Radeon R9 270X vs Radeon R9 380 2G

Intro

Compare that to the Radeon R9 380 2G, which makes use of a 28 nm design. AMD has clocked the core speed at 970 MHz. The GDDR5 RAM is set to run at a frequency of 1425 MHz on this particular model. It features 1792 SPUs as well as 112 TAUs 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 380 2G		8850 points
Radeon R9 270X		6590 points
	Difference: 2260 (34%)

Ethereum Mining Hash Rate

Radeon R9 380 2G		19 Mh/s
Radeon R9 270X		18 Mh/s
	Difference: 1 (6%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 270X		180 Watts
Radeon R9 380 2G		190 Watts
	Difference: 10 Watts (6%)

Memory Bandwidth

The Radeon R9 380 2G should in theory perform a small bit faster than the Radeon R9 270X in general. (explain)

Radeon R9 380 2G		182400 MB/sec
Radeon R9 270X		179200 MB/sec
	Difference: 3200 (2%)

Texel Rate

The Radeon R9 380 2G is a lot (approximately 36%) more effective at AF than the Radeon R9 270X. (explain)

Radeon R9 380 2G		108640 Mtexels/sec
Radeon R9 270X		80000 Mtexels/sec
	Difference: 28640 (36%)

Pixel Rate

The Radeon R9 270X should be just a bit (approximately 3%) better at full screen anti-aliasing than the Radeon R9 380 2G, and able to handle higher screen resolutions more effectively. (explain)

Radeon R9 270X		32000 Mpixels/sec
Radeon R9 380 2G		31040 Mpixels/sec
	Difference: 960 (3%)

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 over the external memory interface in one second. It's calculated by multiplying the card's bus width by its memory speed. If the card has DDR memory, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out 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 outputting the pixels (image) to the screen. The actual pixel output rate also depends on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.