GeForce RTX 3080 12 GB vs Radeon HD 5450

Intro

Compare all of that to the Radeon HD 5450, which comes with GPU clock speed of 650 MHz, and 512 MB of DDR3 memory running at 800 MHz through a 64-bit bus. It also features 80(16x5) Stream Processors, 8 TAUs, and 4 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5450		19 Watts
GeForce RTX 3080 12 GB		350 Watts
	Difference: 331 Watts (1742%)

Memory Bandwidth

Theoretically speaking, the GeForce RTX 3080 12 GB should be quite a bit faster than the Radeon HD 5450 in general. (explain)

GeForce RTX 3080 12 GB		934298 MB/sec
Radeon HD 5450		12800 MB/sec
	Difference: 921498 (7199%)

Texel Rate

The GeForce RTX 3080 12 GB should be quite a bit (about 6685%) more effective at AF than the Radeon HD 5450. (explain)

GeForce RTX 3080 12 GB		352800 Mtexels/sec
Radeon HD 5450		5200 Mtexels/sec
	Difference: 347600 (6685%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce RTX 3080 12 GB is the winner, by far. (explain)

GeForce RTX 3080 12 GB		141120 Mpixels/sec
Radeon HD 5450		2600 Mpixels/sec
	Difference: 138520 (5328%)

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 (measured in megabytes per second) that can be transported past the external memory interface in a second. It's calculated by multiplying the card's interface width by its memory clock speed. If the card has DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better 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 number of texture map elements (texels) that are processed per second. This number is calculated by multiplying the total number of texture units by the core clock speed of the chip. The higher this number, 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 maximum amount of pixels the video card could possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.