
32000 Mpixels/sec |
|
|
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
Check prices at:
|
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.
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 information (measured in MB per second) that can be transported across the external memory interface within a second. It is worked out 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 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.
Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed in one second. This figure is worked out by multiplying the total amount of texture units of the card by the core speed of the chip. The better the texel rate, the better the graphics card will be at handling 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 record to its local memory per second - measured in millions of pixels per second. The figure is calculated 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 drawing the pixels (image) on the screen. The actual pixel rate also depends on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.
Geforce GTX 680Amazon.com
Check prices at:
|
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