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

Intro

Compare those specs to the Radeon RX 5700, which has a core clock speed of 1465 MHz and a GDDR6 memory speed of 1750 MHz. It also makes use of a 256-bit memory bus, and makes use of a 7 nm design. It is comprised of 2304 SPUs, 144 TAUs, 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		180 Watts
	Difference: 149 Watts (481%)

Memory Bandwidth

Theoretically, the Radeon RX 5700 should be much faster than the Radeon HD 6450 (OEM) 1GB in general. (explain)

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

Texel Rate

The Radeon RX 5700 is a lot (more or less 3416%) more effective at texture filtering than the Radeon HD 6450 (OEM) 1GB. (explain)

Radeon RX 5700		210960 Mtexels/sec
Radeon HD 6450 (OEM) 1GB		6000 Mtexels/sec
	Difference: 204960 (3416%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Radeon RX 5700 is a better choice, by a large margin. (explain)

Radeon RX 5700		93760 Mpixels/sec
Radeon HD 6450 (OEM) 1GB		3000 Mpixels/sec
	Difference: 90760 (3025%)

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 max amount of data (in units of megabytes per second) that can be transferred across the external memory interface within a second. It is calculated by multiplying the card's interface width by its memory clock speed. If the card has DDR type memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied per second. This figure is worked out by multiplying the total amount of texture units by the core speed of the chip. The better the texel rate, the better the card will be at handling 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 could possibly write to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Raster Operations Pipelines 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 output rate is also dependant on lots of 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.