GeForce RTX 3080 Ti vs Radeon HD 3690/3830

Intro

Compare all that to the Radeon HD 3690/3830, which features GPU clock speed of 668 MHz, and 256 MB of GDDR3 memory set to run at 828 MHz through a 128-bit bus. It also is comprised of 320(64x5) Stream Processors, 16 TAUs, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 3690/3830		75 Watts
GeForce RTX 3080 Ti		350 Watts
	Difference: 275 Watts (367%)

Memory Bandwidth

In theory, the GeForce RTX 3080 Ti will be 3426% faster than the Radeon HD 3690/3830 overall, because of its greater bandwidth. (explain)

GeForce RTX 3080 Ti		934297 MB/sec
Radeon HD 3690/3830		26496 MB/sec
	Difference: 907801 (3426%)

Texel Rate

The GeForce RTX 3080 Ti should be much (approximately 3987%) better at texture filtering than the Radeon HD 3690/3830. (explain)

GeForce RTX 3080 Ti		436800 Mtexels/sec
Radeon HD 3690/3830		10688 Mtexels/sec
	Difference: 426112 (3987%)

Pixel Rate

The GeForce RTX 3080 Ti should be quite a bit (more or less 1330%) faster with regards to anti-aliasing than the Radeon HD 3690/3830, and also should be capable of handling higher resolutions without slowing down too much. (explain)

GeForce RTX 3080 Ti		152880 Mpixels/sec
Radeon HD 3690/3830		10688 Mpixels/sec
	Difference: 142192 (1330%)

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 max amount of information (in units of MB per second) that can be moved past the external memory interface in one second. The number is worked out by multiplying the card's interface width by the speed of its memory. If the card has DDR type RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster 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 processed in one second. This is worked out by multiplying the total number of texture units by the core clock speed of the chip. The higher this number, the better the video 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 could possibly write to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.