Radeon HD 6770 vs Radeon R9 380 2G

Intro

Compare those specs to the Radeon R9 380 2G, which uses a 28 nm design. AMD has clocked the core frequency at 970 MHz. The GDDR5 memory works at a speed of 1425 MHz on this particular model. It features 1792 SPUs along with 112 Texture Address Units and 32 ROPs.

Display Graphs

Hide Graphs

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 R9 380 2G		8850 points
Radeon HD 6770		1520 points
	Difference: 7330 (482%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6770		108 Watts
Radeon R9 380 2G		190 Watts
	Difference: 82 Watts (76%)

Memory Bandwidth

In theory, the Radeon R9 380 2G is 171% faster than the Radeon HD 6770 in general, due to its greater data rate. (explain)

Radeon R9 380 2G		182400 MB/sec
Radeon HD 6770		67200 MB/sec
	Difference: 115200 (171%)

Texel Rate

The Radeon R9 380 2G is much (about 202%) better at AF than the Radeon HD 6770. (explain)

Radeon R9 380 2G		108640 Mtexels/sec
Radeon HD 6770		36000 Mtexels/sec
	Difference: 72640 (202%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Radeon R9 380 2G is the winner, and very much so. (explain)

Radeon R9 380 2G		31040 Mpixels/sec
Radeon HD 6770		14400 Mpixels/sec
	Difference: 16640 (116%)

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 data (counted in megabytes per second) that can be moved across the external memory interface in a second. The number is worked out by multiplying the bus width by the speed of its memory. If the card has DDR RAM, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the card's 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 number of texture map elements (texels) that are applied per second. This is calculated by multiplying the total texture units of the card by the core speed of the chip. The better this number, the better the graphics card will be at handling 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 video card could possibly write to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.