Radeon HD 6750 1GB vs Radeon RX 580

Intro

Compare those specifications to the Radeon RX 580, which features a core clock speed of 1257 MHz and a GDDR5 memory frequency of 2000 MHz. It also features a 256-bit bus, and uses a 14 nm design. It is comprised of 2304 SPUs, 144 Texture Address Units, and 32 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6750 1GB		86 Watts
Radeon RX 580		185 Watts
	Difference: 99 Watts (115%)

Memory Bandwidth

Theoretically speaking, the Radeon RX 580 will be 310% quicker than the Radeon HD 6750 1GB overall, because of its greater bandwidth. (explain)

Radeon RX 580		262144 MB/sec
Radeon HD 6750 1GB		64000 MB/sec
	Difference: 198144 (310%)

Texel Rate

The Radeon RX 580 will be much (more or less 594%) better at texture filtering than the Radeon HD 6750 1GB. (explain)

Radeon RX 580		181008 Mtexels/sec
Radeon HD 6750 1GB		26100 Mtexels/sec
	Difference: 154908 (594%)

Pixel Rate

The Radeon RX 580 will be quite a bit (more or less 247%) more effective at full screen anti-aliasing than the Radeon HD 6750 1GB, and also will be able to handle higher screen resolutions better. (explain)

Radeon RX 580		40224 Mpixels/sec
Radeon HD 6750 1GB		11600 Mpixels/sec
	Difference: 28624 (247%)

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 maximum amount of information (counted in MB per second) that can be transported across the external memory interface in one second. It is worked out by multiplying the card's bus width by its memory speed. If it uses DDR RAM, the result should be multiplied by 2 once 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 AA, High Dynamic Range and high resolutions.

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

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