Radeon HD 6770 vs Radeon RX 570

Intro

Compare those specs to the Radeon RX 570, which has clock speeds of 1168 MHz on the GPU, and 1750 MHz on the 4096 MB of GDDR5 RAM. It features 2048 SPUs along with 128 TAUs and 32 ROPs.

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 570		12108 points
Radeon HD 6770		1520 points
	Difference: 10588 (697%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6770		108 Watts
Radeon RX 570		150 Watts
	Difference: 42 Watts (39%)

Memory Bandwidth

Theoretically speaking, the Radeon RX 570 will be 241% quicker than the Radeon HD 6770 in general, because of its greater data rate. (explain)

Radeon RX 570		229376 MB/sec
Radeon HD 6770		67200 MB/sec
	Difference: 162176 (241%)

Texel Rate

The Radeon RX 570 will be much (approximately 315%) more effective at anisotropic filtering than the Radeon HD 6770. (explain)

Radeon RX 570		149504 Mtexels/sec
Radeon HD 6770		36000 Mtexels/sec
	Difference: 113504 (315%)

Pixel Rate

The Radeon RX 570 will be quite a bit (approximately 160%) more effective at anti-aliasing than the Radeon HD 6770, and should be capable of handling higher screen resolutions while still performing well. (explain)

Radeon RX 570		37376 Mpixels/sec
Radeon HD 6770		14400 Mpixels/sec
	Difference: 22976 (160%)

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 data (counted in megabytes per second) that can be moved over the external memory interface within a second. The number 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 higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly write to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Raster Operations Pipelines by the the core 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 fill rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.