Radeon HD 6750 1GB vs Radeon RX 470

Intro

Compare all that to the Radeon RX 470, which has core clock speeds of 926 MHz on the GPU, and 1650 MHz on the 8192 MB of GDDR5 RAM. It features 2048 SPUs along with 128 Texture Address Units and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6750 1GB		86 Watts
Radeon RX 470		120 Watts
	Difference: 34 Watts (40%)

Memory Bandwidth

In theory, the Radeon RX 470 is 230% quicker than the Radeon HD 6750 1GB overall, because of its greater data rate. (explain)

Radeon RX 470		211200 MB/sec
Radeon HD 6750 1GB		64000 MB/sec
	Difference: 147200 (230%)

Texel Rate

The Radeon RX 470 should be much (more or less 354%) better at AF than the Radeon HD 6750 1GB. (explain)

Radeon RX 470		118528 Mtexels/sec
Radeon HD 6750 1GB		26100 Mtexels/sec
	Difference: 92428 (354%)

Pixel Rate

The Radeon RX 470 will be much (about 155%) better at FSAA than the Radeon HD 6750 1GB, and should be capable of handling higher resolutions while still performing well. (explain)

Radeon RX 470		29632 Mpixels/sec
Radeon HD 6750 1GB		11600 Mpixels/sec
	Difference: 18032 (155%)

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: Memory bandwidth is the maximum amount of data (measured in megabytes per second) that can be moved past the external memory interface in one second. It is worked out by multiplying the interface width by its memory clock speed. If the card has DDR RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed per second. This figure is calculated by multiplying the total amount of texture units of the card by the core clock 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 processed per second.

Pixel Rate: Pixel rate is the most pixels the video card can possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.