Radeon R9 380X vs Radeon RX 6800

Intro

Compare all that to the Radeon RX 6800, which features a core clock speed of 1700 MHz and a GDDR6 memory speed of 2000 MHz. It also uses a 256-bit bus, and makes use of a 7 nm design. It is comprised of 3840 SPUs, 240 Texture Address Units, and 96 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 380X		190 Watts
Radeon RX 6800		250 Watts
	Difference: 60 Watts (32%)

Memory Bandwidth

In theory, the Radeon RX 6800 will be 187% faster than the Radeon R9 380X in general, due to its greater data rate. (explain)

Radeon RX 6800		524288 MB/sec
Radeon R9 380X		182400 MB/sec
	Difference: 341888 (187%)

Texel Rate

The Radeon RX 6800 is quite a bit (more or less 229%) more effective at anisotropic filtering than the Radeon R9 380X. (explain)

Radeon RX 6800		408000 Mtexels/sec
Radeon R9 380X		124160 Mtexels/sec
	Difference: 283840 (229%)

Pixel Rate

If running with high levels of AA is important to you, then the Radeon RX 6800 is the winner, by a large margin. (explain)

Radeon RX 6800		163200 Mpixels/sec
Radeon R9 380X		31040 Mpixels/sec
	Difference: 132160 (426%)

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 largest amount of information (counted in megabytes per second) that can be transported across the external memory interface within a second. It's worked out by multiplying the interface width by its memory clock speed. In the case of DDR type RAM, it must 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 AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum 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 this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the video 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 amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka 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 reach the maximum fill rate.