GeForce RTX 3070 vs GeForce RTX 3090

Intro

Compare all that to the GeForce RTX 3090, which comes with a clock speed of 1395 MHz and a GDDR6X memory speed of 1219 MHz. It also features a 384-bit memory bus, and makes use of a 8 nm design. It features 10496 SPUs, 328 Texture Address Units, and 112 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce RTX 3070		220 Watts
GeForce RTX 3090		350 Watts
	Difference: 130 Watts (59%)

Memory Bandwidth

Theoretically speaking, the GeForce RTX 3090 should be -100% quicker than the GeForce RTX 3070 in general, because of its greater bandwidth. (explain)

GeForce RTX 3090		958668 MB/sec
GeForce RTX 3070		(Unknown) MB/sec
	Difference: 958668 (-100%)

Texel Rate

The GeForce RTX 3090 should be quite a bit (about 66%) more effective at AF than the GeForce RTX 3070. (explain)

GeForce RTX 3090		457560 Mtexels/sec
GeForce RTX 3070		276000 Mtexels/sec
	Difference: 181560 (66%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce RTX 3090 is the winner, though only just barely. (explain)

GeForce RTX 3090		156240 Mpixels/sec
GeForce RTX 3070		144000 Mpixels/sec
	Difference: 12240 (9%)

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 data (in units of megabytes per second) that can be moved across the external memory interface in a second. It's calculated by multiplying the bus width by its memory speed. If the card has DDR RAM, it must be multiplied by 2 again. If it uses 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 high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied in one second. This 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 handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

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