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Radeon HD 4890 2GB vs Radeon RX 460 2GB
Intro
The Radeon HD 4890 2GB makes use of a 55 nm design. AMD has set the core frequency at 1000 MHz. The GDDR5 RAM runs at a speed of 975 MHz on this specific model. It features 800(160x5) SPUs as well as 40 Texture Address Units and 16 ROPs.Compare that to the Radeon RX 460 2GB, which comes with a GPU core clock speed of 1090 MHz, and 2048 MB of GDDR5 RAM set to run at 1750 MHz through a 128-bit bus. It also is comprised of 896 SPUs, 56 Texture Address Units, and 16 Raster Operation Units.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| Radeon RX 460 2GB |
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75 Watts |
| Radeon HD 4890 2GB |
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190 Watts |
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Memory Bandwidth
In theory, the Radeon HD 4890 2GB is 11% faster than the Radeon RX 460 2GB overall, due to its greater bandwidth. (explain)
| Radeon HD 4890 2GB |
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124800 MB/sec |
| Radeon RX 460 2GB |
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112000 MB/sec |
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Texel Rate
The Radeon RX 460 2GB is a lot (more or less 53%) faster with regards to AF than the Radeon HD 4890 2GB. (explain)| Radeon RX 460 2GB |
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61040 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 Radeon RX 460 2GB is the winner, but only just. (explain)| Radeon RX 460 2GB |
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17440 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
Radeon HD 4890 2GBAmazon.com
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Radeon RX 460 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 | Radeon HD 4890 2GB | Radeon RX 460 2GB |
|---|---|---|
| Manufacturer | AMD | AMD |
| Year | Apr 2, 2009 | August 2016 |
| Code Name | RV790 XT | Polaris 11 |
| Memory | 2048 MB | 2048 MB |
| Core Speed | 1000 MHz | 1090 MHz |
| Memory Speed | 3900 MHz | 7000 MHz |
| Power (Max TDP) | 190 watts | 75 watts |
| Bandwidth | 124800 MB/sec | 112000 MB/sec |
| Texel Rate | 40000 Mtexels/sec | 61040 Mtexels/sec |
| Pixel Rate | 16000 Mpixels/sec | 17440 Mpixels/sec |
| Unified Shaders | 800(160x5) | 896 |
| Texture Mapping Units | 40 | 56 |
| Render Output Units | 16 | 16 |
| Bus Type | GDDR5 | GDDR5 |
| Bus Width | 256-bit | 128-bit |
| Fab Process | 55 nm | 14 nm |
| Transistors | 959 million | 3000 million |
| Bus | PCIe 2.0 x16 | PCIe 3.0 x16 |
| DirectX Version | DirectX 10.1 | DirectX 12.0 |
| OpenGL Version | OpenGL 3.0 | OpenGL 4.5 |
Memory Bandwidth: Bandwidth is the largest amount of information (counted in MB per second) that can be moved across the external memory interface in one second. The number is calculated by multiplying the card's interface width by its memory speed. If it uses DDR type memory, it should be multiplied by 2 once 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, HDR and high resolutions.
Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied in one second. This number is calculated by multiplying the total number of texture units by the core speed of the chip. The better the texel rate, the better the 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 most pixels that the graphics card could possibly record to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of ROPs 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 output 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 maximum fill rate.
Radeon HD 4890 2GBAmazon.com
Check prices at:
|
Radeon RX 460 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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