GeForce 810M vs Radeon HD 5450

Intro

Compare all of that to the Radeon HD 5450, which uses a 40 nm design. AMD has clocked the core speed at 650 MHz. The DDR3 memory runs at a speed of 800 MHz on this card. It features 80(16x5) SPUs along with 8 TAUs and 4 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 810M		15 Watts
Radeon HD 5450		19 Watts
	Difference: 4 Watts (27%)

Memory Bandwidth

Theoretically speaking, the GeForce 810M should be 13% quicker than the Radeon HD 5450 in general, because of its greater bandwidth. (explain)

GeForce 810M		14400 MB/sec
Radeon HD 5450		12800 MB/sec
	Difference: 1600 (13%)

Texel Rate

The GeForce 810M will be a small bit (about 14%) better at texture filtering than the Radeon HD 5450. (explain)

GeForce 810M		5904 Mtexels/sec
Radeon HD 5450		5200 Mtexels/sec
	Difference: 704 (14%)

Pixel Rate

The GeForce 810M is a small bit (more or less 14%) better at full screen anti-aliasing than the Radeon HD 5450, and will be capable of handling higher resolutions without slowing down too much. (explain)

GeForce 810M		2952 Mpixels/sec
Radeon HD 5450		2600 Mpixels/sec
	Difference: 352 (14%)

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 max amount of data (measured in MB per second) that can be moved past the external memory interface in a second. It is worked out by multiplying the card's bus width by its memory clock speed. If it uses DDR memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied per second. This figure is calculated by multiplying the total texture units by the core speed of the chip. The higher this number, the better the video 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 amount of Render Output Units 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 fill rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.