Radeon R9 380 2G vs Radeon RX 6800

Intro

Compare 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 memory bus, and uses a 7 nm design. It is made up of 3840 SPUs, 240 TAUs, and 96 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 380 2G		190 Watts
Radeon RX 6800		250 Watts
	Difference: 60 Watts (32%)

Memory Bandwidth

Theoretically, the Radeon RX 6800 should be much faster than the Radeon R9 380 2G overall. (explain)

Radeon RX 6800		524288 MB/sec
Radeon R9 380 2G		182400 MB/sec
	Difference: 341888 (187%)

Texel Rate

The Radeon RX 6800 is much (approximately 276%) more effective at AF than the Radeon R9 380 2G. (explain)

Radeon RX 6800		408000 Mtexels/sec
Radeon R9 380 2G		108640 Mtexels/sec
	Difference: 299360 (276%)

Pixel Rate

The Radeon RX 6800 should be quite a bit (approximately 426%) faster with regards to AA than the Radeon R9 380 2G, and also should be able to handle higher screen resolutions without slowing down too much. (explain)

Radeon RX 6800		163200 Mpixels/sec
Radeon R9 380 2G		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: Memory bandwidth is the maximum amount of information (counted in megabytes per second) that can be transported over the external memory interface in a second. It's calculated by multiplying the bus width by its memory clock speed. If it uses DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied per second. This number is worked out by multiplying the total texture units of the card by the core speed of the chip. The higher this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one 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. Pixel rate 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 filling the screen with pixels (the image). The actual pixel rate also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.