Radeon HD 6450 (OEM) 1GB vs Radeon RX 5700 XT

Intro

Compare all of that to the Radeon RX 5700 XT, which has GPU core speed of 1605 MHz, and 8096 MB of GDDR6 memory set to run at 1750 MHz through a 256-bit bus. It also features 2560 SPUs, 160 Texture Address Units, and 64 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6450 (OEM) 1GB		31 Watts
Radeon RX 5700 XT		225 Watts
	Difference: 194 Watts (626%)

Memory Bandwidth

In theory, the Radeon RX 5700 XT will be 1493% faster than the Radeon HD 6450 (OEM) 1GB overall, due to its greater data rate. (explain)

Radeon RX 5700 XT		458752 MB/sec
Radeon HD 6450 (OEM) 1GB		28800 MB/sec
	Difference: 429952 (1493%)

Texel Rate

The Radeon RX 5700 XT should be a lot (more or less 4180%) faster with regards to texture filtering than the Radeon HD 6450 (OEM) 1GB. (explain)

Radeon RX 5700 XT		256800 Mtexels/sec
Radeon HD 6450 (OEM) 1GB		6000 Mtexels/sec
	Difference: 250800 (4180%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Radeon RX 5700 XT is the winner, by a large margin. (explain)

Radeon RX 5700 XT		102720 Mpixels/sec
Radeon HD 6450 (OEM) 1GB		3000 Mpixels/sec
	Difference: 99720 (3324%)

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 largest amount of data (measured in megabytes per second) that can be transported across the external memory interface in a second. The number is calculated by multiplying the bus width by its memory speed. In the case of DDR memory, it should 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 anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed in one second. This is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The higher this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly record to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.