Radeon HD 6450 (OEM) 1GB vs Radeon RX 560

Intro

Compare that to the Radeon RX 560, which features GPU core speed of 1175 MHz, and 4096 MB of GDDR5 memory set to run at 1750 MHz through a 128-bit bus. It also is comprised of 1024 SPUs, 64 TAUs, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6450 (OEM) 1GB		31 Watts
Radeon RX 560		80 Watts
	Difference: 49 Watts (158%)

Memory Bandwidth

Theoretically speaking, the Radeon RX 560 should be quite a bit faster than the Radeon HD 6450 (OEM) 1GB in general. (explain)

Radeon RX 560		114688 MB/sec
Radeon HD 6450 (OEM) 1GB		28800 MB/sec
	Difference: 85888 (298%)

Texel Rate

The Radeon RX 560 is quite a bit (about 1153%) more effective at texture filtering than the Radeon HD 6450 (OEM) 1GB. (explain)

Radeon RX 560		75200 Mtexels/sec
Radeon HD 6450 (OEM) 1GB		6000 Mtexels/sec
	Difference: 69200 (1153%)

Pixel Rate

If using a high screen resolution is important to you, then the Radeon RX 560 is superior to the Radeon HD 6450 (OEM) 1GB, by a large margin. (explain)

Radeon RX 560		18800 Mpixels/sec
Radeon HD 6450 (OEM) 1GB		3000 Mpixels/sec
	Difference: 15800 (527%)

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 (counted in megabytes per second) that can be transported past the external memory interface in a second. It's worked out by multiplying the card's interface width by its memory speed. In the case of DDR memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, 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 texture map elements (texels) that can be processed in one second. This is worked out 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 texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.