Radeon HD 6450 (OEM) 1GB vs Radeon RX 470

Intro

Compare all of that to the Radeon RX 470, which comes with clock speeds of 926 MHz on the GPU, and 1650 MHz on the 8192 MB of GDDR5 memory. It features 2048 SPUs as well as 128 TAUs and 32 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6450 (OEM) 1GB		31 Watts
Radeon RX 470		120 Watts
	Difference: 89 Watts (287%)

Memory Bandwidth

Performance-wise, the Radeon RX 470 should in theory be a lot superior to the Radeon HD 6450 (OEM) 1GB overall. (explain)

Radeon RX 470		211200 MB/sec
Radeon HD 6450 (OEM) 1GB		28800 MB/sec
	Difference: 182400 (633%)

Texel Rate

The Radeon RX 470 will be much (approximately 1875%) better at texture filtering than the Radeon HD 6450 (OEM) 1GB. (explain)

Radeon RX 470		118528 Mtexels/sec
Radeon HD 6450 (OEM) 1GB		6000 Mtexels/sec
	Difference: 112528 (1875%)

Pixel Rate

The Radeon RX 470 will be a lot (about 888%) more effective at anti-aliasing than the Radeon HD 6450 (OEM) 1GB, and also capable of handling higher screen resolutions without slowing down too much. (explain)

Radeon RX 470		29632 Mpixels/sec
Radeon HD 6450 (OEM) 1GB		3000 Mpixels/sec
	Difference: 26632 (888%)

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 largest amount of information (counted in megabytes per second) that can be transported across the external memory interface in one second. It's worked out by multiplying the card's bus width by its memory clock speed. In the case of DDR type RAM, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly write to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on 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 bandwidth is, the lower the potential to reach the maximum fill rate.