GeForce GT 240 GDDR5 1GB vs GeForce RTX 2080

Intro

Compare all that to the GeForce RTX 2080, which has GPU clock speed of 1515 MHz, and 8192 MB of GDDR6 memory set to run at 1750 MHz through a 256-bit bus. It also is made up of 2944 SPUs, 184 Texture Address Units, and 64 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 240 GDDR5 1GB		70 Watts
GeForce RTX 2080		215 Watts
	Difference: 145 Watts (207%)

Memory Bandwidth

The GeForce RTX 2080 should in theory be much faster than the GeForce GT 240 GDDR5 1GB in general. (explain)

GeForce RTX 2080		458752 MB/sec
GeForce GT 240 GDDR5 1GB		54400 MB/sec
	Difference: 404352 (743%)

Texel Rate

The GeForce RTX 2080 will be much (about 1484%) better at AF than the GeForce GT 240 GDDR5 1GB. (explain)

GeForce RTX 2080		278760 Mtexels/sec
GeForce GT 240 GDDR5 1GB		17600 Mtexels/sec
	Difference: 261160 (1484%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce RTX 2080 is the winner, by a large margin. (explain)

GeForce RTX 2080		96960 Mpixels/sec
GeForce GT 240 GDDR5 1GB		4400 Mpixels/sec
	Difference: 92560 (2104%)

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 largest amount of data (measured in megabytes per second) that can be moved across the external memory interface in a second. It's calculated by multiplying the card's bus width by the speed of its memory. If it uses DDR memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can 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 Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.