Radeon HD 6450 (OEM) vs Radeon RX 7900 XT

Intro

Compare those specs to the Radeon RX 7900 XT, which uses a 5 nm design. AMD has clocked the core frequency at 1500 MHz. The GDDR6 RAM runs at a speed of 2500 MHz on this specific model. It features 5376 SPUs as well as 336 Texture Address Units and 192 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6450 (OEM)		31 Watts
Radeon RX 7900 XT		300 Watts
	Difference: 269 Watts (868%)

Memory Bandwidth

Theoretically speaking, the Radeon RX 7900 XT is 6300% faster than the Radeon HD 6450 (OEM) in general, due to its greater data rate. (explain)

Radeon RX 7900 XT		819200 MB/sec
Radeon HD 6450 (OEM)		12800 MB/sec
	Difference: 806400 (6300%)

Texel Rate

The Radeon RX 7900 XT will be a lot (more or less 9980%) better at texture filtering than the Radeon HD 6450 (OEM). (explain)

Radeon RX 7900 XT		504000 Mtexels/sec
Radeon HD 6450 (OEM)		5000 Mtexels/sec
	Difference: 499000 (9980%)

Pixel Rate

If running with high levels of AA is important to you, then the Radeon RX 7900 XT is superior to the Radeon HD 6450 (OEM), by far. (explain)

Radeon RX 7900 XT		288000 Mpixels/sec
Radeon HD 6450 (OEM)		2500 Mpixels/sec
	Difference: 285500 (11420%)

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 maximum amount of information (counted in megabytes per second) that can be moved across the external memory interface in a second. The number is calculated by multiplying the interface width by its memory speed. If the card has DDR memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed per second. This is calculated by multiplying the total texture units of the card by the core clock 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 applied in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of colour ROPs 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 many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.