Radeon HD 5450 vs Radeon RX 470 4GB

Intro

Compare all that to the Radeon RX 470 4GB, which features a clock frequency of 926 MHz and a GDDR5 memory frequency of 1650 MHz. It also uses a 256-bit memory bus, and makes use of a 14 nm design. It is comprised of 2048 SPUs, 128 TAUs, and 32 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5450		19 Watts
Radeon RX 470 4GB		120 Watts
	Difference: 101 Watts (532%)

Memory Bandwidth

Theoretically, the Radeon RX 470 4GB should be quite a bit faster than the Radeon HD 5450 in general. (explain)

Radeon RX 470 4GB		211200 MB/sec
Radeon HD 5450		12800 MB/sec
	Difference: 198400 (1550%)

Texel Rate

The Radeon RX 470 4GB will be much (more or less 2179%) more effective at texture filtering than the Radeon HD 5450. (explain)

Radeon RX 470 4GB		118528 Mtexels/sec
Radeon HD 5450		5200 Mtexels/sec
	Difference: 113328 (2179%)

Pixel Rate

The Radeon RX 470 4GB will be quite a bit (about 1040%) more effective at anti-aliasing than the Radeon HD 5450, and also should be capable of handling higher screen resolutions without losing too much performance. (explain)

Radeon RX 470 4GB		29632 Mpixels/sec
Radeon HD 5450		2600 Mpixels/sec
	Difference: 27032 (1040%)

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 max amount of information (measured in MB per second) that can be transported over the external memory interface within a second. It's worked out by multiplying the bus width by the speed of its memory. If the card has DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR 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 texture units of the card by the core 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 processed per second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly record to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs 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 output rate also depends on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.