Radeon HD 7850 vs Radeon R9 270X
Radeon HD 7850 vs Radeon R9 270X
Intro
The Radeon HD 7850 comes with a GPU core speed of 860 MHz, and the 2048 MB of GDDR5 RAM runs at 1200 MHz through a 256-bit bus. It also is made up of 1024 SPUs, 64 Texture Address Units, and 32 Raster Operation Units.
Compare all that to the Radeon R9 270X, which features a core clock frequency of 1000 MHz and a GDDR5 memory frequency of 1400 MHz. It also features a 256-bit memory bus, and makes use of a 28 nm design. It is made up of 1280 SPUs, 80 Texture Address Units, and 32 Raster Operation Units.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
Radeon HD 7850 | ![]() |
130 Watts |
Radeon R9 270X | ![]() |
180 Watts |
Difference: 50 Watts (38%) |
Memory Bandwidth
Performance-wise, the Radeon R9 270X should in theory be a small bit better than the Radeon HD 7850 in general. (explain)
Radeon R9 270X | ![]() |
179200 MB/sec |
Radeon HD 7850 | ![]() |
153600 MB/sec |
Difference: 25600 (17%) |
Texel Rate
The Radeon R9 270X is much (approximately 45%) more effective at AF than the Radeon HD 7850. (explain)
Radeon R9 270X | ![]() |
80000 Mtexels/sec |
Radeon HD 7850 | ![]() |
55040 Mtexels/sec |
Difference: 24960 (45%) |
Pixel Rate
The Radeon R9 270X should be a little bit (more or less 16%) more effective at full screen anti-aliasing than the Radeon HD 7850, and will be able to handle higher resolutions more effectively. (explain)
Radeon R9 270X | ![]() |
32000 Mpixels/sec |
Radeon HD 7850 | ![]() |
27520 Mpixels/sec |
Difference: 4480 (16%) |
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.
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