GeForce GT 420 vs GeForce GTX 1650

Intro

Compare those specs to the GeForce GTX 1650, which has GPU clock speed of 1485 MHz, and 4096 MB of GDDR5 RAM set to run at 2001 MHz through a 128-bit bus. It also is comprised of 896 Stream Processors, 56 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 1650		75 Watts
	Difference: 25 Watts (50%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 1650 should be 355% faster than the GeForce GT 420 in general, because of its higher data rate. (explain)

GeForce GTX 1650		131072 MB/sec
GeForce GT 420		28800 MB/sec
	Difference: 102272 (355%)

Texel Rate

The GeForce GTX 1650 is quite a bit (about 1385%) faster with regards to texture filtering than the GeForce GT 420. (explain)

GeForce GTX 1650		83160 Mtexels/sec
GeForce GT 420		5600 Mtexels/sec
	Difference: 77560 (1385%)

Pixel Rate

The GeForce GTX 1650 will be much (approximately 1597%) better at FSAA than the GeForce GT 420, and also should be able to handle higher resolutions better. (explain)

GeForce GTX 1650		47520 Mpixels/sec
GeForce GT 420		2800 Mpixels/sec
	Difference: 44720 (1597%)

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 maximum amount of information (counted in MB per second) that can be transferred over the external memory interface in one second. It's worked out by multiplying the card's bus width by the speed of its memory. If it uses DDR RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, 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 applied in one second. This is worked out by multiplying the total number of texture units of the card by the core clock speed of the chip. The higher this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly write to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.