GeForce GTX 460 (OEM) 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 works at a speed of 800 MHz on this particular card. It features 80(16x5) SPUs as well as 8 Texture Address Units and 4 ROPs.

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

The GeForce GTX 460 (OEM) should theoretically perform much 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 much (more or less 600%) better 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 resolution is important to you, then the GeForce GTX 460 (OEM) is the winner, by a large margin. (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 maximum amount of information (measured in megabytes per second) that can be moved over the external memory interface in one second. The number is worked out by multiplying the card's interface width by its memory speed. If the card has DDR memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed per second. This number is worked out by multiplying the total texture units of the card by the core speed of the chip. The better the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly record to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.