GeForce RTX 3080 vs GeForce RTX 3090

Intro

Compare all that to the GeForce RTX 3090, which has GPU core speed of 1395 MHz, and 24576 MB of GDDR6X RAM set to run at 1219 MHz through a 384-bit bus. It also is made up of 10496 Stream Processors, 328 TAUs, and 112 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce RTX 3080		320 Watts
GeForce RTX 3090		350 Watts
	Difference: 30 Watts (9%)

Memory Bandwidth

The GeForce RTX 3090 should in theory perform much faster than the GeForce RTX 3080 overall. (explain)

GeForce RTX 3090		958668 MB/sec
GeForce RTX 3080		778547 MB/sec
	Difference: 180121 (23%)

Texel Rate

The GeForce RTX 3090 will be a little bit (more or less 17%) faster with regards to AF than the GeForce RTX 3080. (explain)

GeForce RTX 3090		457560 Mtexels/sec
GeForce RTX 3080		391680 Mtexels/sec
	Difference: 65880 (17%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce RTX 3090 is a better choice, but not by far. (explain)

GeForce RTX 3090		156240 Mpixels/sec
GeForce RTX 3080		138240 Mpixels/sec
	Difference: 18000 (13%)

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 data (measured in MB per second) that can be transferred over the external memory interface in one second. The number is calculated by multiplying the card's bus width by the speed of its memory. If the card has DDR RAM, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied in one second. This is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The higher this number, 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 that the graphics card could possibly write to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.