Radeon HD 6450 (OEM) vs Radeon RX 480 4GB

Intro

Compare all of that to the Radeon RX 480 4GB, which comes with a core clock frequency of 1120 MHz and a GDDR5 memory speed of 1750 MHz. It also uses a 256-bit bus, and makes use of a 14 nm design. It features 2304 SPUs, 144 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6450 (OEM)		31 Watts
Radeon RX 480 4GB		150 Watts
	Difference: 119 Watts (384%)

Memory Bandwidth

Theoretically speaking, the Radeon RX 480 4GB should be 1692% quicker than the Radeon HD 6450 (OEM) in general, because of its higher bandwidth. (explain)

Radeon RX 480 4GB		229376 MB/sec
Radeon HD 6450 (OEM)		12800 MB/sec
	Difference: 216576 (1692%)

Texel Rate

The Radeon RX 480 4GB is a lot (approximately 3126%) more effective at texture filtering than the Radeon HD 6450 (OEM). (explain)

Radeon RX 480 4GB		161280 Mtexels/sec
Radeon HD 6450 (OEM)		5000 Mtexels/sec
	Difference: 156280 (3126%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Radeon RX 480 4GB is superior to the Radeon HD 6450 (OEM), by far. (explain)

Radeon RX 480 4GB		35840 Mpixels/sec
Radeon HD 6450 (OEM)		2500 Mpixels/sec
	Difference: 33340 (1334%)

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 largest amount of information (counted in MB per second) that can be transported across the external memory interface in a second. It's calculated by multiplying the interface width by its memory clock speed. In the case of DDR memory, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied per second. This number is calculated by multiplying the total amount of texture units by the core speed of the chip. The higher the texel rate, the better the 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 most pixels the graphics card could possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.