Radeon HD 5770 vs Radeon R7 M260X

Intro

Compare all of that to the Radeon R7 M260X, which comes with GPU clock speed of 825 MHz, and 2048 MB of GDDR5 memory running at 1000 MHz through a 128-bit bus. It also is comprised of 384 Stream Processors, 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 5770 should theoretically be just a bit superior to the Radeon R7 M260X overall. (explain)

Radeon HD 5770		76800 MB/sec
Radeon R7 M260X		64000 MB/sec
	Difference: 12800 (20%)

Texel Rate

The Radeon HD 5770 is a lot (about 72%) faster with regards to texture filtering than the Radeon R7 M260X. (explain)

Radeon HD 5770		34000 Mtexels/sec
Radeon R7 M260X		19800 Mtexels/sec
	Difference: 14200 (72%)

Pixel Rate

If using a high screen resolution is important to you, then the Radeon HD 5770 is a better choice, by a large margin. (explain)

Radeon HD 5770		13600 Mpixels/sec
Radeon R7 M260X		6600 Mpixels/sec
	Difference: 7000 (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 information (counted in MB per second) that can be transferred across the external memory interface in one second. It is worked out by multiplying the card's interface width by its memory clock speed. In the case of DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly record to the local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.