GeForce 830M vs Radeon RX 480 4GB

Intro

Compare that to the Radeon RX 480 4GB, which features core speeds of 1120 MHz on the GPU, and 1750 MHz on the 4096 MB of GDDR5 memory. 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 830M		25 Watts
Radeon RX 480 4GB		150 Watts
	Difference: 125 Watts (500%)

Memory Bandwidth

The Radeon RX 480 4GB should in theory be a lot faster than the GeForce 830M overall. (explain)

Radeon RX 480 4GB		229376 MB/sec
GeForce 830M		14400 MB/sec
	Difference: 214976 (1493%)

Texel Rate

The Radeon RX 480 4GB will be quite a bit (about 880%) better at AF than the GeForce 830M. (explain)

Radeon RX 480 4GB		161280 Mtexels/sec
GeForce 830M		16464 Mtexels/sec
	Difference: 144816 (880%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Radeon RX 480 4GB is superior to the GeForce 830M, by far. (explain)

Radeon RX 480 4GB		35840 Mpixels/sec
GeForce 830M		8232 Mpixels/sec
	Difference: 27608 (335%)

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 largest amount of information (counted in megabytes per second) that can be moved across the external memory interface in one second. It's worked out by multiplying the card's bus width by its memory clock speed. If it uses DDR type RAM, the result should be multiplied by 2 again. If it uses 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 higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed per second. This figure is worked out by multiplying the total amount of texture units by the core speed of the chip. The higher the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly record to the local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.