Radeon R9 280X vs Radeon R9 380 2G

Intro

Compare those specs to the Radeon R9 380 2G, which features a core clock speed of 970 MHz and a GDDR5 memory speed of 1425 MHz. It also makes use of a 256-bit memory bus, and makes use of a 28 nm design. It is made up of 1792 SPUs, 112 TAUs, and 32 ROPs.

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 280X		8886 points
Radeon R9 380 2G		8850 points
	Difference: 36 (0%)

Ethereum Mining Hash Rate

Radeon R9 280X		21 Mh/s
Radeon R9 380 2G		19 Mh/s
	Difference: 2 (11%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 380 2G		190 Watts
Radeon R9 280X		250 Watts
	Difference: 60 Watts (32%)

Memory Bandwidth

In theory, the Radeon R9 280X should perform much faster than the Radeon R9 380 2G overall. (explain)

Radeon R9 280X		288000 MB/sec
Radeon R9 380 2G		182400 MB/sec
	Difference: 105600 (58%)

Texel Rate

The Radeon R9 280X will be a small bit (approximately 0%) faster with regards to AF than the Radeon R9 380 2G. (explain)

Radeon R9 280X		108800 Mtexels/sec
Radeon R9 380 2G		108640 Mtexels/sec
	Difference: 160 (0%)

Pixel Rate

If running with 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 280X		27200 Mpixels/sec
	Difference: 3840 (14%)

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 max amount of data (in units of MB per second) that can be transported past the external memory interface in one second. It is worked out by multiplying the card's bus width by its memory speed. If the card has DDR type memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can 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 Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.