GeForce GTX 880M vs Radeon HD 3850 512MB

Intro

Compare those specifications to the Radeon HD 3850 512MB, which uses a 55 nm design. AMD has clocked the core frequency at 668 MHz. The GDDR3 memory works at a speed of 828 MHz on this particular card. It features 320(64x5) SPUs along with 16 Texture Address Units and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 3850 512MB		75 Watts
GeForce GTX 880M		130 Watts
	Difference: 55 Watts (73%)

Memory Bandwidth

In theory, the GeForce GTX 880M should perform quite a bit faster than the Radeon HD 3850 512MB in general. (explain)

GeForce GTX 880M		128000 MB/sec
Radeon HD 3850 512MB		52992 MB/sec
	Difference: 75008 (142%)

Texel Rate

The GeForce GTX 880M should be quite a bit (about 1043%) better at anisotropic filtering than the Radeon HD 3850 512MB. (explain)

GeForce GTX 880M		122112 Mtexels/sec
Radeon HD 3850 512MB		10688 Mtexels/sec
	Difference: 111424 (1043%)

Pixel Rate

The GeForce GTX 880M should be much (more or less 186%) faster with regards to FSAA than the Radeon HD 3850 512MB, and also capable of handling higher resolutions without slowing down too much. (explain)

GeForce GTX 880M		30528 Mpixels/sec
Radeon HD 3850 512MB		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: Memory bandwidth is the maximum amount of information (measured in MB per second) that can be transported across the external memory interface within a second. It's calculated by multiplying the card's bus width by its memory clock speed. In the case of DDR memory, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly write to the local memory in a second - measured in millions of pixels per second. The number is worked out 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 filling the screen with pixels (the image). The actual pixel fill rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.