Radeon R9 380 2G vs Radeon RX 6800

Intro

Compare those specifications to the Radeon RX 6800, which comes with clock speeds of 1700 MHz on the GPU, and 2000 MHz on the 16384 MB of GDDR6 memory. It features 3840 SPUs along with 240 TAUs and 96 ROPs.

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

In theory, the Radeon RX 6800 should perform 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 should be a lot (more or less 276%) faster with regards to 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

If running with a high resolution is important to you, then the Radeon RX 6800 is a better choice, by a large margin. (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 max amount of information (measured in megabytes per second) that can be transported past the external memory interface within a second. The number is calculated by multiplying the card's bus width by its memory speed. In the case of DDR memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied per second. This number is worked out by multiplying the total texture units by the core speed of the chip. The better this number, the better the 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 maximum number of pixels the graphics card can possibly record to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.