GeForce 940M vs Radeon HD 5450

Intro

Compare those specifications to the Radeon HD 5450, which has core clock speeds of 650 MHz on the GPU, and 800 MHz on the 512 MB of DDR3 RAM. It features 80(16x5) SPUs as well as 8 TAUs and 4 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

Performance-wise, the GeForce 940M should in theory be much superior to the Radeon HD 5450 in general. (explain)

GeForce 940M		16000 MB/sec
Radeon HD 5450		12800 MB/sec
	Difference: 3200 (25%)

Texel Rate

The GeForce 940M should be much (approximately 395%) faster with regards to anisotropic filtering than the Radeon HD 5450. (explain)

GeForce 940M		25728 Mtexels/sec
Radeon HD 5450		5200 Mtexels/sec
	Difference: 20528 (395%)

Pixel Rate

The GeForce 940M should be quite a bit (about 230%) better at full screen anti-aliasing than the Radeon HD 5450, and also should be capable of handling higher screen resolutions without slowing down too much. (explain)

GeForce 940M		8576 Mpixels/sec
Radeon HD 5450		2600 Mpixels/sec
	Difference: 5976 (230%)

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 transported across the external memory interface within a second. It is calculated by multiplying the card's bus width by its memory speed. In the case of DDR RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high 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 of the card by the core 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 applied in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of colour ROPs by the clock 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 also depends on lots of 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.