GeForce GTX 1650 vs Radeon HD 4890 1GB

Intro

Compare all of that to the Radeon HD 4890 1GB, which features a clock frequency of 1000 MHz and a GDDR5 memory speed of 975 MHz. It also features a 256-bit memory bus, and makes use of a 55 nm design. It features 800(160x5) SPUs, 40 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 1650		75 Watts
Radeon HD 4890 1GB		190 Watts
	Difference: 115 Watts (153%)

Memory Bandwidth

In theory, the GeForce GTX 1650 should perform a small bit faster than the Radeon HD 4890 1GB in general. (explain)

GeForce GTX 1650		131072 MB/sec
Radeon HD 4890 1GB		124800 MB/sec
	Difference: 6272 (5%)

Texel Rate

The GeForce GTX 1650 is much (approximately 108%) more effective at anisotropic filtering than the Radeon HD 4890 1GB. (explain)

GeForce GTX 1650		83160 Mtexels/sec
Radeon HD 4890 1GB		40000 Mtexels/sec
	Difference: 43160 (108%)

Pixel Rate

The GeForce GTX 1650 should be much (approximately 197%) faster with regards to AA than the Radeon HD 4890 1GB, and should be able to handle higher resolutions more effectively. (explain)

GeForce GTX 1650		47520 Mpixels/sec
Radeon HD 4890 1GB		16000 Mpixels/sec
	Difference: 31520 (197%)

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 MB per second) that can be moved over the external memory interface in a second. It's calculated by multiplying the interface width by its memory speed. If it uses DDR type RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied per second. This is calculated by multiplying the total number of texture units of the card by the core clock speed of the chip. The better the texel rate, 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 most pixels that the graphics chip can possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate 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 of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.