GeForce GT 240 GDDR5 1GB vs GeForce RTX 3080 12 GB

Intro

Compare those specifications to the GeForce RTX 3080 12 GB, which comes with GPU clock speed of 1260 MHz, and 12288 MB of GDDR6X RAM set to run at 1188 MHz through a 384-bit bus. It also is comprised of 8960 Stream Processors, 280 TAUs, and 112 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 240 GDDR5 1GB		70 Watts
GeForce RTX 3080 12 GB		350 Watts
	Difference: 280 Watts (400%)

Memory Bandwidth

The GeForce RTX 3080 12 GB should in theory be much faster than the GeForce GT 240 GDDR5 1GB overall. (explain)

GeForce RTX 3080 12 GB		934298 MB/sec
GeForce GT 240 GDDR5 1GB		54400 MB/sec
	Difference: 879898 (1617%)

Texel Rate

The GeForce RTX 3080 12 GB is much (more or less 1905%) better at AF than the GeForce GT 240 GDDR5 1GB. (explain)

GeForce RTX 3080 12 GB		352800 Mtexels/sec
GeForce GT 240 GDDR5 1GB		17600 Mtexels/sec
	Difference: 335200 (1905%)

Pixel Rate

The GeForce RTX 3080 12 GB is much (about 3107%) more effective at full screen anti-aliasing than the GeForce GT 240 GDDR5 1GB, and also will be able to handle higher screen resolutions without slowing down too much. (explain)

GeForce RTX 3080 12 GB		141120 Mpixels/sec
GeForce GT 240 GDDR5 1GB		4400 Mpixels/sec
	Difference: 136720 (3107%)

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 information (in units of MB per second) that can be transferred over the external memory interface in one second. It is worked out by multiplying the interface width by its memory clock speed. In the case of DDR memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better 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 are processed per second. This number is calculated by multiplying the total amount of texture units 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 in a second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly write to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of ROPs by the the core 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 fill rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.