GeForce RTX 3090 vs Radeon R9 270

Intro

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

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 270		150 Watts
GeForce RTX 3090		350 Watts
	Difference: 200 Watts (133%)

Memory Bandwidth

Theoretically speaking, the GeForce RTX 3090 is 435% quicker than the Radeon R9 270 overall, because of its greater data rate. (explain)

GeForce RTX 3090		958668 MB/sec
Radeon R9 270		179200 MB/sec
	Difference: 779468 (435%)

Texel Rate

The GeForce RTX 3090 is quite a bit (about 536%) faster with regards to AF than the Radeon R9 270. (explain)

GeForce RTX 3090		457560 Mtexels/sec
Radeon R9 270		72000 Mtexels/sec
	Difference: 385560 (536%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce RTX 3090 is superior to the Radeon R9 270, by far. (explain)

GeForce RTX 3090		156240 Mpixels/sec
Radeon R9 270		28800 Mpixels/sec
	Difference: 127440 (443%)

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 information (measured in megabytes per second) that can be transported over the external memory interface in a second. It's worked out by multiplying the card's interface width by the speed of its memory. In the case of DDR RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster 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 number of texture map elements (texels) that are applied per second. This number is calculated by multiplying the total texture units by the core speed of the chip. The better the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Raster Operations Pipelines 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 output 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.