GeForce GTX 780 Ti vs GeForce RTX 3090

Intro

Compare all that to the GeForce RTX 3090, which has core speeds of 1395 MHz on the GPU, and 1219 MHz on the 24576 MB of GDDR6X RAM. It features 10496 SPUs as well as 328 Texture Address Units and 112 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 780 Ti		250 Watts
GeForce RTX 3090		350 Watts
	Difference: 100 Watts (40%)

Memory Bandwidth

The GeForce RTX 3090 should theoretically be a lot faster than the GeForce GTX 780 Ti in general. (explain)

GeForce RTX 3090		958668 MB/sec
GeForce GTX 780 Ti		336000 MB/sec
	Difference: 622668 (185%)

Texel Rate

The GeForce RTX 3090 is quite a bit (approximately 118%) faster with regards to texture filtering than the GeForce GTX 780 Ti. (explain)

GeForce RTX 3090		457560 Mtexels/sec
GeForce GTX 780 Ti		210000 Mtexels/sec
	Difference: 247560 (118%)

Pixel Rate

The GeForce RTX 3090 will be a lot (more or less 272%) faster with regards to full screen anti-aliasing than the GeForce GTX 780 Ti, and should be able to handle higher screen resolutions better. (explain)

GeForce RTX 3090		156240 Mpixels/sec
GeForce GTX 780 Ti		42000 Mpixels/sec
	Difference: 114240 (272%)

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: Bandwidth is the largest amount of information (measured in MB per second) that can be transferred past the external memory interface within a second. It is worked out by multiplying the card's interface width by the speed of its memory. If it uses DDR type memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly write to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.