 |
 |
Radeon HD 7950 3GB vs Radeon R9 270X
Intro
The Radeon HD 7950 3GB has clock speeds of 800 MHz on the GPU, and 1250 MHz on the 3072 MB of GDDR5 memory. It features 1792 SPUs as well as 112 Texture Address Units and 32 Rasterization Operator Units.Compare those specifications to the Radeon R9 270X, which comes with core speeds of 1000 MHz on the GPU, and 1400 MHz on the 2048 MB of GDDR5 RAM. It features 1280 SPUs along with 80 Texture Address Units and 32 Rasterization Operator Units.
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 |
|
229 Sol/s |
| Radeon R9 270X |
|
177 Sol/s |
|
|
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| Radeon R9 270X |
|
180 Watts |
| Radeon HD 7950 3GB |
|
200 Watts |
|
|
Memory Bandwidth
Theoretically, the Radeon HD 7950 3GB should be a lot faster than the Radeon R9 270X in general. (explain)
| Radeon HD 7950 3GB |
|
240000 MB/sec |
| Radeon R9 270X |
|
179200 MB/sec |
|
|
Texel Rate
The Radeon HD 7950 3GB is a little bit (more or less 12%) faster with regards to AF than the Radeon R9 270X. (explain)| Radeon HD 7950 3GB |
|
89600 Mtexels/sec |
| Radeon R9 270X |
|
80000 Mtexels/sec |
|
|
Pixel Rate
The Radeon R9 270X should be much (approximately 25%) faster with regards to FSAA than the Radeon HD 7950 3GB, and also will be able to handle higher resolutions without slowing down too much. (explain)| Radeon R9 270X |
|
32000 Mpixels/sec |
| Radeon HD 7950 3GB |
|
25600 Mpixels/sec |
|
|
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
Check prices at:
|
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.
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: Memory bandwidth is the maximum amount of data (counted in megabytes per second) that can be transferred past the external memory interface in a second. The number is worked out by multiplying the bus width by the speed of its memory. If the card has DDR RAM, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, 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 texture map elements (texels) that are processed in one second. This number is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The higher the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.
Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.
Radeon HD 7950 3GBAmazon.com
Check prices at:
|
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.