Radeon HD 5770 vs Radeon R9 M365X

Intro

Compare all that to the Radeon R9 M365X, which has a GPU core clock speed of 925 MHz, and 4096 MB of GDDR5 memory set to run at 1125 MHz through a 128-bit bus. It also is made up of 640 SPUs, 40 TAUs, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Performance-wise, the Radeon HD 5770 should theoretically be a little bit superior to the Radeon R9 M365X overall. (explain)

Radeon HD 5770		76800 MB/sec
Radeon R9 M365X		72000 MB/sec
	Difference: 4800 (7%)

Texel Rate

The Radeon R9 M365X is just a bit (approximately 9%) more effective at anisotropic filtering than the Radeon HD 5770. (explain)

Radeon R9 M365X		37000 Mtexels/sec
Radeon HD 5770		34000 Mtexels/sec
	Difference: 3000 (9%)

Pixel Rate

The Radeon R9 M365X should be a little bit (approximately 9%) better at FSAA than the Radeon HD 5770, and will be capable of handling higher screen resolutions while still performing well. (explain)

Radeon R9 M365X		14800 Mpixels/sec
Radeon HD 5770		13600 Mpixels/sec
	Difference: 1200 (9%)

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 largest amount of data (measured in MB per second) that can be moved across the external memory interface within a second. The number is calculated by multiplying the bus width by its memory speed. In the case of DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher 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 amount of texture map elements (texels) that are processed per second. This figure is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The higher this number, the better the 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 most pixels the graphics card can possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel 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.