Radeon HD 6450 (OEM) vs Radeon RX 5700 XT

Intro

Compare those specifications to the Radeon RX 5700 XT, which makes use of a 7 nm design. AMD has set the core speed at 1605 MHz. The GDDR6 memory works at a speed of 1750 MHz on this particular card. It features 2560 SPUs along with 160 Texture Address Units and 64 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 5700 XT		225 Watts
	Difference: 194 Watts (626%)

Memory Bandwidth

Theoretically speaking, the Radeon RX 5700 XT should be 3484% faster than the Radeon HD 6450 (OEM) overall, due to its higher bandwidth. (explain)

Radeon RX 5700 XT		458752 MB/sec
Radeon HD 6450 (OEM)		12800 MB/sec
	Difference: 445952 (3484%)

Texel Rate

The Radeon RX 5700 XT will be a lot (approximately 5036%) faster with regards to AF than the Radeon HD 6450 (OEM). (explain)

Radeon RX 5700 XT		256800 Mtexels/sec
Radeon HD 6450 (OEM)		5000 Mtexels/sec
	Difference: 251800 (5036%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon RX 5700 XT is a better choice, by far. (explain)

Radeon RX 5700 XT		102720 Mpixels/sec
Radeon HD 6450 (OEM)		2500 Mpixels/sec
	Difference: 100220 (4009%)

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: Bandwidth is the max amount of information (measured in MB per second) that can be moved past the external memory interface within a second. It's calculated by multiplying the card's interface width by its memory speed. If the card has DDR memory, 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, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed per second. This figure is worked out by multiplying the total amount of texture units of the card by the core 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 in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.