GeForce GTX 465 vs GeForce RTX 3080 12 GB

Intro

Compare those specifications to the GeForce RTX 3080 12 GB, which comes with a core clock frequency of 1260 MHz and a GDDR6X memory speed of 1188 MHz. It also uses a 384-bit memory bus, and uses a 8 nm design. It features 8960 SPUs, 280 TAUs, and 112 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 465		200 Watts
GeForce RTX 3080 12 GB		350 Watts
	Difference: 150 Watts (75%)

Memory Bandwidth

Theoretically speaking, the GeForce RTX 3080 12 GB is 811% quicker than the GeForce GTX 465 overall, due to its greater data rate. (explain)

GeForce RTX 3080 12 GB		934298 MB/sec
GeForce GTX 465		102592 MB/sec
	Difference: 831706 (811%)

Texel Rate

The GeForce RTX 3080 12 GB will be a lot (about 1221%) faster with regards to texture filtering than the GeForce GTX 465. (explain)

GeForce RTX 3080 12 GB		352800 Mtexels/sec
GeForce GTX 465		26708 Mtexels/sec
	Difference: 326092 (1221%)

Pixel Rate

The GeForce RTX 3080 12 GB should be quite a bit (more or less 627%) faster with regards to AA than the GeForce GTX 465, and will be able to handle higher resolutions without losing too much performance. (explain)

GeForce RTX 3080 12 GB		141120 Mpixels/sec
GeForce GTX 465		19424 Mpixels/sec
	Difference: 121696 (627%)

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 maximum amount of data (counted in megabytes per second) that can be transferred over the external memory interface within a second. It's calculated by multiplying the interface width by its memory clock speed. If the card has DDR memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the card's 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 can be applied per second. This number is calculated by multiplying the total number of texture units by the core speed of the chip. The better the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly record to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.