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Radeon HD 7950 3GB vs Radeon R9 270X
Intro
The Radeon HD 7950 3GB uses a 28 nm design. AMD has clocked the core speed at 800 MHz. The GDDR5 memory works at a frequency of 1250 MHz on this particular model. It features 1792 SPUs along with 112 Texture Address Units and 32 Rasterization Operator Units.Compare those specs to the Radeon R9 270X, which has GPU core speed of 1000 MHz, and 2048 MB of GDDR5 memory set to run at 1400 MHz through a 256-bit bus. It also is comprised of 1280 Stream Processors, 80 TAUs, and 32 ROPs.
Benchmarks
These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.
Zcash Mining Hash Rate
| Radeon HD 7950 3GB |
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229 Sol/s |
| Radeon R9 270X |
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177 Sol/s |
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Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| Radeon R9 270X |
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180 Watts |
| Radeon HD 7950 3GB |
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200 Watts |
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Memory Bandwidth
Theoretically speaking, the Radeon HD 7950 3GB should be a lot faster than the Radeon R9 270X in general. (explain)
| Radeon HD 7950 3GB |
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240000 MB/sec |
| Radeon R9 270X |
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179200 MB/sec |
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Texel Rate
The Radeon HD 7950 3GB will be a bit (more or less 12%) better at AF than the Radeon R9 270X. (explain)| Radeon HD 7950 3GB |
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89600 Mtexels/sec |
| Radeon R9 270X |
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80000 Mtexels/sec |
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Pixel Rate
If using lots of anti-aliasing is important to you, then the Radeon R9 270X is a better choice, and very much so. (explain)| Radeon R9 270X |
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32000 Mpixels/sec |
| Radeon HD 7950 3GB |
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25600 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 7950 3GBAmazon.com
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Radeon R9 270XAmazon.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 7950 3GB | Radeon R9 270X |
|---|---|---|
| Manufacturer | AMD | AMD |
| Year | January 2012 | October 2013 |
| Code Name | Tahiti Pro | Curacao XT |
| Memory | 3072 MB | 2048 MB |
| Core Speed | 800 MHz | 1000 MHz |
| Memory Speed | 5000 MHz | 5600 MHz |
| Power (Max TDP) | 200 watts | 180 watts |
| Bandwidth | 240000 MB/sec | 179200 MB/sec |
| Texel Rate | 89600 Mtexels/sec | 80000 Mtexels/sec |
| Pixel Rate | 25600 Mpixels/sec | 32000 Mpixels/sec |
| Unified Shaders | 1792 | 1280 |
| Texture Mapping Units | 112 | 80 |
| Render Output Units | 32 | 32 |
| Bus Type | GDDR5 | GDDR5 |
| Bus Width | 384-bit | 256-bit |
| Fab Process | 28 nm | 28 nm |
| Transistors | 4313 million | 2800 million |
| Bus | PCIe 3.0 x16 | PCIe 3.0 x16 |
| DirectX Version | DirectX 11.1 | DirectX 11.2 |
| OpenGL Version | OpenGL 4.2 | OpenGL 4.3 |
Memory Bandwidth: Bandwidth is the maximum amount of data (in units of MB per second) that can be moved past the external memory interface within a second. It is calculated 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 better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.
Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed per second. This is calculated by multiplying the total amount of texture units by the core clock speed of the chip. The higher the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.
Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly record to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.
Radeon HD 7950 3GBAmazon.com
Check prices at:
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Radeon R9 270XAmazon.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
2 Responses to “Radeon HD 7950 3GB vs Radeon R9 270X”Love my 7950. Runs BF4 Ultra no MSAA at 60+FPS.
Even though the 7950 is 2 years old, it still beats most of the newer video cards (near price)
It would have been nice if they made the R9 270 with 3GB instead of 2GB. The 179.2 GB/s Memory Bandwidth is more than enough to handle 3GB of V-Ram.
But I am just happy to have a High End R9 Series GPU. So far it's not had any trouble with Ultra settings.