Radeon HD 6770 1GB vs Radeon RX 470

Intro

Compare those specs to the Radeon RX 470, which features core 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

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6770 1GB		108 Watts
Radeon RX 470		120 Watts
	Difference: 12 Watts (11%)

Memory Bandwidth

As far as performance goes, the Radeon RX 470 should theoretically be quite a bit better than the Radeon HD 6770 1GB in general. (explain)

Radeon RX 470		211200 MB/sec
Radeon HD 6770 1GB		67200 MB/sec
	Difference: 144000 (214%)

Texel Rate

The Radeon RX 470 should be a lot (more or less 229%) more effective at anisotropic filtering than the Radeon HD 6770 1GB. (explain)

Radeon RX 470		118528 Mtexels/sec
Radeon HD 6770 1GB		36000 Mtexels/sec
	Difference: 82528 (229%)

Pixel Rate

If using a high screen resolution is important to you, then the Radeon RX 470 is superior to the Radeon HD 6770 1GB, by far. (explain)

Radeon RX 470		29632 Mpixels/sec
Radeon HD 6770 1GB		14400 Mpixels/sec
	Difference: 15232 (106%)

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 max amount of information (in units of MB per second) that can be transferred past the external memory interface in a second. The number is calculated by multiplying the bus width by the speed of its memory. If the card has DDR memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, 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 number of texture map elements (texels) that are applied per second. This figure is calculated by multiplying the total texture units by the core speed of the chip. The better this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly record to the local memory in one second - measured in millions of pixels per second. The figure 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 rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.