GeForce 830M vs Radeon RX 570

Intro

Compare those specs to the Radeon RX 570, which has a clock frequency of 1168 MHz and a GDDR5 memory speed of 1750 MHz. It also features a 256-bit memory bus, and uses a 14 nm design. It is comprised of 2048 SPUs, 128 Texture Address Units, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 830M		25 Watts
Radeon RX 570		150 Watts
	Difference: 125 Watts (500%)

Memory Bandwidth

Performance-wise, the Radeon RX 570 should in theory be quite a bit superior to the GeForce 830M overall. (explain)

Radeon RX 570		229376 MB/sec
GeForce 830M		14400 MB/sec
	Difference: 214976 (1493%)

Texel Rate

The Radeon RX 570 is quite a bit (about 808%) more effective at anisotropic filtering than the GeForce 830M. (explain)

Radeon RX 570		149504 Mtexels/sec
GeForce 830M		16464 Mtexels/sec
	Difference: 133040 (808%)

Pixel Rate

If using a high screen resolution is important to you, then the Radeon RX 570 is superior to the GeForce 830M, by far. (explain)

Radeon RX 570		37376 Mpixels/sec
GeForce 830M		8232 Mpixels/sec
	Difference: 29144 (354%)

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 largest amount of data (counted in megabytes per second) that can be transported across the external memory interface in one second. It is calculated by multiplying the card's interface width by its memory speed. In the case of DDR RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied per 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 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 maximum number of pixels that the graphics card could possibly write to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.