GeForce GTX 1650 vs Radeon HD 4890 2GB

Intro

Compare all of that to the Radeon HD 4890 2GB, which uses a 55 nm design. AMD has set the core speed at 1000 MHz. The GDDR5 RAM is set to run at a frequency of 975 MHz on this specific model. It features 800(160x5) SPUs as well as 40 TAUs and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 1650		75 Watts
Radeon HD 4890 2GB		190 Watts
	Difference: 115 Watts (153%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 1650 will be 5% quicker than the Radeon HD 4890 2GB in general, due to its higher data rate. (explain)

GeForce GTX 1650		131072 MB/sec
Radeon HD 4890 2GB		124800 MB/sec
	Difference: 6272 (5%)

Texel Rate

The GeForce GTX 1650 should be much (approximately 108%) more effective at AF than the Radeon HD 4890 2GB. (explain)

GeForce GTX 1650		83160 Mtexels/sec
Radeon HD 4890 2GB		40000 Mtexels/sec
	Difference: 43160 (108%)

Pixel Rate

If using a high resolution is important to you, then the GeForce GTX 1650 is a better choice, by a large margin. (explain)

GeForce GTX 1650		47520 Mpixels/sec
Radeon HD 4890 2GB		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: Memory bandwidth is the largest amount of information (counted in megabytes per second) that can be moved across the external memory interface within a second. It's calculated by multiplying the interface width by its memory speed. If the card has DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly write to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.