Radeon R9 290X vs Radeon R9 380X

Intro

Compare all that to the Radeon R9 380X, which has GPU core speed of 970 MHz, and 4096 MB of GDDR5 RAM set to run at 1425 MHz through a 256-bit bus. It also features 2048 Stream Processors, 128 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 290X		10609 points
Radeon R9 380X		9519 points
	Difference: 1090 (11%)

Ethereum Mining Hash Rate

Radeon R9 290X		29 Mh/s
Radeon R9 380X		19 Mh/s
	Difference: 10 (53%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 380X		190 Watts
Radeon R9 290X		300 Watts
	Difference: 110 Watts (58%)

Memory Bandwidth

Theoretically, the Radeon R9 290X should be quite a bit faster than the Radeon R9 380X in general. (explain)

Radeon R9 290X		320000 MB/sec
Radeon R9 380X		182400 MB/sec
	Difference: 137600 (75%)

Texel Rate

The Radeon R9 290X will be a bit (approximately 13%) more effective at AF than the Radeon R9 380X. (explain)

Radeon R9 290X		140800 Mtexels/sec
Radeon R9 380X		124160 Mtexels/sec
	Difference: 16640 (13%)

Pixel Rate

The Radeon R9 290X is quite a bit (approximately 65%) faster with regards to full screen anti-aliasing than the Radeon R9 380X, and able to handle higher screen resolutions without losing too much performance. (explain)

Radeon R9 290X		51200 Mpixels/sec
Radeon R9 380X		31040 Mpixels/sec
	Difference: 20160 (65%)

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 maximum amount of information (counted in megabytes per second) that can be moved across the external memory interface within a second. It is calculated by multiplying the interface width by its memory speed. If the card has DDR type RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly write to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.