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GeForce GTX 560 Ti vs Radeon HD 4890 2GB
Intro
The GeForce GTX 560 Ti features a clock frequency of 822 MHz and a GDDR5 memory frequency of 1002 MHz. It also uses a 256-bit memory bus, and uses a 40 nm design. It is comprised of 384 SPUs, 64 Texture Address Units, and 32 ROPs.Compare those specs to the Radeon HD 4890 2GB, which features a GPU core clock speed of 1000 MHz, and 2048 MB of GDDR5 memory running at 975 MHz through a 256-bit bus. It also features 800(160x5) Stream Processors, 40 Texture Address Units, and 16 ROPs.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| GeForce GTX 560 Ti |
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170 Watts |
| Radeon HD 4890 2GB |
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190 Watts |
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Memory Bandwidth
The GeForce GTX 560 Ti, in theory, should be a small bit faster than the Radeon HD 4890 2GB overall. (explain)
| GeForce GTX 560 Ti |
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128256 MB/sec |
| Radeon HD 4890 2GB |
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124800 MB/sec |
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Texel Rate
The GeForce GTX 560 Ti should be much (about 32%) more effective at texture filtering than the Radeon HD 4890 2GB. (explain)| GeForce GTX 560 Ti |
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52608 Mtexels/sec |
| Radeon HD 4890 2GB |
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40000 Mtexels/sec |
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Pixel Rate
If running with a high screen resolution is important to you, then the GeForce GTX 560 Ti is the winner, by a large margin. (explain)| GeForce GTX 560 Ti |
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26304 Mpixels/sec |
| Radeon HD 4890 2GB |
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16000 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 560 TiAmazon.com
Check prices at:
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Radeon HD 4890 2GBAmazon.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 Ti | Radeon HD 4890 2GB |
|---|---|---|
| Manufacturer | nVidia | AMD |
| Year | January 2011 | Apr 2, 2009 |
| Code Name | GF114 | RV790 XT |
| Memory | 1024 MB | 2048 MB |
| Core Speed | 822 MHz | 1000 MHz |
| Memory Speed | 4008 MHz | 3900 MHz |
| Power (Max TDP) | 170 watts | 190 watts |
| Bandwidth | 128256 MB/sec | 124800 MB/sec |
| Texel Rate | 52608 Mtexels/sec | 40000 Mtexels/sec |
| Pixel Rate | 26304 Mpixels/sec | 16000 Mpixels/sec |
| Unified Shaders | 384 | 800(160x5) |
| Texture Mapping Units | 64 | 40 |
| Render Output Units | 32 | 16 |
| Bus Type | GDDR5 | GDDR5 |
| Bus Width | 256-bit | 256-bit |
| Fab Process | 40 nm | 55 nm |
| Transistors | 1950 million | 959 million |
| Bus | PCIe x16 | PCIe 2.0 x16 |
| DirectX Version | DirectX 11 | DirectX 10.1 |
| OpenGL Version | OpenGL 4.1 | OpenGL 3.0 |
Memory Bandwidth: Memory bandwidth is the max amount of data (in units of MB per second) that can be transported across the external memory interface in one second. The number is worked out by multiplying the card's bus width by its memory speed. In the case of DDR type RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better 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 is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The better this number, the better the 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 most pixels the graphics card could possibly record to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.
GeForce GTX 560 TiAmazon.com
Check prices at:
|
Radeon HD 4890 2GBAmazon.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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