Radeon R9 270 vs Radeon R9 380X

Intro

Compare all that to the Radeon R9 380X, which features GPU clock speed of 970 MHz, and 4096 MB of GDDR5 memory running at 1425 MHz through a 256-bit bus. It also features 2048 Stream Processors, 128 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 380X		9519 points
Radeon R9 270		5943 points
	Difference: 3576 (60%)

Ethereum Mining Hash Rate

Radeon R9 380X		19 Mh/s
Radeon R9 270		15 Mh/s
	Difference: 4 (27%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 270		150 Watts
Radeon R9 380X		190 Watts
	Difference: 40 Watts (27%)

Memory Bandwidth

Theoretically, the Radeon R9 380X should perform just a bit faster than the Radeon R9 270 in general. (explain)

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

Texel Rate

The Radeon R9 380X should be much (approximately 72%) faster with regards to anisotropic filtering than the Radeon R9 270. (explain)

Radeon R9 380X		124160 Mtexels/sec
Radeon R9 270		72000 Mtexels/sec
	Difference: 52160 (72%)

Pixel Rate

If running with high levels of AA is important to you, then the Radeon R9 380X is superior to the Radeon R9 270, but not by far. (explain)

Radeon R9 380X		31040 Mpixels/sec
Radeon R9 270		28800 Mpixels/sec
	Difference: 2240 (8%)

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 largest amount of data (measured in MB per second) that can be transferred past the external memory interface in a second. It is worked out by multiplying the card's bus width by its memory clock speed. If the card has DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the 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 number of texture map elements (texels) that are processed in one second. This figure is worked out by multiplying the total amount of texture units of the card by the core clock speed of the chip. The better the texel rate, the better the 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 most pixels the video card can possibly record to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of colour ROPs by the the card's clock speed. 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 bandwidth is, the lower the ability to reach the max fill rate.