GeForce GTX 960M vs Radeon HD 5450

Intro

Compare those specs to the Radeon HD 5450, which has a clock speed of 650 MHz and a DDR3 memory speed of 800 MHz. It also features a 64-bit bus, and uses a 40 nm design. It is comprised of 80(16x5) SPUs, 8 Texture Address Units, and 4 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5450		19 Watts
GeForce GTX 960M		65 Watts
	Difference: 46 Watts (242%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 960M should perform quite a bit faster than the Radeon HD 5450 overall. (explain)

GeForce GTX 960M		64000 MB/sec
Radeon HD 5450		12800 MB/sec
	Difference: 51200 (400%)

Texel Rate

The GeForce GTX 960M will be quite a bit (more or less 743%) better at AF than the Radeon HD 5450. (explain)

GeForce GTX 960M		43840 Mtexels/sec
Radeon HD 5450		5200 Mtexels/sec
	Difference: 38640 (743%)

Pixel Rate

The GeForce GTX 960M will be quite a bit (more or less 574%) better at full screen anti-aliasing than the Radeon HD 5450, and also should be able to handle higher screen resolutions without losing too much performance. (explain)

GeForce GTX 960M		17536 Mpixels/sec
Radeon HD 5450		2600 Mpixels/sec
	Difference: 14936 (574%)

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 information (in units of MB per second) that can be transferred over the external memory interface in a second. The number is calculated by multiplying the card's bus width by its memory speed. In the case of DDR memory, it should be multiplied by 2 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, HDR and high 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 clock speed of the chip. The higher the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly write to its local memory in a 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 - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.