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Radeon HD 4550 256MB vs Radeon R7 250X 2GB
Intro
The Radeon HD 4550 256MB makes use of a 55 nm design. AMD has clocked the core speed at 600 MHz. The DDR3 memory is set to run at a frequency of 800 MHz on this specific model. It features 80(16x5) SPUs as well as 8 Texture Address Units and 4 Rasterization Operator Units.Compare all of that to the Radeon R7 250X 2GB, which has a clock frequency of 1000 MHz and a GDDR5 memory speed of 1125 MHz. It also features a 128-bit memory bus, and uses a 28 nm design. It is made up of 640 SPUs, 40 Texture Address Units, and 16 ROPs.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| Radeon HD 4550 256MB |
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25 Watts |
| Radeon R7 250X 2GB |
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95 Watts |
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Memory Bandwidth
In theory, the Radeon R7 250X 2GB will be 463% quicker than the Radeon HD 4550 256MB in general, due to its higher bandwidth. (explain)
| Radeon R7 250X 2GB |
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72000 MB/sec |
| Radeon HD 4550 256MB |
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12800 MB/sec |
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Texel Rate
The Radeon R7 250X 2GB should be quite a bit (more or less 733%) more effective at AF than the Radeon HD 4550 256MB. (explain)| Radeon R7 250X 2GB |
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40000 Mtexels/sec |
| Radeon HD 4550 256MB |
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4800 Mtexels/sec |
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Pixel Rate
If running with high levels of AA is important to you, then the Radeon R7 250X 2GB is a better choice, and very much so. (explain)| Radeon R7 250X 2GB |
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16000 Mpixels/sec |
| Radeon HD 4550 256MB |
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2400 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 4550 256MBAmazon.com
Check prices at:
|
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 4550 256MB | Radeon R7 250X 2GB |
|---|---|---|
| Manufacturer | AMD | AMD |
| Year | Sep 30, 2008 | February 2014 |
| Code Name | RV710 | Cape Verde XT |
| Memory | 256 MB | 2048 MB |
| Core Speed | 600 MHz | 1000 MHz |
| Memory Speed | 1600 MHz | 4500 MHz |
| Power (Max TDP) | 25 watts | 95 watts |
| Bandwidth | 12800 MB/sec | 72000 MB/sec |
| Texel Rate | 4800 Mtexels/sec | 40000 Mtexels/sec |
| Pixel Rate | 2400 Mpixels/sec | 16000 Mpixels/sec |
| Unified Shaders | 80(16x5) | 640 |
| Texture Mapping Units | 8 | 40 |
| Render Output Units | 4 | 16 |
| Bus Type | DDR3 | GDDR5 |
| Bus Width | 64-bit | 128-bit |
| Fab Process | 55 nm | 28 nm |
| Transistors | 242 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: Bandwidth is the maximum amount of data (in units of MB per second) that can be moved across the external memory interface in one second. It's calculated by multiplying the card's interface width by its memory clock speed. If the card has DDR type RAM, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.
Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied per second. This figure is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The higher the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.
Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly record to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.
Radeon HD 4550 256MBAmazon.com
Check prices at:
|
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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