GeForce GT 640 DDR3 vs GeForce RTX 3050

Intro

Compare those specs to the GeForce RTX 3050, which makes use of a 8 nm design. nVidia has set the core speed at 1552 MHz. The GDDR6 RAM runs at a speed of 1750 MHz on this particular model. It features 2560 SPUs along with 80 Texture Address Units and 32 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 640 DDR3		65 Watts
GeForce RTX 3050		130 Watts
	Difference: 65 Watts (100%)

Memory Bandwidth

Theoretically, the GeForce RTX 3050 should be a lot faster than the GeForce GT 640 DDR3 in general. (explain)

GeForce RTX 3050		229376 MB/sec
GeForce GT 640 DDR3		57024 MB/sec
	Difference: 172352 (302%)

Texel Rate

The GeForce RTX 3050 should be a lot (about 331%) more effective at anisotropic filtering than the GeForce GT 640 DDR3. (explain)

GeForce RTX 3050		124160 Mtexels/sec
GeForce GT 640 DDR3		28800 Mtexels/sec
	Difference: 95360 (331%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce RTX 3050 is the winner, by far. (explain)

GeForce RTX 3050		49664 Mpixels/sec
GeForce GT 640 DDR3		14400 Mpixels/sec
	Difference: 35264 (245%)

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 max amount of information (measured in megabytes per second) that can be transported past the external memory interface in one second. It is calculated by multiplying the card's interface width by the speed of its memory. If it uses DDR type memory, the result 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 AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels the graphics card could 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 colour 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 output rate also depends on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.