GeForce GTX 260 vs Radeon HD 5450

Intro

Compare that to the Radeon HD 5450, which has clock speeds of 650 MHz on the GPU, and 800 MHz on the 512 MB of DDR3 RAM. 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 260		182 Watts
	Difference: 163 Watts (858%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 260 should be 774% faster than the Radeon HD 5450 in general, due to its higher bandwidth. (explain)

GeForce GTX 260		111888 MB/sec
Radeon HD 5450		12800 MB/sec
	Difference: 99088 (774%)

Texel Rate

The GeForce GTX 260 is much (about 609%) more effective at texture filtering than the Radeon HD 5450. (explain)

GeForce GTX 260		36864 Mtexels/sec
Radeon HD 5450		5200 Mtexels/sec
	Difference: 31664 (609%)

Pixel Rate

The GeForce GTX 260 is much (about 520%) more effective at AA than the Radeon HD 5450, and also capable of handling higher resolutions without slowing down too much. (explain)

GeForce GTX 260		16128 Mpixels/sec
Radeon HD 5450		2600 Mpixels/sec
	Difference: 13528 (520%)

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 max amount of information (counted in MB per second) that can be transferred across the external memory interface in a second. It is worked out by multiplying the card's interface width by its memory speed. If the card has DDR memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly record to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Raster Operations Pipelines by the the core 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 is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.