GeForce 940M vs Radeon HD 5850

Intro

Compare that to the Radeon HD 5850, which uses a 40 nm design. AMD has set the core frequency at 725 MHz. The GDDR5 RAM is set to run at a frequency of 1000 MHz on this particular card. It features 1440(288x5) SPUs as well as 72 TAUs and 32 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the Radeon HD 5850 should perform much faster than the GeForce 940M overall. (explain)

Radeon HD 5850		128000 MB/sec
GeForce 940M		16000 MB/sec
	Difference: 112000 (700%)

Texel Rate

The Radeon HD 5850 should be quite a bit (more or less 103%) more effective at anisotropic filtering than the GeForce 940M. (explain)

Radeon HD 5850		52200 Mtexels/sec
GeForce 940M		25728 Mtexels/sec
	Difference: 26472 (103%)

Pixel Rate

If using a high screen resolution is important to you, then the Radeon HD 5850 is a better choice, by a large margin. (explain)

Radeon HD 5850		23200 Mpixels/sec
GeForce 940M		8576 Mpixels/sec
	Difference: 14624 (171%)

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 (in units of MB per second) that can be transported over the external memory interface in one second. It is worked out by multiplying the interface width by its memory speed. If the card has DDR type RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed in one second. This is worked out by multiplying the total number of texture units of the card 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 processed in a second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of ROPs by the the core clock speed. 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 quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.