GeForce GTX 550 Ti vs Radeon HD 6450 (OEM) 1GB

Intro

Compare all of that to the Radeon HD 6450 (OEM) 1GB, which makes use of a 40 nm design. AMD has set the core speed at 750 MHz. The GDDR5 memory is set to run at a frequency of 900 MHz on this card. It features 160 SPUs as well as 8 Texture Address Units and 4 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6450 (OEM) 1GB		31 Watts
GeForce GTX 550 Ti		116 Watts
	Difference: 85 Watts (274%)

Memory Bandwidth

In theory, the GeForce GTX 550 Ti will be 242% faster than the Radeon HD 6450 (OEM) 1GB overall, due to its greater data rate. (explain)

GeForce GTX 550 Ti		98496 MB/sec
Radeon HD 6450 (OEM) 1GB		28800 MB/sec
	Difference: 69696 (242%)

Texel Rate

The GeForce GTX 550 Ti is quite a bit (more or less 380%) faster with regards to AF than the Radeon HD 6450 (OEM) 1GB. (explain)

GeForce GTX 550 Ti		28800 Mtexels/sec
Radeon HD 6450 (OEM) 1GB		6000 Mtexels/sec
	Difference: 22800 (380%)

Pixel Rate

The GeForce GTX 550 Ti should be quite a bit (approximately 620%) faster with regards to anti-aliasing than the Radeon HD 6450 (OEM) 1GB, and will be capable of handling higher screen resolutions more effectively. (explain)

GeForce GTX 550 Ti		21600 Mpixels/sec
Radeon HD 6450 (OEM) 1GB		3000 Mpixels/sec
	Difference: 18600 (620%)

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 largest amount of information (counted in megabytes per second) that can be moved over the external memory interface in a second. It is worked out by multiplying the interface width by the speed of its memory. In the case of DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied in one second. This is worked out by multiplying the total number of texture units by the core speed of the chip. The better this number, the better the video 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 number of pixels the video card could possibly record to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of Raster Operations Pipelines by the the core speed of the card. 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 - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.