GeForce GTS 150 vs GeForce RTX 2080 Ti

Intro

Compare those specifications to the GeForce RTX 2080 Ti, which features GPU clock speed of 1350 MHz, and 11264 MB of GDDR6 RAM running at 1750 MHz through a 352-bit bus. It also is made up of 4352 SPUs, 272 TAUs, and 88 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTS 150		141 Watts
GeForce RTX 2080 Ti		250 Watts
	Difference: 109 Watts (77%)

Memory Bandwidth

Theoretically speaking, the GeForce RTX 2080 Ti should perform a lot faster than the GeForce GTS 150 overall. (explain)

GeForce RTX 2080 Ti		630784 MB/sec
GeForce GTS 150		32000 MB/sec
	Difference: 598784 (1871%)

Texel Rate

The GeForce RTX 2080 Ti is much (approximately 675%) faster with regards to anisotropic filtering than the GeForce GTS 150. (explain)

GeForce RTX 2080 Ti		367200 Mtexels/sec
GeForce GTS 150		47360 Mtexels/sec
	Difference: 319840 (675%)

Pixel Rate

The GeForce RTX 2080 Ti is quite a bit (about 903%) better at anti-aliasing than the GeForce GTS 150, and also should be able to handle higher screen resolutions better. (explain)

GeForce RTX 2080 Ti		118800 Mpixels/sec
GeForce GTS 150		11840 Mpixels/sec
	Difference: 106960 (903%)

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 largest amount of data (counted in MB per second) that can be transferred over the external memory interface within a second. The number is calculated by multiplying the card's bus width by its memory speed. If the card has DDR RAM, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed in one second. This is calculated 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 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 that the graphics chip could possibly write to the local memory per second - measured in millions of pixels per second. The figure 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 filling the screen with pixels (the image). The actual pixel rate also depends on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.