Radeon HD 6450 (OEM) vs Radeon RX 570

Intro

Compare those specifications to the Radeon RX 570, which has GPU core speed of 1168 MHz, and 4096 MB of GDDR5 memory set to run at 1750 MHz through a 256-bit bus. It also is comprised of 2048 Stream Processors, 128 TAUs, 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

In theory, the Radeon RX 570 will be 1692% faster than the Radeon HD 6450 (OEM) overall, because of its greater bandwidth. (explain)

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

Texel Rate

The Radeon RX 570 is much (about 2890%) better at anisotropic 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 should be quite a bit (about 1395%) faster with regards to AA than the Radeon HD 6450 (OEM), and should be capable of handling higher screen resolutions without losing too much performance. (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 (measured in megabytes per second) that can be transported past the external memory interface in one second. It's calculated by multiplying the card's interface width by the speed of its memory. If the card has DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed in one second. This figure is calculated by multiplying the total amount of texture units by the core clock speed of the chip. The higher the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly record to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.