GeForce 830M vs Radeon HD 3470 512MB

Intro

Compare those specifications to the Radeon HD 3470 512MB, which comes with clock speeds of 800 MHz on the GPU, and 950 MHz on the 512 MB of GDDR3 memory. It features 40(8x5) SPUs as well as 4 Texture Address Units and 4 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

As far as performance goes, the Radeon HD 3470 512MB should theoretically be a lot better than the GeForce 830M overall. (explain)

Radeon HD 3470 512MB		30400 MB/sec
GeForce 830M		14400 MB/sec
	Difference: 16000 (111%)

Texel Rate

The GeForce 830M should be much (approximately 415%) faster with regards to texture filtering than the Radeon HD 3470 512MB. (explain)

GeForce 830M		16464 Mtexels/sec
Radeon HD 3470 512MB		3200 Mtexels/sec
	Difference: 13264 (415%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce 830M is a better choice, by far. (explain)

GeForce 830M		8232 Mpixels/sec
Radeon HD 3470 512MB		3200 Mpixels/sec
	Difference: 5032 (157%)

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 a second. It's calculated by multiplying the interface width by the speed of its memory. In the case of DDR type memory, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Render Output Units by the clock 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 is also dependant on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.