GeForce 940M vs Radeon HD 5550

Intro

Compare those specs to the Radeon HD 5550, which comes with clock speeds of 550 MHz on the GPU, and 400 MHz on the 512 MB of DDR2 RAM. It features 320(64x5) SPUs as well as 16 TAUs and 8 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

The GeForce 940M, in theory, should be quite a bit faster than the Radeon HD 5550 overall. (explain)

GeForce 940M		16000 MB/sec
Radeon HD 5550		12800 MB/sec
	Difference: 3200 (25%)

Texel Rate

The GeForce 940M is much (more or less 192%) faster with regards to anisotropic filtering than the Radeon HD 5550. (explain)

GeForce 940M		25728 Mtexels/sec
Radeon HD 5550		8800 Mtexels/sec
	Difference: 16928 (192%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce 940M is superior to the Radeon HD 5550, by far. (explain)

GeForce 940M		8576 Mpixels/sec
Radeon HD 5550		4400 Mpixels/sec
	Difference: 4176 (95%)

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 megabytes per second) that can be moved over the external memory interface in one second. It is worked out by multiplying the card's interface width by the speed of its memory. If the card has DDR RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the video 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 colour ROPs by the the core 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 lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.