Radeon HD 5770 vs Radeon R7 M260X

Intro

Compare all of that to the Radeon R7 M260X, which makes use of a 28 nm design. AMD has clocked the core speed at 825 MHz. The GDDR5 memory works at a frequency of 1000 MHz on this particular model. It features 384 SPUs as well as 24 Texture Address Units and 8 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the Radeon HD 5770 is 20% faster than the Radeon R7 M260X overall, because of its higher data rate. (explain)

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

Texel Rate

The Radeon HD 5770 will be quite a bit (approximately 72%) better at 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 will be much (about 106%) better at anti-aliasing than the Radeon R7 M260X, and will be able to handle higher screen resolutions better. (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 max amount of information (in units of MB per second) that can be transferred over the external memory interface within a second. It's calculated by multiplying the interface width by the speed of its memory. If the card has DDR RAM, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed in one second. This is worked out by multiplying the total number of texture units of the card by the core clock speed of the chip. The better this number, the better the 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 graphics card could possibly record to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of ROPs by the clock 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 is also dependant on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.