GeForce GTX 1650 vs Radeon HD 4870 2GB

Intro

Compare all that to the Radeon HD 4870 2GB, which makes use of a 55 nm design. AMD has clocked the core speed at 750 MHz. The GDDR5 memory works at a frequency of 900 MHz on this model. It features 800(160x5) SPUs along with 40 TAUs and 16 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 1650		75 Watts
Radeon HD 4870 2GB		150 Watts
	Difference: 75 Watts (100%)

Memory Bandwidth

In theory, the GeForce GTX 1650 will be 14% faster than the Radeon HD 4870 2GB in general, due to its higher data rate. (explain)

GeForce GTX 1650		131072 MB/sec
Radeon HD 4870 2GB		115200 MB/sec
	Difference: 15872 (14%)

Texel Rate

The GeForce GTX 1650 will be quite a bit (approximately 177%) more effective at anisotropic filtering than the Radeon HD 4870 2GB. (explain)

GeForce GTX 1650		83160 Mtexels/sec
Radeon HD 4870 2GB		30000 Mtexels/sec
	Difference: 53160 (177%)

Pixel Rate

The GeForce GTX 1650 should be much (approximately 296%) more effective at full screen anti-aliasing than the Radeon HD 4870 2GB, and will be capable of handling higher screen resolutions while still performing well. (explain)

GeForce GTX 1650		47520 Mpixels/sec
Radeon HD 4870 2GB		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 max amount of information (counted in MB per second) that can be moved over the external memory interface in a second. It is worked out by multiplying the card's interface width by its memory clock speed. In the case of DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. 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 amount of texture map elements (texels) that can be processed per second. This number is calculated by multiplying the total texture units of the card by the core speed of the chip. The better this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly write to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount 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 fill rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.