Radeon HD 7850 vs Radeon R9 270X

Intro

Compare all of that to the Radeon R9 270X, which comes with a clock frequency of 1000 MHz and a GDDR5 memory speed of 1400 MHz. It also uses a 256-bit bus, and uses a 28 nm design. It features 1280 SPUs, 80 Texture Address Units, and 32 ROPs.

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

As far as performance goes, the Radeon R9 270X should theoretically be just a bit better than the Radeon HD 7850 overall. (explain)

Radeon R9 270X		179200 MB/sec
Radeon HD 7850		153600 MB/sec
	Difference: 25600 (17%)

Texel Rate

The Radeon R9 270X will be quite a bit (more or less 45%) more effective at anisotropic filtering 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 bit (more or less 16%) more effective at anti-aliasing than the Radeon HD 7850, and will be capable of handling 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.

Price Comparison

Specifications

Memory Bandwidth: Bandwidth is the maximum amount of information (measured in MB per second) that can be moved past the external memory interface in a second. It is calculated by multiplying the card's bus width by its memory speed. If it uses DDR type memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied per second. This is calculated by multiplying the total 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 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 chip can possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.