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Radeon HD 4890 1GB vs Radeon HD 5830
Intro
The Radeon HD 4890 1GB has a core clock speed of 1000 MHz and a GDDR5 memory speed of 975 MHz. It also uses a 256-bit memory bus, and makes use of a 55 nm design. It is made up of 800(160x5) SPUs, 40 Texture Address Units, and 16 Raster Operation Units.Compare those specs to the Radeon HD 5830, which has core speeds of 800 MHz on the GPU, and 1000 MHz on the 1024 MB of GDDR5 RAM. It features 1120(224x5) SPUs along with 56 Texture Address Units and 16 ROPs.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| Radeon HD 5830 |
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175 Watts |
| Radeon HD 4890 1GB |
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190 Watts |
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Memory Bandwidth
Theoretically speaking, the Radeon HD 5830 is 3% faster than the Radeon HD 4890 1GB overall, because of its greater bandwidth. (explain)
| Radeon HD 5830 |
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128000 MB/sec |
| Radeon HD 4890 1GB |
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124800 MB/sec |
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Texel Rate
The Radeon HD 5830 should be a little bit (about 12%) better at texture filtering than the Radeon HD 4890 1GB. (explain)| Radeon HD 5830 |
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44800 Mtexels/sec |
| Radeon HD 4890 1GB |
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40000 Mtexels/sec |
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Pixel Rate
The Radeon HD 4890 1GB should be much (about 25%) better at full screen anti-aliasing than the Radeon HD 5830, and also will be capable of handling higher screen resolutions while still performing well. (explain)| Radeon HD 4890 1GB |
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16000 Mpixels/sec |
| Radeon HD 5830 |
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12800 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
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Radeon HD 5830Amazon.com
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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 5830 |
|---|---|---|
| Manufacturer | AMD | AMD |
| Year | Apr 2, 2009 | February 25, 2010 |
| Code Name | RV790 XT | Cypress LE |
| Memory | 1024 MB | 1024 MB |
| Core Speed | 1000 MHz | 800 MHz |
| Memory Speed | 3900 MHz | 4000 MHz |
| Power (Max TDP) | 190 watts | 175 watts |
| Bandwidth | 124800 MB/sec | 128000 MB/sec |
| Texel Rate | 40000 Mtexels/sec | 44800 Mtexels/sec |
| Pixel Rate | 16000 Mpixels/sec | 12800 Mpixels/sec |
| Unified Shaders | 800(160x5) | 1120(224x5) |
| Texture Mapping Units | 40 | 56 |
| Render Output Units | 16 | 16 |
| Bus Type | GDDR5 | GDDR5 |
| Bus Width | 256-bit | 256-bit |
| Fab Process | 55 nm | 40 nm |
| Transistors | 959 million | 2154 million |
| Bus | PCIe 2.0 x16 | PCIe 2.1 x16 |
| DirectX Version | DirectX 10.1 | DirectX 11 |
| OpenGL Version | OpenGL 3.0 | OpenGL 3.2 |
Memory Bandwidth: Bandwidth is the max amount of data (in units of MB per second) that can be transported across the external memory interface in one second. It's worked out by multiplying the bus width by the speed of its memory. In the case of DDR type memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, 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 are applied in one second. This number is calculated by multiplying the total texture units by the core clock speed of the chip. The better this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.
Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly record to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.
Radeon HD 4890 1GBAmazon.com
Check prices at:
|
Radeon HD 5830Amazon.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.
|
Comments
One Response to “Radeon HD 4890 1GB vs Radeon HD 5830”[...] comparable to 5830 Radeon HD 4890 1GB vs Radeon HD 5830 – Performance Comparison Benchmarks @ Hardware Compare conclusion When combining all game benchmark scores on this page together, the Radeon HD 4890 1GB [...]