Radeon HD 4650 512MB vs Radeon R7 M360

Intro

Compare that to the Radeon R7 M360, which makes use of a 28 nm design. AMD has set the core frequency at 1125 MHz. The DDR3 RAM runs at a speed of 1000 MHz on this specific model. It features 384 SPUs as well as 24 Texture Address Units and 8 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

Both cards have exactly the same bandwidth, so theoretically they should have identical performance. (explain)

Texel Rate

The Radeon R7 M360 is a lot (approximately 41%) more effective at anisotropic filtering than the Radeon HD 4650 512MB. (explain)

Radeon R7 M360		27000 Mtexels/sec
Radeon HD 4650 512MB		19200 Mtexels/sec
	Difference: 7800 (41%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon R7 M360 is the winner, and very much so. (explain)

Radeon R7 M360		9000 Mpixels/sec
Radeon HD 4650 512MB		4800 Mpixels/sec
	Difference: 4200 (88%)

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 (measured in MB per second) that can be moved past the external memory interface within a second. It is calculated by multiplying the card's bus width by the speed of its memory. If the card has DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the better 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 applied in one second. This is worked out by multiplying the total texture units by the core clock speed of the chip. The higher the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly write to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.