Radeon HD 6770 vs Radeon RX 470

Intro

Compare those specs to the Radeon RX 470, which comes with core clock speeds of 926 MHz on the GPU, and 1650 MHz on the 8192 MB of GDDR5 memory. It features 2048 SPUs along with 128 Texture Address Units and 32 Rasterization Operator Units.

Display Graphs

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

Radeon RX 470		11756 points
Radeon HD 6770		1520 points
	Difference: 10236 (673%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

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

Memory Bandwidth

The Radeon RX 470, in theory, should perform quite a bit faster than the Radeon HD 6770 overall. (explain)

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

Texel Rate

The Radeon RX 470 will be quite a bit (approximately 229%) better at texture filtering than the Radeon HD 6770. (explain)

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

Pixel Rate

If using a high screen resolution is important to you, then the Radeon RX 470 is the winner, by far. (explain)

Radeon RX 470		29632 Mpixels/sec
Radeon HD 6770		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: Bandwidth is the max amount of data (in units of megabytes per second) that can be moved over the external memory interface in one second. It is worked out by multiplying the card's bus width by the speed of its memory. In the case of DDR RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed per second. This number is worked out by multiplying the total number of texture units by the core speed of the chip. The better the texel rate, the better the graphics card will be at 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 write to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.