Radeon HD 5770 vs Radeon R7 M260X

Intro

Compare all that to the Radeon R7 M260X, which has a core clock frequency of 825 MHz and a GDDR5 memory speed of 1000 MHz. It also makes use of a 128-bit memory bus, and makes use of a 28 nm design. It is comprised of 384 SPUs, 24 Texture Address Units, and 8 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the Radeon HD 5770 should perform a bit faster than 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 should be a lot (more or less 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

The Radeon HD 5770 is much (about 106%) better at AA than the Radeon R7 M260X, and also should be capable of handling higher screen resolutions while still performing well. (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: Memory bandwidth is the maximum amount of data (counted in MB per second) that can be transported past the external memory interface within a second. It's calculated by multiplying the bus width by its memory speed. In the case of DDR type memory, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, 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 number 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 higher this number, the better the video card will be at handling 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 the graphics card can possibly write to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the amount of colour ROPs by the the card's clock speed. 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 is also dependant on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.