GeForce GTX 950M vs Radeon HD 4550 512MB

Intro

Compare those specifications to the Radeon HD 4550 512MB, which has GPU core speed of 600 MHz, and 512 MB of GDDR3 memory set to run at 800 MHz through a 64-bit bus. It also is comprised of 80(16x5) Stream Processors, 8 TAUs, and 4 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4550 512MB		25 Watts
GeForce GTX 950M		55 Watts
	Difference: 30 Watts (120%)

Memory Bandwidth

In theory, the GeForce GTX 950M should be 150% faster than the Radeon HD 4550 512MB overall, due to its higher bandwidth. (explain)

GeForce GTX 950M		32000 MB/sec
Radeon HD 4550 512MB		12800 MB/sec
	Difference: 19200 (150%)

Texel Rate

The GeForce GTX 950M will be quite a bit (more or less 662%) faster with regards to anisotropic filtering than the Radeon HD 4550 512MB. (explain)

GeForce GTX 950M		36560 Mtexels/sec
Radeon HD 4550 512MB		4800 Mtexels/sec
	Difference: 31760 (662%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce GTX 950M is superior to the Radeon HD 4550 512MB, by a large margin. (explain)

GeForce GTX 950M		14624 Mpixels/sec
Radeon HD 4550 512MB		2400 Mpixels/sec
	Difference: 12224 (509%)

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 information (counted in MB per second) that can be transferred over the external memory interface in one second. It is calculated by multiplying the bus width by its memory clock 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 faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed per second. This is calculated by multiplying the total texture units of the card by the core speed of the chip. The higher 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 one second.

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly record to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.