GeForce GTX 880M vs Radeon HD 3850 1GB

Intro

Compare those specs to the Radeon HD 3850 1GB, which makes use of a 55 nm design. AMD has clocked the core frequency at 668 MHz. The GDDR3 memory runs at a frequency of 828 MHz on this card. It features 320(64x5) SPUs along with 16 TAUs and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 3850 1GB		75 Watts
GeForce GTX 880M		130 Watts
	Difference: 55 Watts (73%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 880M should theoretically be much better than the Radeon HD 3850 1GB in general. (explain)

GeForce GTX 880M		128000 MB/sec
Radeon HD 3850 1GB		52992 MB/sec
	Difference: 75008 (142%)

Texel Rate

The GeForce GTX 880M will be a lot (approximately 1043%) faster with regards to texture filtering than the Radeon HD 3850 1GB. (explain)

GeForce GTX 880M		122112 Mtexels/sec
Radeon HD 3850 1GB		10688 Mtexels/sec
	Difference: 111424 (1043%)

Pixel Rate

The GeForce GTX 880M is quite a bit (about 186%) more effective at AA than the Radeon HD 3850 1GB, and also should be able to handle higher resolutions better. (explain)

GeForce GTX 880M		30528 Mpixels/sec
Radeon HD 3850 1GB		10688 Mpixels/sec
	Difference: 19840 (186%)

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 maximum amount of data (counted in MB per second) that can be moved past the external memory interface in a second. The number is calculated by multiplying the card's bus width by its memory speed. If the card has DDR type memory, it must be multiplied by 2 once 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 anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed in one second. This figure is calculated by multiplying the total texture units by the core clock speed of the chip. The higher this number, the better the graphics 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 amount of pixels the video card could possibly record to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.