Radeon HD 7850 vs Radeon R9 270X

Intro

Compare that to the Radeon R9 270X, which features a core clock speed of 1000 MHz and a GDDR5 memory speed of 1400 MHz. It also makes use of a 256-bit memory bus, and makes use of a 28 nm design. It is comprised of 1280 SPUs, 80 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

Hide Graphs

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 in theory 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 (approximately 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 using lots of anti-aliasing is important to you, then the Radeon R9 270X is the winner, though 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: Memory bandwidth is the max amount of information (counted in megabytes per second) that can be moved across the external memory interface within a second. It is calculated by multiplying the interface width by the speed of its memory. If it uses DDR RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly record to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.