GeForce RTX 3090 vs Radeon R9 380X

Intro

Compare all that to the Radeon R9 380X, which comes with core speeds of 970 MHz on the GPU, and 1425 MHz on the 4096 MB of GDDR5 RAM. It features 2048 SPUs as well as 128 Texture Address Units and 32 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 380X		190 Watts
GeForce RTX 3090		350 Watts
	Difference: 160 Watts (84%)

Memory Bandwidth

Theoretically speaking, the GeForce RTX 3090 should perform a lot faster than the Radeon R9 380X overall. (explain)

GeForce RTX 3090		958668 MB/sec
Radeon R9 380X		182400 MB/sec
	Difference: 776268 (426%)

Texel Rate

The GeForce RTX 3090 will be a lot (approximately 269%) more effective at texture filtering than the Radeon R9 380X. (explain)

GeForce RTX 3090		457560 Mtexels/sec
Radeon R9 380X		124160 Mtexels/sec
	Difference: 333400 (269%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce RTX 3090 is a better choice, by a large margin. (explain)

GeForce RTX 3090		156240 Mpixels/sec
Radeon R9 380X		31040 Mpixels/sec
	Difference: 125200 (403%)

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 (in units of MB per second) that can be transported past the external memory interface in a second. It's calculated by multiplying the bus width by its memory speed. If the card has DDR type memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This number is calculated by multiplying the total amount of texture units by the core speed of the chip. The higher the texel rate, the better the 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 maximum number of pixels that 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 colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.