Radeon R9 380 4G vs Radeon RX 5700 XT

Intro

Compare those specifications to the Radeon RX 5700 XT, which features a GPU core clock speed of 1605 MHz, and 8096 MB of GDDR6 memory set to run at 1750 MHz through a 256-bit bus. It also is made up of 2560 SPUs, 160 TAUs, and 64 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 380 4G		190 Watts
Radeon RX 5700 XT		225 Watts
	Difference: 35 Watts (18%)

Memory Bandwidth

The Radeon RX 5700 XT should in theory perform much faster than the Radeon R9 380 4G in general. (explain)

Radeon RX 5700 XT		458752 MB/sec
Radeon R9 380 4G		182400 MB/sec
	Difference: 276352 (152%)

Texel Rate

The Radeon RX 5700 XT is a lot (more or less 136%) faster with regards to AF than the Radeon R9 380 4G. (explain)

Radeon RX 5700 XT		256800 Mtexels/sec
Radeon R9 380 4G		108640 Mtexels/sec
	Difference: 148160 (136%)

Pixel Rate

If using a high resolution is important to you, then the Radeon RX 5700 XT is the winner, by a large margin. (explain)

Radeon RX 5700 XT		102720 Mpixels/sec
Radeon R9 380 4G		31040 Mpixels/sec
	Difference: 71680 (231%)

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 data (measured in megabytes per second) that can be moved across the external memory interface in a second. It's worked out by multiplying the card's bus width by its memory speed. If it uses DDR memory, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied in one second. This figure is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The better the texel rate, the better the video 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 maximum amount of pixels the graphics card could possibly record to the local memory in one second - measured in millions of pixels per second. The figure 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 drawing the pixels (image) on the screen. The actual pixel fill rate also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.