Radeon HD 6450 (OEM) vs Radeon RX 460 2GB

Intro

Compare those specs to the Radeon RX 460 2GB, which has a core clock speed of 1090 MHz and a GDDR5 memory frequency of 1750 MHz. It also features a 128-bit memory bus, and uses a 14 nm design. It is made up of 896 SPUs, 56 Texture Address Units, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6450 (OEM)		31 Watts
Radeon RX 460 2GB		75 Watts
	Difference: 44 Watts (142%)

Memory Bandwidth

In theory, the Radeon RX 460 2GB will be 775% quicker than the Radeon HD 6450 (OEM) overall, because of its higher bandwidth. (explain)

Radeon RX 460 2GB		112000 MB/sec
Radeon HD 6450 (OEM)		12800 MB/sec
	Difference: 99200 (775%)

Texel Rate

The Radeon RX 460 2GB will be quite a bit (more or less 1121%) more effective at anisotropic filtering than the Radeon HD 6450 (OEM). (explain)

Radeon RX 460 2GB		61040 Mtexels/sec
Radeon HD 6450 (OEM)		5000 Mtexels/sec
	Difference: 56040 (1121%)

Pixel Rate

The Radeon RX 460 2GB should be quite a bit (more or less 598%) faster with regards to FSAA than the Radeon HD 6450 (OEM), and also capable of handling higher resolutions better. (explain)

Radeon RX 460 2GB		17440 Mpixels/sec
Radeon HD 6450 (OEM)		2500 Mpixels/sec
	Difference: 14940 (598%)

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 data (in units of MB per second) that can be transported over the external memory interface in a second. It's calculated by multiplying the card's interface width by its memory speed. If the card has DDR memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed per second. This is worked out by multiplying the total texture units by the core clock 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 processed in one second.

Pixel Rate: Pixel rate is the most pixels the video card can possibly record to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.