Radeon HD 6450 (OEM) vs Radeon RX 5500 XT

Intro

Compare those specs to the Radeon RX 5500 XT, which comes with clock speeds of 1717 MHz on the GPU, and 1750 MHz on the 8192 MB of GDDR6 memory. It features 1408 SPUs as well as 88 Texture Address Units and 32 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6450 (OEM)		31 Watts
Radeon RX 5500 XT		130 Watts
	Difference: 99 Watts (319%)

Memory Bandwidth

In theory, the Radeon RX 5500 XT is 1692% quicker than the Radeon HD 6450 (OEM) overall, because of its greater data rate. (explain)

Radeon RX 5500 XT		229376 MB/sec
Radeon HD 6450 (OEM)		12800 MB/sec
	Difference: 216576 (1692%)

Texel Rate

The Radeon RX 5500 XT is quite a bit (more or less 2922%) faster with regards to anisotropic filtering than the Radeon HD 6450 (OEM). (explain)

Radeon RX 5500 XT		151096 Mtexels/sec
Radeon HD 6450 (OEM)		5000 Mtexels/sec
	Difference: 146096 (2922%)

Pixel Rate

If using a high screen resolution is important to you, then the Radeon RX 5500 XT is superior to the Radeon HD 6450 (OEM), and very much so. (explain)

Radeon RX 5500 XT		54944 Mpixels/sec
Radeon HD 6450 (OEM)		2500 Mpixels/sec
	Difference: 52444 (2098%)

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 largest amount of information (in units of MB per second) that can be transported past the external memory interface in one second. It's calculated by multiplying the interface width by its memory clock speed. If the card has DDR RAM, it should be multiplied by 2 again. If it uses 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 higher screen 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 number of texture units of the card 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 one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.