GeForce GTX 460 (OEM) vs Radeon HD 5450

Intro

Compare those specs to the Radeon HD 5450, which features GPU core speed of 650 MHz, and 512 MB of DDR3 memory running at 800 MHz through a 64-bit bus. It also features 80(16x5) Stream Processors, 8 TAUs, 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 460 (OEM)		150 Watts
	Difference: 131 Watts (689%)

Memory Bandwidth

Theoretically, the GeForce GTX 460 (OEM) should be a lot faster than the Radeon HD 5450 overall. (explain)

GeForce GTX 460 (OEM)		108800 MB/sec
Radeon HD 5450		12800 MB/sec
	Difference: 96000 (750%)

Texel Rate

The GeForce GTX 460 (OEM) should be quite a bit (more or less 600%) better at anisotropic filtering than the Radeon HD 5450. (explain)

GeForce GTX 460 (OEM)		36400 Mtexels/sec
Radeon HD 5450		5200 Mtexels/sec
	Difference: 31200 (600%)

Pixel Rate

The GeForce GTX 460 (OEM) should be quite a bit (more or less 700%) better at anti-aliasing than the Radeon HD 5450, and also will be able to handle higher resolutions without losing too much performance. (explain)

GeForce GTX 460 (OEM)		20800 Mpixels/sec
Radeon HD 5450		2600 Mpixels/sec
	Difference: 18200 (700%)

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 maximum amount of data (measured in megabytes per second) that can be transferred over the external memory interface in a second. It is worked out by multiplying the card's bus width by its memory speed. If it uses DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the better 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 texture map elements (texels) that can be processed per second. This is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The better this number, 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 most pixels the video card can possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.