Radeon HD 5450 vs Radeon RX 470

Intro

Compare all of that to the Radeon RX 470, which uses a 14 nm design. AMD has clocked the core speed at 926 MHz. The GDDR5 RAM is set to run at a frequency of 1650 MHz on this card. It features 2048 SPUs as well as 128 TAUs and 32 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

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

Memory Bandwidth

As far as performance goes, the Radeon RX 470 should theoretically be much better than the Radeon HD 5450 in general. (explain)

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

Texel Rate

The Radeon RX 470 will be quite a bit (about 2179%) more effective at anisotropic filtering than the Radeon HD 5450. (explain)

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

Pixel Rate

The Radeon RX 470 is a lot (about 1040%) better at FSAA than the Radeon HD 5450, and also will be capable of handling higher screen resolutions without slowing down too much. (explain)

Radeon RX 470		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: Memory bandwidth is the largest amount of information (measured in MB per second) that can be moved past 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 it uses DDR type memory, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better 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 number of texture map elements (texels) that can be applied per second. This number is worked out by multiplying the total texture units of the card by the core clock speed of the chip. The higher this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly record to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of Render Output Units by the the core speed of the card. 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 lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.