Radeon R9 380X vs Radeon RX 5500

Intro

Compare that to the Radeon RX 5500, which has GPU core speed of 1670 MHz, and 4096 MB of GDDR6 memory set to run at 1750 MHz through a 128-bit bus. It also is made up of 1408 SPUs, 88 TAUs, and 32 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 5500		150 Watts
Radeon R9 380X		190 Watts
	Difference: 40 Watts (27%)

Memory Bandwidth

In theory, the Radeon RX 5500 should be quite a bit faster than the Radeon R9 380X in general. (explain)

Radeon RX 5500		229376 MB/sec
Radeon R9 380X		182400 MB/sec
	Difference: 46976 (26%)

Texel Rate

The Radeon RX 5500 should be just a bit (more or less 18%) better at texture filtering than the Radeon R9 380X. (explain)

Radeon RX 5500		146960 Mtexels/sec
Radeon R9 380X		124160 Mtexels/sec
	Difference: 22800 (18%)

Pixel Rate

The Radeon RX 5500 should be much (approximately 72%) better at FSAA than the Radeon R9 380X, and also capable of handling higher resolutions without losing too much performance. (explain)

Radeon RX 5500		53440 Mpixels/sec
Radeon R9 380X		31040 Mpixels/sec
	Difference: 22400 (72%)

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 (measured in MB per second) that can be transported across the external memory interface in a second. It is worked out by multiplying the card's interface width by its memory speed. If the card has DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied per second. This is worked out by multiplying the total texture units of the card 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 a second.

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly record to the 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 the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output 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 get to the maximum fill rate.