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Radeon HD 4890 1GB vs Radeon HD 6570 (OEM) 2GB
Intro
The Radeon HD 4890 1GB comes with a core clock speed of 1000 MHz and a GDDR5 memory frequency of 975 MHz. It also makes use of a 256-bit memory bus, and makes use of a 55 nm design. It is comprised of 800(160x5) SPUs, 40 TAUs, and 16 ROPs.Compare those specifications to the Radeon HD 6570 (OEM) 2GB, which features clock speeds of 650 MHz on the GPU, and 1000 MHz on the 1024 MB of GDDR5 RAM. 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 1GB |
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190 Watts |
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Memory Bandwidth
As far as performance goes, the Radeon HD 4890 1GB should theoretically be much superior to the Radeon HD 6570 (OEM) 2GB in general. (explain)
| Radeon HD 4890 1GB |
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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 1GB should be much (approximately 156%) better at anisotropic filtering than the Radeon HD 6570 (OEM) 2GB. (explain)| Radeon HD 4890 1GB |
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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
The Radeon HD 4890 1GB will be much (approximately 208%) better at FSAA than the Radeon HD 6570 (OEM) 2GB, and also will be able to handle higher resolutions better. (explain)| Radeon HD 4890 1GB |
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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 1GBAmazon.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 1GB | Radeon HD 6570 (OEM) 2GB |
|---|---|---|
| Manufacturer | AMD | AMD |
| Year | Apr 2, 2009 | February 2011 |
| Code Name | RV790 XT | Turks |
| Memory | 1024 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 maximum amount of data (counted in MB per second) that can be transported past the external memory interface within a second. It is worked out by multiplying the card's interface width by the speed of its memory. In the case of DDR type memory, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.
Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied in one second. This is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The higher the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.
Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly record to the local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number 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 filling the screen with pixels (the image). The actual pixel output rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.
Radeon HD 4890 1GBAmazon.com
Check prices at:
|
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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