Radeon HD 6770 vs Radeon R7 M260

Intro

Compare those specifications to the Radeon R7 M260, which makes use of a 28 nm design. AMD has set the core frequency at 715 MHz. The DDR3 memory works at a speed of 1000 MHz on this particular card. It features 384 SPUs as well as 24 TAUs and 8 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 HD 6770		1520 points
Radeon R7 M260		1120 points
	Difference: 400 (36%)

Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the Radeon HD 6770 will be 320% quicker than the Radeon R7 M260 overall, due to its higher bandwidth. (explain)

Radeon HD 6770		67200 MB/sec
Radeon R7 M260		16000 MB/sec
	Difference: 51200 (320%)

Texel Rate

The Radeon HD 6770 is quite a bit (about 110%) better at AF than the Radeon R7 M260. (explain)

Radeon HD 6770		36000 Mtexels/sec
Radeon R7 M260		17160 Mtexels/sec
	Difference: 18840 (110%)

Pixel Rate

The Radeon HD 6770 will be much (about 152%) better at full screen anti-aliasing than the Radeon R7 M260, and should be capable of handling higher screen resolutions better. (explain)

Radeon HD 6770		14400 Mpixels/sec
Radeon R7 M260		5720 Mpixels/sec
	Difference: 8680 (152%)

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 data (counted in MB per second) that can be moved across the external memory interface in a second. It is worked out by multiplying the interface width by its memory speed. If it uses DDR RAM, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied per second. This figure is worked out by multiplying the total texture units of the card by the core clock 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 applied per second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of colour ROPs by the the card's clock speed. 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 output rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.