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GeForce GTX 560 Ti vs Radeon HD 4890 2GB
Intro
The GeForce GTX 560 Ti comes with a core clock speed of 822 MHz and a GDDR5 memory speed of 1002 MHz. It also uses a 256-bit memory bus, and uses a 40 nm design. It features 384 SPUs, 64 Texture Address Units, and 32 ROPs.Compare those specifications to the Radeon HD 4890 2GB, which uses a 55 nm design. AMD has clocked the core speed at 1000 MHz. The GDDR5 RAM works at a frequency of 975 MHz on this particular model. It features 800(160x5) SPUs as well as 40 TAUs and 16 Rasterization Operator Units.
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 perform a bit faster than the Radeon HD 4890 2GB in general. (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 will be much (more or less 32%) more effective at anisotropic 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 using a high screen resolution is important to you, then the GeForce GTX 560 Ti is a better choice, by far. (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: Bandwidth is the largest amount of data (in units of MB per second) that can be transferred across the external memory interface in one second. It is worked out by multiplying the interface width by its memory clock speed. If it uses DDR memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.
Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed per second. This is calculated by multiplying the total number 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 processed per second.
Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly record to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the memory 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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