GeForce GTX 460 (OEM) vs Radeon HD 5450

Intro

Compare all of that to the Radeon HD 5450, which comes with a core clock frequency of 650 MHz and a DDR3 memory speed of 800 MHz. It also uses a 64-bit bus, and uses a 40 nm design. It features 80(16x5) SPUs, 8 TAUs, and 4 Raster Operation Units.

Display Graphs

Hide Graphs

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 perform much faster than the Radeon HD 5450 in general. (explain)

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

Texel Rate

The GeForce GTX 460 (OEM) is a lot (about 600%) more effective at texture 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

If running with a high screen resolution is important to you, then the GeForce GTX 460 (OEM) is the winner, and very much so. (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: Memory bandwidth is the max amount of data (measured in megabytes per second) that can be transferred over the external memory interface in one second. It is worked out by multiplying the card's bus width by its memory clock speed. If it uses DDR type RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly write to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Raster Operations Pipelines by the the core clock speed. 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 output rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.