GeForce RTX 3080 vs Radeon HD 5450

Intro

Compare all of that to the Radeon HD 5450, which comes with GPU core speed of 650 MHz, and 512 MB of DDR3 RAM set to run at 800 MHz through a 64-bit bus. It also is comprised of 80(16x5) Stream Processors, 8 Texture Address Units, and 4 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5450		19 Watts
GeForce RTX 3080		320 Watts
	Difference: 301 Watts (1584%)

Memory Bandwidth

Performance-wise, the GeForce RTX 3080 should theoretically be a lot superior to the Radeon HD 5450 in general. (explain)

GeForce RTX 3080		778547 MB/sec
Radeon HD 5450		12800 MB/sec
	Difference: 765747 (5982%)

Texel Rate

The GeForce RTX 3080 will be much (about 7432%) better at anisotropic filtering than the Radeon HD 5450. (explain)

GeForce RTX 3080		391680 Mtexels/sec
Radeon HD 5450		5200 Mtexels/sec
	Difference: 386480 (7432%)

Pixel Rate

The GeForce RTX 3080 should be quite a bit (approximately 5217%) better at FSAA than the Radeon HD 5450, and will be capable of handling higher resolutions without losing too much performance. (explain)

GeForce RTX 3080		138240 Mpixels/sec
Radeon HD 5450		2600 Mpixels/sec
	Difference: 135640 (5217%)

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 MB per second) that can be transferred across the external memory interface in one second. The number is worked out by multiplying the card's interface width by the speed of its memory. If the card has DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly record to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel 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.