GeForce 830M vs Radeon HD 6670 (OEM) 1GB

Intro

Compare those specs to the Radeon HD 6670 (OEM) 1GB, which makes use of a 40 nm design. AMD has clocked the core frequency at 800 MHz. The GDDR5 memory works at a frequency of 1000 MHz on this card. It features 480 SPUs along with 24 TAUs and 8 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 830M		25 Watts
Radeon HD 6670 (OEM) 1GB		63 Watts
	Difference: 38 Watts (152%)

Memory Bandwidth

In theory, the Radeon HD 6670 (OEM) 1GB should be 344% faster than the GeForce 830M in general, due to its greater bandwidth. (explain)

Radeon HD 6670 (OEM) 1GB		64000 MB/sec
GeForce 830M		14400 MB/sec
	Difference: 49600 (344%)

Texel Rate

The Radeon HD 6670 (OEM) 1GB is just a bit (more or less 17%) better at AF than the GeForce 830M. (explain)

Radeon HD 6670 (OEM) 1GB		19200 Mtexels/sec
GeForce 830M		16464 Mtexels/sec
	Difference: 2736 (17%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce 830M is superior to the Radeon HD 6670 (OEM) 1GB, by far. (explain)

GeForce 830M		8232 Mpixels/sec
Radeon HD 6670 (OEM) 1GB		6400 Mpixels/sec
	Difference: 1832 (29%)

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 (measured in MB per second) that can be transferred over the external memory interface in one second. The number is worked out by multiplying the card's interface width by the speed of its memory. In the case of DDR type RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better 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 number of texture map elements (texels) that are applied in one second. This is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The higher this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly write to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.