GeForce GTX 1650 vs Radeon HD 4870 X2

Intro

Compare those specifications to the Radeon HD 4870 X2, which features core clock speeds of 750 MHz on the GPU, and 900 MHz on the 1024 MB of GDDR5 memory. It features 800(160x5) SPUs along with 40 Texture Address Units and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 1650		75 Watts
Radeon HD 4870 X2		350 Watts
	Difference: 275 Watts (367%)

Memory Bandwidth

The Radeon HD 4870 X2 should in theory be much faster than the GeForce GTX 1650 overall. (explain)

Radeon HD 4870 X2		230400 MB/sec
GeForce GTX 1650		131072 MB/sec
	Difference: 99328 (76%)

Texel Rate

The GeForce GTX 1650 is much (more or less 39%) better at AF than the Radeon HD 4870 X2. (explain)

GeForce GTX 1650		83160 Mtexels/sec
Radeon HD 4870 X2		60000 Mtexels/sec
	Difference: 23160 (39%)

Pixel Rate

The GeForce GTX 1650 should be a lot (about 98%) faster with regards to full screen anti-aliasing than the Radeon HD 4870 X2, and will be able to handle higher screen resolutions without slowing down too much. (explain)

GeForce GTX 1650		47520 Mpixels/sec
Radeon HD 4870 X2		24000 Mpixels/sec
	Difference: 23520 (98%)

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.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

Specifications

Memory Bandwidth: Bandwidth is the maximum amount of information (in units of MB per second) that can be transferred over the external memory interface in a second. It's calculated by multiplying the interface width by its memory speed. If it uses DDR memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the 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 amount of texture map elements (texels) that can be applied per second. This is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The better the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. 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 ability to reach the maximum fill rate.