GeForce GTX 880M vs Radeon HD 4550 512MB

Intro

Compare those specifications to the Radeon HD 4550 512MB, which makes use of a 55 nm design. AMD has clocked the core speed at 600 MHz. The GDDR3 RAM runs at a speed of 800 MHz on this particular card. It features 80(16x5) SPUs along with 8 TAUs and 4 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4550 512MB		25 Watts
GeForce GTX 880M		130 Watts
	Difference: 105 Watts (420%)

Memory Bandwidth

The GeForce GTX 880M should theoretically be a lot faster than the Radeon HD 4550 512MB in general. (explain)

GeForce GTX 880M		128000 MB/sec
Radeon HD 4550 512MB		12800 MB/sec
	Difference: 115200 (900%)

Texel Rate

The GeForce GTX 880M should be a lot (more or less 2444%) better at AF than the Radeon HD 4550 512MB. (explain)

GeForce GTX 880M		122112 Mtexels/sec
Radeon HD 4550 512MB		4800 Mtexels/sec
	Difference: 117312 (2444%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GTX 880M is the winner, by far. (explain)

GeForce GTX 880M		30528 Mpixels/sec
Radeon HD 4550 512MB		2400 Mpixels/sec
	Difference: 28128 (1172%)

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 largest amount of data (counted in MB per second) that can be transferred past the external memory interface within a second. The number 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 it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, 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 amount of texture map elements (texels) that can be processed per second. This number is worked out by multiplying the total texture units of the card by the core 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 applied in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends 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.