GeForce RTX 2080 SUPER vs Radeon R9 270

Intro

Compare those specs to the Radeon R9 270, which comes with GPU core speed of 900 MHz, and 2048 MB of GDDR5 memory set to run at 1400 MHz through a 256-bit bus. It also is comprised of 1280 Stream Processors, 80 TAUs, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 270		150 Watts
GeForce RTX 2080 SUPER		250 Watts
	Difference: 100 Watts (67%)

Memory Bandwidth

As far as performance goes, the GeForce RTX 2080 SUPER should in theory be a lot better than the Radeon R9 270 in general. (explain)

GeForce RTX 2080 SUPER		507904 MB/sec
Radeon R9 270		179200 MB/sec
	Difference: 328704 (183%)

Texel Rate

The GeForce RTX 2080 SUPER is quite a bit (approximately 340%) more effective at texture filtering than the Radeon R9 270. (explain)

GeForce RTX 2080 SUPER		316800 Mtexels/sec
Radeon R9 270		72000 Mtexels/sec
	Difference: 244800 (340%)

Pixel Rate

The GeForce RTX 2080 SUPER should be quite a bit (approximately 267%) better at AA than the Radeon R9 270, and should be capable of handling higher screen resolutions without slowing down too much. (explain)

GeForce RTX 2080 SUPER		105600 Mpixels/sec
Radeon R9 270		28800 Mpixels/sec
	Difference: 76800 (267%)

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 data (in units of MB per second) that can be transported over the external memory interface within a second. It's worked out by multiplying the card's bus width by the speed of its memory. If the card has DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher 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 amount of texture map elements (texels) that can be applied in one second. This figure is worked out by multiplying the total amount of texture units of the card by the core clock speed of the chip. The better the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.