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GeForce GTX 560 vs Radeon HD 6990
Intro
The GeForce GTX 560 makes use of a 40 nm design. nVidia has clocked the core frequency at 810 MHz. The GDDR5 memory runs at a frequency of 1001 MHz on this particular model. It features 336 SPUs as well as 56 Texture Address Units and 32 Rasterization Operator Units.Compare all that to the Radeon HD 6990, which comes with a core clock speed of 830 MHz and a GDDR5 memory speed of 1250 MHz. It also features a 256-bit bus, and uses a 40 nm design. It is made up of 1536 SPUs, 96 TAUs, and 32 ROPs.
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
| Radeon HD 6990 |
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5820 points |
| GeForce GTX 560 |
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3030 points |
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Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| GeForce GTX 560 |
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150 Watts |
| Radeon HD 6990 |
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375 Watts |
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Memory Bandwidth
In theory, the Radeon HD 6990 should be 150% faster than the GeForce GTX 560 overall, due to its higher bandwidth. (explain)
| Radeon HD 6990 |
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320000 MB/sec |
| GeForce GTX 560 |
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128128 MB/sec |
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Texel Rate
The Radeon HD 6990 is quite a bit (approximately 251%) faster with regards to texture filtering than the GeForce GTX 560. (explain)| Radeon HD 6990 |
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159360 Mtexels/sec |
| GeForce GTX 560 |
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45360 Mtexels/sec |
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Pixel Rate
If running with a high screen resolution is important to you, then the Radeon HD 6990 is a better choice, by a large margin. (explain)| Radeon HD 6990 |
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53120 Mpixels/sec |
| GeForce GTX 560 |
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25920 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.
One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.
Price Comparison
GeForce GTX 560Amazon.com
Check prices at:
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Radeon HD 6990Amazon.com
Check prices at:
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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 560 | Radeon HD 6990 |
|---|---|---|
| Manufacturer | nVidia | AMD |
| Year | May 2011 | March 2011 |
| Code Name | GF114 | Antilles |
| Memory | 1024 MB | 2048 MB (x2) |
| Core Speed | 810 MHz | 830 MHz (x2) |
| Memory Speed | 4004 MHz | 5000 MHz (x2) |
| Power (Max TDP) | 150 watts | 375 watts |
| Bandwidth | 128128 MB/sec | 320000 MB/sec |
| Texel Rate | 45360 Mtexels/sec | 159360 Mtexels/sec |
| Pixel Rate | 25920 Mpixels/sec | 53120 Mpixels/sec |
| Unified Shaders | 336 | 1536 (x2) |
| Texture Mapping Units | 56 | 96 (x2) |
| Render Output Units | 32 | 32 (x2) |
| Bus Type | GDDR5 | GDDR5 |
| Bus Width | 256-bit | 256-bit (x2) |
| Fab Process | 40 nm | 40 nm |
| Transistors | 1950 million | 2640 million |
| Bus | PCIe 2.0 x16 | PCIe 2.1 x16 |
| DirectX Version | DirectX 11 | DirectX 11 |
| OpenGL Version | OpenGL 4.1 | OpenGL 4.1 |
Memory Bandwidth: Bandwidth is the largest amount of information (measured in megabytes per second) that can be moved past the external memory interface in a second. The number is calculated by multiplying the card's interface width by its memory speed. In the case of DDR RAM, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the bandwidth is, 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 can be applied per second. This is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The higher this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.
Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.
GeForce GTX 560Amazon.com
Check prices at:
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Radeon HD 6990Amazon.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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