GeForce GTX 870M vs GeForce RTX 2080 SUPER

Intro

Compare those specs to the GeForce RTX 2080 SUPER, which uses a 12 nm design. nVidia has clocked the core frequency at 1650 MHz. The GDDR6 RAM works at a speed of 1937 MHz on this specific model. It features 3072 SPUs along with 192 Texture Address Units and 64 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 870M		110 Watts
GeForce RTX 2080 SUPER		250 Watts
	Difference: 140 Watts (127%)

Memory Bandwidth

Performance-wise, the GeForce RTX 2080 SUPER should theoretically be quite a bit superior to the GeForce GTX 870M in general. (explain)

GeForce RTX 2080 SUPER		507904 MB/sec
GeForce GTX 870M		96000 MB/sec
	Difference: 411904 (429%)

Texel Rate

The GeForce RTX 2080 SUPER should be much (about 201%) faster with regards to AF than the GeForce GTX 870M. (explain)

GeForce RTX 2080 SUPER		316800 Mtexels/sec
GeForce GTX 870M		105392 Mtexels/sec
	Difference: 211408 (201%)

Pixel Rate

The GeForce RTX 2080 SUPER will be much (about 368%) more effective at full screen anti-aliasing than the GeForce GTX 870M, and able to handle higher screen resolutions while still performing well. (explain)

GeForce RTX 2080 SUPER		105600 Mpixels/sec
GeForce GTX 870M		22584 Mpixels/sec
	Difference: 83016 (368%)

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 (in units of MB per second) that can be moved across the external memory interface in one second. The number is worked out by multiplying the interface width by its memory clock speed. If it uses DDR type memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate 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 drawing the pixels (image) on the screen. The actual pixel fill rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.