GeForce GTX 1650 vs Radeon HD 3870 1GB

Intro

Compare those specifications to the Radeon HD 3870 1GB, which has a core clock speed of 775 MHz and a GDDR4 memory speed of 1125 MHz. It also makes use of a 256-bit bus, and makes use of a 55 nm design. It is comprised of 320(64x5) SPUs, 16 TAUs, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 1650		75 Watts
Radeon HD 3870 1GB		106 Watts
	Difference: 31 Watts (41%)

Memory Bandwidth

In theory, the GeForce GTX 1650 should be a lot faster than the Radeon HD 3870 1GB overall. (explain)

GeForce GTX 1650		131072 MB/sec
Radeon HD 3870 1GB		72000 MB/sec
	Difference: 59072 (82%)

Texel Rate

The GeForce GTX 1650 should be quite a bit (more or less 571%) faster with regards to texture filtering than the Radeon HD 3870 1GB. (explain)

GeForce GTX 1650		83160 Mtexels/sec
Radeon HD 3870 1GB		12400 Mtexels/sec
	Difference: 70760 (571%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GTX 1650 is superior to the Radeon HD 3870 1GB, by a large margin. (explain)

GeForce GTX 1650		47520 Mpixels/sec
Radeon HD 3870 1GB		12400 Mpixels/sec
	Difference: 35120 (283%)

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 (counted in MB per second) that can be transferred over the external memory interface in one second. The number is worked out by multiplying the card's interface width by its memory speed. If the card has DDR type RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed per second. This number is calculated by multiplying the total texture units 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 applied in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.