Radeon HD 6450 (OEM) vs Radeon RX 470

Intro

Compare all of that to the Radeon RX 470, which has a clock speed of 926 MHz and a GDDR5 memory speed of 1650 MHz. It also makes use of a 256-bit memory bus, and uses a 14 nm design. It is comprised of 2048 SPUs, 128 Texture Address Units, and 32 ROPs.

Display Graphs

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

Radeon RX 470		11756 points
Radeon HD 6450 (OEM)		340 points
	Difference: 11416 (3358%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

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

Memory Bandwidth

Theoretically, the Radeon RX 470 should be much faster than the Radeon HD 6450 (OEM) overall. (explain)

Radeon RX 470		211200 MB/sec
Radeon HD 6450 (OEM)		12800 MB/sec
	Difference: 198400 (1550%)

Texel Rate

The Radeon RX 470 will be a lot (about 2271%) better at texture filtering than the Radeon HD 6450 (OEM). (explain)

Radeon RX 470		118528 Mtexels/sec
Radeon HD 6450 (OEM)		5000 Mtexels/sec
	Difference: 113528 (2271%)

Pixel Rate

The Radeon RX 470 will be a lot (more or less 1085%) better at AA than the Radeon HD 6450 (OEM), and will be able to handle higher resolutions without slowing down too much. (explain)

Radeon RX 470		29632 Mpixels/sec
Radeon HD 6450 (OEM)		2500 Mpixels/sec
	Difference: 27132 (1085%)

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 maximum amount of information (measured in megabytes per second) that can be moved over the external memory interface in one second. The number is worked out by multiplying the card's bus width by its memory speed. In the case of DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, 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 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 better the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly record to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the amount of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.