Radeon R9 270 vs Radeon R9 380 2G

Intro

Compare those specs to the Radeon R9 380 2G, which has GPU core speed of 970 MHz, and 2048 MB of GDDR5 memory running at 1425 MHz through a 256-bit bus. It also is comprised of 1792 SPUs, 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 270		5943 points
	Difference: 2907 (49%)

Ethereum Mining Hash Rate

Radeon R9 380 2G		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 380 2G		190 Watts
	Difference: 40 Watts (27%)

Memory Bandwidth

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

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

Texel Rate

The Radeon R9 380 2G is quite a bit (approximately 51%) better at AF than the Radeon R9 270. (explain)

Radeon R9 380 2G		108640 Mtexels/sec
Radeon R9 270		72000 Mtexels/sec
	Difference: 36640 (51%)

Pixel Rate

If using a high resolution is important to you, then the Radeon R9 380 2G is a better choice, though not by far. (explain)

Radeon R9 380 2G		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 information (measured in MB per second) that can be moved past the external memory interface in one second. It is worked out by multiplying the card's interface width by its memory speed. If it uses DDR memory, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the 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 amount of texture map elements (texels) that can be applied in one second. This figure is calculated by multiplying the total number of texture units by the core clock 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 in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly write to its local memory in one second - measured in millions of pixels per second. The figure is worked out 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 output rate is also dependant on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.