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GeForce GTX 660 Ti vs Radeon HD 5970
Intro
The GeForce GTX 660 Ti makes use of a 28 nm design. nVidia has set the core frequency at 915 MHz. The GDDR5 RAM is set to run at a speed of 1500 MHz on this specific model. It features 1344 SPUs along with 112 Texture Address Units and 24 Rasterization Operator Units.Compare all that to the Radeon HD 5970, which features core speeds of 725 MHz on the GPU, and 1000 MHz on the 1024 MB of GDDR5 RAM. It features 1600 SPUs along with 160 Texture Address Units and 64 Rasterization Operator Units.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| GeForce GTX 660 Ti |
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150 Watts |
| Radeon HD 5970 |
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294 Watts |
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Memory Bandwidth
As far as performance goes, the Radeon HD 5970 should theoretically be much superior to the GeForce GTX 660 Ti overall. (explain)
| Radeon HD 5970 |
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256000 MB/sec |
| GeForce GTX 660 Ti |
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144000 MB/sec |
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Texel Rate
The Radeon HD 5970 should be much (more or less 126%) faster with regards to texture filtering than the GeForce GTX 660 Ti. (explain)| Radeon HD 5970 |
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232000 Mtexels/sec |
| GeForce GTX 660 Ti |
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102480 Mtexels/sec |
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Pixel Rate
The Radeon HD 5970 should be a lot (about 323%) better at anti-aliasing than the GeForce GTX 660 Ti, and will be capable of handling higher screen resolutions better. (explain)| Radeon HD 5970 |
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92800 Mpixels/sec |
| GeForce GTX 660 Ti |
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21960 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 660 TiAmazon.com
Check prices at:
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Radeon HD 5970Amazon.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 660 Ti | Radeon HD 5970 |
|---|---|---|
| Manufacturer | nVidia | AMD |
| Year | August 2012 | November 2009 |
| Code Name | GK104 | Hemlock XT |
| Memory | 2048 MB | 1024 MB (x2) |
| Core Speed | 915 MHz | 725 MHz (x2) |
| Memory Speed | 6000 MHz | 4000 MHz (x2) |
| Power (Max TDP) | 150 watts | 294 watts |
| Bandwidth | 144000 MB/sec | 256000 MB/sec |
| Texel Rate | 102480 Mtexels/sec | 232000 Mtexels/sec |
| Pixel Rate | 21960 Mpixels/sec | 92800 Mpixels/sec |
| Unified Shaders | 1344 | 1600 (x2) |
| Texture Mapping Units | 112 | 160 (x2) |
| Render Output Units | 24 | 64 (x2) |
| Bus Type | GDDR5 | GDDR5 |
| Bus Width | 192-bit | 256-bit (x2) |
| Fab Process | 28 nm | 40 nm |
| Transistors | 3540 million | 2154 million |
| Bus | PCIe 3.0 x16 | PCIe x16 |
| DirectX Version | DirectX 11.0 | DirectX 11 |
| OpenGL Version | OpenGL 4.3 | OpenGL 4.1 |
Memory Bandwidth: Memory bandwidth is the largest amount of data (measured in megabytes per second) that can be moved past the external memory interface within a second. It's worked out by multiplying the card's bus width by its memory speed. If it uses DDR RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the 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 number of texture map elements (texels) that are applied per second. This figure is calculated by multiplying the total number of texture units by the core clock speed of the chip. The higher this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one 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. The figure is calculated by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.
GeForce GTX 660 TiAmazon.com
Check prices at:
|
Radeon HD 5970Amazon.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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