GeForce GT 420 vs GeForce GTX 1050 Ti

Intro

Compare that to the GeForce GTX 1050 Ti, which comes with a core clock frequency of 1290 MHz and a GDDR5 memory frequency of 1750 MHz. It also uses a 128-bit memory bus, and uses a 14 nm design. It features 768 SPUs, 48 TAUs, and 32 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 420		50 Watts
GeForce GTX 1050 Ti		75 Watts
	Difference: 25 Watts (50%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 1050 Ti will be 298% quicker than the GeForce GT 420 overall, due to its higher data rate. (explain)

GeForce GTX 1050 Ti		114688 MB/sec
GeForce GT 420		28800 MB/sec
	Difference: 85888 (298%)

Texel Rate

The GeForce GTX 1050 Ti is a lot (approximately 1006%) better at texture filtering than the GeForce GT 420. (explain)

GeForce GTX 1050 Ti		61920 Mtexels/sec
GeForce GT 420		5600 Mtexels/sec
	Difference: 56320 (1006%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GTX 1050 Ti is a better choice, by a large margin. (explain)

GeForce GTX 1050 Ti		41280 Mpixels/sec
GeForce GT 420		2800 Mpixels/sec
	Difference: 38480 (1374%)

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 max amount of information (measured in megabytes per second) that can be transported over the external memory interface in one second. It's worked out by multiplying the interface width by the speed of its memory. If the card has DDR type RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better 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 texture map elements (texels) that can be processed per second. This is worked out by multiplying the total texture units by the core speed of the chip. The higher the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly write to the local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.