Radeon HD 6450 (OEM) vs Radeon RX 6700 XT

Intro

Compare those specifications to the Radeon RX 6700 XT, which comes with a core clock speed of 2321 MHz and a GDDR6 memory speed of 2000 MHz. It also makes use of a 192-bit bus, and makes use of a 7 nm design. It is comprised of 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)		31 Watts
Radeon RX 6700 XT		230 Watts
	Difference: 199 Watts (642%)

Memory Bandwidth

Theoretically speaking, the Radeon RX 6700 XT should be 2972% faster than the Radeon HD 6450 (OEM) overall, due to its greater data rate. (explain)

Radeon RX 6700 XT		393216 MB/sec
Radeon HD 6450 (OEM)		12800 MB/sec
	Difference: 380416 (2972%)

Texel Rate

The Radeon RX 6700 XT will be a lot (about 7327%) faster with regards to texture filtering than the Radeon HD 6450 (OEM). (explain)

Radeon RX 6700 XT		371360 Mtexels/sec
Radeon HD 6450 (OEM)		5000 Mtexels/sec
	Difference: 366360 (7327%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon RX 6700 XT is the winner, by a large margin. (explain)

Radeon RX 6700 XT		148544 Mpixels/sec
Radeon HD 6450 (OEM)		2500 Mpixels/sec
	Difference: 146044 (5842%)

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 data (counted in megabytes per second) that can be transferred over the external memory interface in one second. The number is calculated by multiplying the interface width by its memory speed. If the card has DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed per second. This figure is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.