Radeon HD 7850 vs Radeon R9 270X

Intro

Compare all that to the Radeon R9 270X, which uses a 28 nm design. AMD has clocked the core speed at 1000 MHz. The GDDR5 memory works at a frequency of 1400 MHz on this particular model. It features 1280 SPUs as well as 80 TAUs and 32 Rasterization Operator Units.

Display Graphs

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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.

3DMark Fire Strike Graphics Score

Radeon R9 270X		6590 points
Radeon HD 7850		5200 points
	Difference: 1390 (27%)

Zcash Mining Hash Rate

Radeon R9 270X		177 Sol/s
Radeon HD 7850		171 Sol/s
	Difference: 6 (4%)

Ethereum Mining Hash Rate

Radeon R9 270X		18 Mh/s
Radeon HD 7850		13 Mh/s
	Difference: 5 (38%)

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

Theoretically speaking, the Radeon R9 270X should be a little bit faster 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 will be much (more or less 45%) faster with regards to texture filtering than the Radeon HD 7850. (explain)

Radeon R9 270X		80000 Mtexels/sec
Radeon HD 7850		55040 Mtexels/sec
	Difference: 24960 (45%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon R9 270X is superior to the Radeon HD 7850, but not by far. (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.

Price Comparison

Specifications

Memory Bandwidth: Bandwidth is the max amount of information (in units of megabytes per second) that can be transported across the external memory interface in one second. It's worked out by multiplying the card's interface width by its memory speed. In the case of DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied in one second. This number is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The higher this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly write to the local memory per 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 drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.