GeForce GTX 860M vs Radeon HD 5450

Intro

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

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5450		19 Watts
GeForce GTX 860M		45 Watts
	Difference: 26 Watts (137%)

Memory Bandwidth

In theory, the GeForce GTX 860M should be 400% faster than the Radeon HD 5450 overall, because of its higher data rate. (explain)

GeForce GTX 860M		64000 MB/sec
Radeon HD 5450		12800 MB/sec
	Difference: 51200 (400%)

Texel Rate

The GeForce GTX 860M is a lot (about 1371%) more effective at anisotropic filtering than the Radeon HD 5450. (explain)

GeForce GTX 860M		76512 Mtexels/sec
Radeon HD 5450		5200 Mtexels/sec
	Difference: 71312 (1371%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GTX 860M is a better choice, by a large margin. (explain)

GeForce GTX 860M		12752 Mpixels/sec
Radeon HD 5450		2600 Mpixels/sec
	Difference: 10152 (390%)

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 (measured in MB per second) that can be moved over the external memory interface in one second. It is worked out by multiplying the bus width by the speed of its memory. If it uses DDR type RAM, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly record to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number 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 output rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.