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Radeon R7 250X 2GB vs Radeon RX 470 4GB
Intro
The Radeon R7 250X 2GB comes with a clock frequency of 1000 MHz and a GDDR5 memory speed of 1125 MHz. It also features a 128-bit memory bus, and makes use of a 28 nm design. It is comprised of 640 SPUs, 40 TAUs, and 16 ROPs.Compare those specs to the Radeon RX 470 4GB, which has core speeds of 926 MHz on the GPU, and 1650 MHz on the 4096 MB of GDDR5 memory. It features 2048 SPUs along with 128 Texture Address Units and 32 ROPs.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| Radeon R7 250X 2GB |
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95 Watts |
| Radeon RX 470 4GB |
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120 Watts |
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Memory Bandwidth
The Radeon RX 470 4GB should theoretically perform a lot faster than the Radeon R7 250X 2GB overall. (explain)
| Radeon RX 470 4GB |
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211200 MB/sec |
| Radeon R7 250X 2GB |
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72000 MB/sec |
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Texel Rate
The Radeon RX 470 4GB is much (more or less 196%) faster with regards to AF than the Radeon R7 250X 2GB. (explain)| Radeon RX 470 4GB |
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118528 Mtexels/sec |
| Radeon R7 250X 2GB |
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40000 Mtexels/sec |
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Pixel Rate
The Radeon RX 470 4GB is quite a bit (approximately 85%) more effective at anti-aliasing than the Radeon R7 250X 2GB, and also should be capable of handling higher screen resolutions more effectively. (explain)| Radeon RX 470 4GB |
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29632 Mpixels/sec |
| Radeon R7 250X 2GB |
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16000 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 R7 250X 2GBAmazon.com
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Radeon RX 470 4GBAmazon.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 R7 250X 2GB | Radeon RX 470 4GB |
|---|---|---|
| Manufacturer | AMD | AMD |
| Year | February 2014 | August 2016 |
| Code Name | Cape Verde XT | Polaris 10 |
| Memory | 2048 MB | 4096 MB |
| Core Speed | 1000 MHz | 926 MHz |
| Memory Speed | 4500 MHz | 6600 MHz |
| Power (Max TDP) | 95 watts | 120 watts |
| Bandwidth | 72000 MB/sec | 211200 MB/sec |
| Texel Rate | 40000 Mtexels/sec | 118528 Mtexels/sec |
| Pixel Rate | 16000 Mpixels/sec | 29632 Mpixels/sec |
| Unified Shaders | 640 | 2048 |
| Texture Mapping Units | 40 | 128 |
| Render Output Units | 16 | 32 |
| Bus Type | GDDR5 | GDDR5 |
| Bus Width | 128-bit | 256-bit |
| Fab Process | 28 nm | 14 nm |
| Transistors | 1500 million | 5700 million |
| Bus | PCIe 3.0 x16 | PCIe 3.0 x16 |
| DirectX Version | DirectX 11.2 | DirectX 12.0 |
| OpenGL Version | OpenGL 4.3 | OpenGL 4.5 |
Memory Bandwidth: Memory bandwidth is the maximum amount of data (measured in megabytes per second) that can be moved over the external memory interface in a second. It's worked out by multiplying the card's bus width by the speed of its memory. If the card has DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.
Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied in one second. This is calculated by multiplying the total number of texture units by the core speed of the chip. The better the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.
Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly record to its 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 - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill 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 maximum fill rate.
Radeon R7 250X 2GBAmazon.com
Check prices at:
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Radeon RX 470 4GBAmazon.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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