GeForce GTX 1650 vs Radeon HD 4870 1GB

Intro

Compare all of that to the Radeon HD 4870 1GB, which features a clock speed of 750 MHz and a GDDR5 memory speed of 900 MHz. It also features a 256-bit bus, and makes use of a 55 nm design. It features 800(160x5) SPUs, 40 Texture Address Units, and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 1650		75 Watts
Radeon HD 4870 1GB		150 Watts
	Difference: 75 Watts (100%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 1650 should be 14% faster than the Radeon HD 4870 1GB in general, because of its higher bandwidth. (explain)

GeForce GTX 1650		131072 MB/sec
Radeon HD 4870 1GB		115200 MB/sec
	Difference: 15872 (14%)

Texel Rate

The GeForce GTX 1650 is much (approximately 177%) more effective at texture filtering than the Radeon HD 4870 1GB. (explain)

GeForce GTX 1650		83160 Mtexels/sec
Radeon HD 4870 1GB		30000 Mtexels/sec
	Difference: 53160 (177%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GTX 1650 is the winner, and very much so. (explain)

GeForce GTX 1650		47520 Mpixels/sec
Radeon HD 4870 1GB		12000 Mpixels/sec
	Difference: 35520 (296%)

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 data (in units of megabytes per second) that can be transferred across the external memory interface within a second. The number is calculated by multiplying the interface width by its memory clock speed. In the case of DDR memory, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied in one second. This is worked out 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 graphics card will be at handling 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 can possibly record to its local memory per 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 drawing the pixels (image) on the screen. The actual pixel rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.