GeForce 840M vs Radeon RX 5500 XT

Intro

Compare those specifications to the Radeon RX 5500 XT, which has GPU core speed of 1717 MHz, and 8192 MB of GDDR6 RAM running at 1750 MHz through a 128-bit bus. It also is comprised of 1408 SPUs, 88 TAUs, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 840M		30 Watts
Radeon RX 5500 XT		130 Watts
	Difference: 100 Watts (333%)

Memory Bandwidth

Performance-wise, the Radeon RX 5500 XT should theoretically be a lot superior to the GeForce 840M in general. (explain)

Radeon RX 5500 XT		229376 MB/sec
GeForce 840M		16000 MB/sec
	Difference: 213376 (1334%)

Texel Rate

The Radeon RX 5500 XT is much (more or less 512%) more effective at texture filtering than the GeForce 840M. (explain)

Radeon RX 5500 XT		151096 Mtexels/sec
GeForce 840M		24696 Mtexels/sec
	Difference: 126400 (512%)

Pixel Rate

The Radeon RX 5500 XT is quite a bit (more or less 567%) better at FSAA than the GeForce 840M, and capable of handling higher resolutions without losing too much performance. (explain)

Radeon RX 5500 XT		54944 Mpixels/sec
GeForce 840M		8232 Mpixels/sec
	Difference: 46712 (567%)

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 moved across the external memory interface in one second. It is calculated by multiplying the bus width by its memory speed. If it uses DDR type memory, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed per second. This number is calculated by multiplying the total amount of texture units by the core clock 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 processed in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly write to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Raster Operations Pipelines by the clock 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 fill rate is also dependant on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.