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Radeon HD 4890 2GB vs Radeon R7 260X
Intro
The Radeon HD 4890 2GB features core speeds of 1000 MHz on the GPU, and 975 MHz on the 2048 MB of GDDR5 memory. It features 800(160x5) SPUs as well as 40 Texture Address Units and 16 Rasterization Operator Units.Compare those specs to the Radeon R7 260X, which features a clock frequency of 1100 MHz and a GDDR5 memory speed of 1625 MHz. It also uses a 128-bit bus, and makes use of a 28 nm design. It is made up of 896 SPUs, 56 Texture Address Units, and 16 Raster Operation Units.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| Radeon R7 260X |
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115 Watts |
| Radeon HD 4890 2GB |
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190 Watts |
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Memory Bandwidth
As far as performance goes, the Radeon HD 4890 2GB should theoretically be a bit superior to the Radeon R7 260X in general. (explain)
| Radeon HD 4890 2GB |
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124800 MB/sec |
| Radeon R7 260X |
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104000 MB/sec |
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Texel Rate
The Radeon R7 260X will be much (more or less 54%) faster with regards to texture filtering than the Radeon HD 4890 2GB. (explain)| Radeon R7 260X |
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61600 Mtexels/sec |
| Radeon HD 4890 2GB |
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40000 Mtexels/sec |
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Pixel Rate
The Radeon R7 260X should be a small bit (about 10%) faster with regards to anti-aliasing than the Radeon HD 4890 2GB, and capable of handling higher resolutions better. (explain)| Radeon R7 260X |
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17600 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
Check prices at:
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Radeon R7 260XAmazon.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 R7 260X |
|---|---|---|
| Manufacturer | AMD | AMD |
| Year | Apr 2, 2009 | October 2013 |
| Code Name | RV790 XT | Bonaire XTX |
| Memory | 2048 MB | 2048 MB |
| Core Speed | 1000 MHz | 1100 MHz |
| Memory Speed | 3900 MHz | 6500 MHz |
| Power (Max TDP) | 190 watts | 115 watts |
| Bandwidth | 124800 MB/sec | 104000 MB/sec |
| Texel Rate | 40000 Mtexels/sec | 61600 Mtexels/sec |
| Pixel Rate | 16000 Mpixels/sec | 17600 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 | 28 nm |
| Transistors | 959 million | 2080 million |
| Bus | PCIe 2.0 x16 | PCIe 3.0 x16 |
| DirectX Version | DirectX 10.1 | DirectX 11.2 |
| OpenGL Version | OpenGL 3.0 | OpenGL 4.3 |
Memory Bandwidth: Bandwidth is the maximum amount of information (in units of megabytes per second) that can be transported over the external memory interface in one second. The number is calculated by multiplying the interface width by its memory speed. If it uses DDR type RAM, the result should be multiplied by 2 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, High Dynamic Range and higher screen resolutions.
Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied per second. This number is worked out by multiplying the total number of texture units by the core clock speed of the chip. The better this number, the better the graphics 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 that the graphics chip could possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Render Output Units by the the card's clock speed. 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 output rate is also dependant on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.
Radeon HD 4890 2GBAmazon.com
Check prices at:
|
Radeon R7 260XAmazon.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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