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Radeon HD 4830 512MB vs Radeon R7 250X 2GB
Intro
The Radeon HD 4830 512MB comes with a core clock frequency of 575 MHz and a GDDR3 memory speed of 900 MHz. It also features a 256-bit bus, and makes use of a 55 nm design. It is made up of 640(128x5) SPUs, 32 TAUs, and 16 Raster Operation Units.Compare that to the Radeon R7 250X 2GB, which features a GPU core clock speed of 1000 MHz, and 2048 MB of GDDR5 RAM set to run at 1125 MHz through a 128-bit bus. It also features 640 Stream Processors, 40 TAUs, and 16 Raster Operation Units.
Power Usage and Theoretical Benchmarks
Both cards have the same power consumption.Memory Bandwidth
Performance-wise, the Radeon R7 250X 2GB should theoretically be much superior to the Radeon HD 4830 512MB in general. (explain)
| Radeon R7 250X 2GB |
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72000 MB/sec |
| Radeon HD 4830 512MB |
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57600 MB/sec |
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Texel Rate
The Radeon R7 250X 2GB is quite a bit (about 117%) more effective at AF than the Radeon HD 4830 512MB. (explain)| Radeon R7 250X 2GB |
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40000 Mtexels/sec |
| Radeon HD 4830 512MB |
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18400 Mtexels/sec |
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Pixel Rate
The Radeon R7 250X 2GB will be quite a bit (about 74%) faster with regards to AA than the Radeon HD 4830 512MB, and also will be able to handle higher screen resolutions better. (explain)| Radeon R7 250X 2GB |
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16000 Mpixels/sec |
| Radeon HD 4830 512MB |
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9200 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 4830 512MBAmazon.com
Check prices at:
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Radeon R7 250X 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 4830 512MB | Radeon R7 250X 2GB |
|---|---|---|
| Manufacturer | AMD | AMD |
| Year | Oct 21, 2008 | February 2014 |
| Code Name | RV770 LE | Cape Verde XT |
| Memory | 512 MB | 2048 MB |
| Core Speed | 575 MHz | 1000 MHz |
| Memory Speed | 1800 MHz | 4500 MHz |
| Power (Max TDP) | 95 watts | 95 watts |
| Bandwidth | 57600 MB/sec | 72000 MB/sec |
| Texel Rate | 18400 Mtexels/sec | 40000 Mtexels/sec |
| Pixel Rate | 9200 Mpixels/sec | 16000 Mpixels/sec |
| Unified Shaders | 640(128x5) | 640 |
| Texture Mapping Units | 32 | 40 |
| Render Output Units | 16 | 16 |
| Bus Type | GDDR3 | GDDR5 |
| Bus Width | 256-bit | 128-bit |
| Fab Process | 55 nm | 28 nm |
| Transistors | 956 million | 1500 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: Memory bandwidth is the largest amount of data (measured in MB per second) that can be moved across the external memory interface in a second. The number is worked out by multiplying the card's interface width by its memory clock speed. In the case of DDR type memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.
Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied in one second. This figure is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The better the texel rate, the better the card will be at 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 can possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.
Radeon HD 4830 512MBAmazon.com
Check prices at:
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Radeon R7 250X 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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