GeForce RTX 2080 SUPER vs Radeon R5 M255

Intro

Compare all of that to the Radeon R5 M255, which features a GPU core clock speed of 940 MHz, and 2048 MB of DDR3 memory set to run at 1000 MHz through a 64-bit bus. It also is made up of 320 Stream Processors, 20 TAUs, and 8 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

The GeForce RTX 2080 SUPER, in theory, should be much faster than the Radeon R5 M255 in general. (explain)

GeForce RTX 2080 SUPER		507904 MB/sec
Radeon R5 M255		16000 MB/sec
	Difference: 491904 (3074%)

Texel Rate

The GeForce RTX 2080 SUPER is much (approximately 1585%) more effective at anisotropic filtering than the Radeon R5 M255. (explain)

GeForce RTX 2080 SUPER		316800 Mtexels/sec
Radeon R5 M255		18800 Mtexels/sec
	Difference: 298000 (1585%)

Pixel Rate

The GeForce RTX 2080 SUPER is much (about 1304%) better at FSAA than the Radeon R5 M255, and also should be able to handle higher screen resolutions while still performing well. (explain)

GeForce RTX 2080 SUPER		105600 Mpixels/sec
Radeon R5 M255		7520 Mpixels/sec
	Difference: 98080 (1304%)

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 (in units of MB per second) that can be moved across the external memory interface within a second. The number is worked out by multiplying the interface width by its memory speed. In the case of DDR memory, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends 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.