GeForce 820M vs GeForce RTX 3060

Intro

Compare those specs to the GeForce RTX 3060, which has GPU core speed of 1320 MHz, and (Unknown) MB of GDDR6 RAM set to run at 1875 MHz through a 192-bit bus. It also features 3584 SPUs, 112 TAUs, and 48 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 820M		15 Watts
GeForce RTX 3060		170 Watts
	Difference: 155 Watts (1033%)

Memory Bandwidth

Performance-wise, the GeForce RTX 3060 should theoretically be much better than the GeForce 820M overall. (explain)

GeForce RTX 3060		368640 MB/sec
GeForce 820M		16000 MB/sec
	Difference: 352640 (2204%)

Texel Rate

The GeForce RTX 3060 is a lot (more or less 1185%) more effective at anisotropic filtering than the GeForce 820M. (explain)

GeForce RTX 3060		147840 Mtexels/sec
GeForce 820M		11504 Mtexels/sec
	Difference: 136336 (1185%)

Pixel Rate

The GeForce RTX 3060 should be quite a bit (approximately 2103%) better at anti-aliasing than the GeForce 820M, and capable of handling higher screen resolutions without losing too much performance. (explain)

GeForce RTX 3060		63360 Mpixels/sec
GeForce 820M		2876 Mpixels/sec
	Difference: 60484 (2103%)

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 maximum amount of data (counted in megabytes per second) that can be transported past the external memory interface in one second. It is calculated by multiplying the interface width by its memory speed. In the case of DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied per second. This number is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The better the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

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