GeForce 830M vs Radeon HD 5570

Intro

Compare all that to the Radeon HD 5570, which uses a 40 nm design. AMD has clocked the core frequency at 650 MHz. The DDR3 RAM is set to run at a frequency of 900 MHz on this specific card. It features 400(80x5) SPUs along with 20 Texture Address Units and 8 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 830M		25 Watts
Radeon HD 5570		43 Watts
	Difference: 18 Watts (72%)

Memory Bandwidth

Performance-wise, the Radeon HD 5570 should in theory be a lot superior to the GeForce 830M overall. (explain)

Radeon HD 5570		28800 MB/sec
GeForce 830M		14400 MB/sec
	Difference: 14400 (100%)

Texel Rate

The GeForce 830M is a lot (approximately 27%) faster with regards to anisotropic filtering than the Radeon HD 5570. (explain)

GeForce 830M		16464 Mtexels/sec
Radeon HD 5570		13000 Mtexels/sec
	Difference: 3464 (27%)

Pixel Rate

The GeForce 830M will be quite a bit (more or less 58%) more effective at anti-aliasing than the Radeon HD 5570, and should be able to handle higher screen resolutions more effectively. (explain)

GeForce 830M		8232 Mpixels/sec
Radeon HD 5570		5200 Mpixels/sec
	Difference: 3032 (58%)

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 max amount of information (counted in MB per second) that can be transported past the external memory interface within a second. It is calculated by multiplying the interface width by its memory speed. If it uses DDR RAM, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly record to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.