Radeon HD 4850 2GB vs Radeon R5 M230

Intro

Compare all of that to the Radeon R5 M230, which makes use of a 28 nm design. AMD has clocked the core speed at 780 MHz. The DDR3 RAM runs at a speed of 1000 MHz on this specific card. It features 320 SPUs as well as 20 TAUs and 4 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

The Radeon HD 4850 2GB, in theory, should perform quite a bit faster than the Radeon R5 M230 overall. (explain)

Radeon HD 4850 2GB		63552 MB/sec
Radeon R5 M230		16000 MB/sec
	Difference: 47552 (297%)

Texel Rate

The Radeon HD 4850 2GB should be much (approximately 60%) better at AF than the Radeon R5 M230. (explain)

Radeon HD 4850 2GB		25000 Mtexels/sec
Radeon R5 M230		15600 Mtexels/sec
	Difference: 9400 (60%)

Pixel Rate

The Radeon HD 4850 2GB is a lot (more or less 221%) faster with regards to anti-aliasing than the Radeon R5 M230, and also able to handle higher screen resolutions without slowing down too much. (explain)

Radeon HD 4850 2GB		10000 Mpixels/sec
Radeon R5 M230		3120 Mpixels/sec
	Difference: 6880 (221%)

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 moved past the external memory interface in one second. It is worked out by multiplying the card's interface width by the speed of its memory. If the card has DDR RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the 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 can be processed per second. This is worked out by multiplying the total number of texture units by the core clock speed of the chip. The higher this number, the better the graphics 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 most pixels that the graphics chip could possibly record to the local memory in one 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 called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.