Radeon HD 6450 (OEM) vs Radeon RX 570

Intro

Compare that to the Radeon RX 570, which has a core clock speed of 1168 MHz and a GDDR5 memory frequency of 1750 MHz. It also uses a 256-bit bus, and uses a 14 nm design. It is made up 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 570		12108 points
Radeon HD 6450 (OEM)		340 points
	Difference: 11768 (3461%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6450 (OEM)		31 Watts
Radeon RX 570		150 Watts
	Difference: 119 Watts (384%)

Memory Bandwidth

Performance-wise, the Radeon RX 570 should theoretically be quite a bit superior to the Radeon HD 6450 (OEM) overall. (explain)

Radeon RX 570		229376 MB/sec
Radeon HD 6450 (OEM)		12800 MB/sec
	Difference: 216576 (1692%)

Texel Rate

The Radeon RX 570 should be much (approximately 2890%) faster with regards to texture filtering than the Radeon HD 6450 (OEM). (explain)

Radeon RX 570		149504 Mtexels/sec
Radeon HD 6450 (OEM)		5000 Mtexels/sec
	Difference: 144504 (2890%)

Pixel Rate

The Radeon RX 570 is much (approximately 1395%) faster with regards to anti-aliasing than the Radeon HD 6450 (OEM), and also will be capable of handling higher resolutions without slowing down too much. (explain)

Radeon RX 570		37376 Mpixels/sec
Radeon HD 6450 (OEM)		2500 Mpixels/sec
	Difference: 34876 (1395%)

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 (in units of megabytes per second) that can be transported past the external memory interface in one second. It's calculated by multiplying the interface width by the speed of its memory. In the case of DDR type RAM, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the card's 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 amount of texture map elements (texels) that can be applied in one second. This is calculated by multiplying the total number of texture units by the core speed of the chip. The better this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a 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 calculated by multiplying the number of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.