Radeon R9 270X vs Radeon R9 380 4G

Intro

Compare those specifications to the Radeon R9 380 4G, which uses a 28 nm design. AMD has clocked the core frequency at 970 MHz. The GDDR5 memory is set to run at a frequency of 1425 MHz on this model. It features 1792 SPUs along with 112 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 380 4G		8837 points
Radeon R9 270X		6590 points
	Difference: 2247 (34%)

Ethereum Mining Hash Rate

Radeon R9 380 4G		21 Mh/s
Radeon R9 270X		18 Mh/s
	Difference: 3 (17%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 270X		180 Watts
Radeon R9 380 4G		190 Watts
	Difference: 10 Watts (6%)

Memory Bandwidth

The Radeon R9 380 4G, in theory, should perform just a bit faster than the Radeon R9 270X overall. (explain)

Radeon R9 380 4G		182400 MB/sec
Radeon R9 270X		179200 MB/sec
	Difference: 3200 (2%)

Texel Rate

The Radeon R9 380 4G is a lot (more or less 36%) better at texture filtering than the Radeon R9 270X. (explain)

Radeon R9 380 4G		108640 Mtexels/sec
Radeon R9 270X		80000 Mtexels/sec
	Difference: 28640 (36%)

Pixel Rate

If using a high screen resolution is important to you, then the Radeon R9 270X is a better choice, but not by far. (explain)

Radeon R9 270X		32000 Mpixels/sec
Radeon R9 380 4G		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: Bandwidth is the maximum amount of information (in units of MB per second) that can be transferred past the external memory interface within a second. The number is calculated by multiplying the bus width by its memory speed. If the card has DDR memory, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster 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 texture map elements (texels) that are processed per second. This number is calculated by multiplying the total number of texture units of the card by the core clock 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 most pixels the graphics card could possibly write to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.