GeForce 825M vs Radeon RX 480 4GB

Intro

Compare those specs to the Radeon RX 480 4GB, which makes use of a 14 nm design. AMD has clocked the core speed at 1120 MHz. The GDDR5 memory is set to run at a frequency of 1750 MHz on this specific model. It features 2304 SPUs as well as 144 Texture Address Units and 32 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 825M		33 Watts
Radeon RX 480 4GB		150 Watts
	Difference: 117 Watts (355%)

Memory Bandwidth

The Radeon RX 480 4GB should in theory be much faster than the GeForce 825M in general. (explain)

Radeon RX 480 4GB		229376 MB/sec
GeForce 825M		14400 MB/sec
	Difference: 214976 (1493%)

Texel Rate

The Radeon RX 480 4GB is much (about 1086%) more effective at texture filtering than the GeForce 825M. (explain)

Radeon RX 480 4GB		161280 Mtexels/sec
GeForce 825M		13600 Mtexels/sec
	Difference: 147680 (1086%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Radeon RX 480 4GB is superior to the GeForce 825M, by far. (explain)

Radeon RX 480 4GB		35840 Mpixels/sec
GeForce 825M		6800 Mpixels/sec
	Difference: 29040 (427%)

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 maximum amount of data (counted in megabytes per second) that can be moved over the external memory interface in one second. It is worked out by multiplying the bus width by its memory speed. If the card has DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed per second. This figure is calculated 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 video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly write to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.