Radeon HD 6770 1GB vs Radeon R7 M260X

Intro

Compare that to the Radeon R7 M260X, which comes with GPU clock speed of 825 MHz, and 2048 MB of GDDR5 RAM set to run at 1000 MHz through a 128-bit bus. It also features 384 SPUs, 24 Texture Address Units, and 8 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

Performance-wise, the Radeon HD 6770 1GB should theoretically be a small bit superior to the Radeon R7 M260X overall. (explain)

Radeon HD 6770 1GB		67200 MB/sec
Radeon R7 M260X		64000 MB/sec
	Difference: 3200 (5%)

Texel Rate

The Radeon HD 6770 1GB should be much (about 82%) faster with regards to AF than the Radeon R7 M260X. (explain)

Radeon HD 6770 1GB		36000 Mtexels/sec
Radeon R7 M260X		19800 Mtexels/sec
	Difference: 16200 (82%)

Pixel Rate

The Radeon HD 6770 1GB should be quite a bit (approximately 118%) faster with regards to FSAA than the Radeon R7 M260X, and capable of handling higher resolutions more effectively. (explain)

Radeon HD 6770 1GB		14400 Mpixels/sec
Radeon R7 M260X		6600 Mpixels/sec
	Difference: 7800 (118%)

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 megabytes per second) that can be moved past the external memory interface in a second. The number is worked out by multiplying the bus width by its memory speed. If the card has DDR RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, 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 texture map elements (texels) that are applied per second. This number is worked out by multiplying the total number of texture units of the card by the core clock speed of the chip. The better the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly write to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.