GeForce RTX 2080 vs Radeon R9 M385X

Intro

Compare all that to the Radeon R9 M385X, which makes use of a 28 nm design. AMD has set the core frequency at 1100 MHz. The GDDR5 RAM works at a frequency of 1500 MHz on this particular model. It features 896 SPUs as well as 56 Texture Address Units and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically, the GeForce RTX 2080 should perform a lot faster than the Radeon R9 M385X in general. (explain)

GeForce RTX 2080		458752 MB/sec
Radeon R9 M385X		96000 MB/sec
	Difference: 362752 (378%)

Texel Rate

The GeForce RTX 2080 will be a lot (approximately 353%) better at AF than the Radeon R9 M385X. (explain)

GeForce RTX 2080		278760 Mtexels/sec
Radeon R9 M385X		61600 Mtexels/sec
	Difference: 217160 (353%)

Pixel Rate

The GeForce RTX 2080 should be a lot (approximately 451%) better at FSAA than the Radeon R9 M385X, and will be able to handle higher screen resolutions while still performing well. (explain)

GeForce RTX 2080		96960 Mpixels/sec
Radeon R9 M385X		17600 Mpixels/sec
	Difference: 79360 (451%)

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 largest amount of information (measured in MB per second) that can be transported past the external memory interface in one second. It's calculated by multiplying the card's interface width by its memory speed. If it uses DDR memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed per second. This number 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 card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the most pixels the video card could possibly write to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of Render Output Units 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 rate is also dependant on many 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.