Radeon R9 380 2G vs Radeon RX 6500 XT

Intro

Compare those specs to the Radeon RX 6500 XT, which features a GPU core clock speed of 2200 MHz, and 4096 MB of GDDR6 RAM set to run at 2250 MHz through a 64-bit bus. It also is made up of 1024 SPUs, 64 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 6500 XT		107 Watts
Radeon R9 380 2G		190 Watts
	Difference: 83 Watts (78%)

Memory Bandwidth

The Radeon R9 380 2G should theoretically perform a lot faster than the Radeon RX 6500 XT overall. (explain)

Radeon R9 380 2G		182400 MB/sec
Radeon RX 6500 XT		147456 MB/sec
	Difference: 34944 (24%)

Texel Rate

The Radeon RX 6500 XT is much (about 30%) better at AF than the Radeon R9 380 2G. (explain)

Radeon RX 6500 XT		140800 Mtexels/sec
Radeon R9 380 2G		108640 Mtexels/sec
	Difference: 32160 (30%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon RX 6500 XT is superior to the Radeon R9 380 2G, and very much so. (explain)

Radeon RX 6500 XT		70400 Mpixels/sec
Radeon R9 380 2G		31040 Mpixels/sec
	Difference: 39360 (127%)

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 data (counted in megabytes per second) that can be transferred across the external memory interface in a second. The number is calculated by multiplying the interface width by its memory clock speed. If it uses DDR RAM, the result should be multiplied by 2 once again. If it uses 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 higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly record to the local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.