Radeon HD 4850 1GB vs Radeon R5 M330

Intro

Compare those specs to the Radeon R5 M330, which makes use of a 28 nm design. AMD has set the core frequency at 1030 MHz. The DDR3 memory runs at a frequency of 900 MHz on this specific model. It features 320 SPUs along with 20 TAUs and 8 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the Radeon HD 4850 1GB should be 341% faster than the Radeon R5 M330 in general, because of its greater data rate. (explain)

Radeon HD 4850 1GB		63552 MB/sec
Radeon R5 M330		14400 MB/sec
	Difference: 49152 (341%)

Texel Rate

The Radeon HD 4850 1GB will be much (about 21%) better at texture filtering than the Radeon R5 M330. (explain)

Radeon HD 4850 1GB		25000 Mtexels/sec
Radeon R5 M330		20600 Mtexels/sec
	Difference: 4400 (21%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon HD 4850 1GB is superior to the Radeon R5 M330, and very much so. (explain)

Radeon HD 4850 1GB		10000 Mpixels/sec
Radeon R5 M330		8240 Mpixels/sec
	Difference: 1760 (21%)

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 (in units of megabytes per second) that can be transported over the external memory interface within a second. The number is worked out by multiplying the bus width by the speed of its memory. If it uses DDR RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed per second. This number is worked out by multiplying the total texture units of the card 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 applied per second.

Pixel Rate: Pixel rate is the most pixels the video card can possibly record to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.