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Radeon HD 4890 2GB vs Radeon HD 6570 (OEM) 2GB
Intro
The Radeon HD 4890 2GB comes with a clock speed of 1000 MHz and a GDDR5 memory frequency of 975 MHz. It also uses a 256-bit bus, and makes use of a 55 nm design. It features 800(160x5) SPUs, 40 TAUs, and 16 Raster Operation Units.Compare those specs to the Radeon HD 6570 (OEM) 2GB, which has core clock speeds of 650 MHz on the GPU, and 1000 MHz on the 1024 MB of GDDR5 memory. It features 480 SPUs along with 24 Texture Address Units and 8 ROPs.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| Radeon HD 6570 (OEM) 2GB |
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50 Watts |
| Radeon HD 4890 2GB |
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190 Watts |
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Memory Bandwidth
The Radeon HD 4890 2GB, in theory, should perform a lot faster than the Radeon HD 6570 (OEM) 2GB in general. (explain)
| Radeon HD 4890 2GB |
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124800 MB/sec |
| Radeon HD 6570 (OEM) 2GB |
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64000 MB/sec |
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Texel Rate
The Radeon HD 4890 2GB is quite a bit (about 156%) more effective at anisotropic filtering than the Radeon HD 6570 (OEM) 2GB. (explain)| Radeon HD 4890 2GB |
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40000 Mtexels/sec |
| Radeon HD 6570 (OEM) 2GB |
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15600 Mtexels/sec |
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Pixel Rate
If using high levels of AA is important to you, then the Radeon HD 4890 2GB is a better choice, and very much so. (explain)| Radeon HD 4890 2GB |
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16000 Mpixels/sec |
| Radeon HD 6570 (OEM) 2GB |
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5200 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 HD 6570 (OEM) 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 HD 6570 (OEM) 2GB |
|---|---|---|
| Manufacturer | AMD | AMD |
| Year | Apr 2, 2009 | February 2011 |
| Code Name | RV790 XT | Turks |
| Memory | 2048 MB | 1024 MB |
| Core Speed | 1000 MHz | 650 MHz |
| Memory Speed | 3900 MHz | 4000 MHz |
| Power (Max TDP) | 190 watts | 50 watts |
| Bandwidth | 124800 MB/sec | 64000 MB/sec |
| Texel Rate | 40000 Mtexels/sec | 15600 Mtexels/sec |
| Pixel Rate | 16000 Mpixels/sec | 5200 Mpixels/sec |
| Unified Shaders | 800(160x5) | 480 |
| Texture Mapping Units | 40 | 24 |
| Render Output Units | 16 | 8 |
| Bus Type | GDDR5 | GDDR5 |
| Bus Width | 256-bit | 128-bit |
| Fab Process | 55 nm | 40 nm |
| Transistors | 959 million | 715 million |
| Bus | PCIe 2.0 x16 | PCIe 2.1 x16 |
| DirectX Version | DirectX 10.1 | DirectX 11 |
| OpenGL Version | OpenGL 3.0 | OpenGL 4.1 |
Memory Bandwidth: Memory bandwidth is the max amount of information (measured in MB per second) that can be transported over the external memory interface within a second. The number is worked out by multiplying the interface width by the speed of its memory. In the case of DDR type RAM, it must be multiplied by 2 once 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 anti-aliasing, High Dynamic Range and high resolutions.
Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied per second. This number is worked out by multiplying the total texture units by the core speed of the chip. The higher the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.
Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly record to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.
Radeon HD 4890 2GBAmazon.com
Check prices at:
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Radeon HD 6570 (OEM) 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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