GeForce RTX 4080 vs Radeon R9 270

Intro

Compare those specifications to the Radeon R9 270, which features core speeds of 900 MHz on the GPU, and 1400 MHz on the 2048 MB of GDDR5 memory. It features 1280 SPUs as well as 80 TAUs and 32 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 270		150 Watts
GeForce RTX 4080		320 Watts
	Difference: 170 Watts (113%)

Memory Bandwidth

As far as performance goes, the GeForce RTX 4080 should theoretically be quite a bit better than the Radeon R9 270 in general. (explain)

GeForce RTX 4080		734003 MB/sec
Radeon R9 270		179200 MB/sec
	Difference: 554803 (310%)

Texel Rate

The GeForce RTX 4080 will be a lot (about 831%) more effective at texture filtering than the Radeon R9 270. (explain)

GeForce RTX 4080		670320 Mtexels/sec
Radeon R9 270		72000 Mtexels/sec
	Difference: 598320 (831%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce RTX 4080 is the winner, by far. (explain)

GeForce RTX 4080		246960 Mpixels/sec
Radeon R9 270		28800 Mpixels/sec
	Difference: 218160 (758%)

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 (counted in megabytes per second) that can be moved across the external memory interface in a second. The number is calculated by multiplying the card's bus width by its memory speed. In the case of DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly record to its 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 core clock speed. 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 rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.