GeForce GTS 450 1GB vs Radeon HD 6450 (OEM) 1GB

Intro

Compare that to the Radeon HD 6450 (OEM) 1GB, which has a clock frequency of 750 MHz and a GDDR5 memory speed of 900 MHz. It also uses a 64-bit bus, and makes use of a 40 nm design. It is comprised of 160 SPUs, 8 Texture Address Units, and 4 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6450 (OEM) 1GB		31 Watts
GeForce GTS 450 1GB		106 Watts
	Difference: 75 Watts (242%)

Memory Bandwidth

In theory, the GeForce GTS 450 1GB is 100% quicker than the Radeon HD 6450 (OEM) 1GB overall, because of its greater bandwidth. (explain)

GeForce GTS 450 1GB		57728 MB/sec
Radeon HD 6450 (OEM) 1GB		28800 MB/sec
	Difference: 28928 (100%)

Texel Rate

The GeForce GTS 450 1GB will be much (approximately 318%) more effective at texture filtering than the Radeon HD 6450 (OEM) 1GB. (explain)

GeForce GTS 450 1GB		25056 Mtexels/sec
Radeon HD 6450 (OEM) 1GB		6000 Mtexels/sec
	Difference: 19056 (318%)

Pixel Rate

The GeForce GTS 450 1GB should be much (more or less 318%) more effective at AA than the Radeon HD 6450 (OEM) 1GB, and should be capable of handling higher screen resolutions more effectively. (explain)

GeForce GTS 450 1GB		12528 Mpixels/sec
Radeon HD 6450 (OEM) 1GB		3000 Mpixels/sec
	Difference: 9528 (318%)

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 information (measured in megabytes per second) that can be moved past the external memory interface in one second. The number is calculated by multiplying the interface width by its memory speed. In the case of DDR memory, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better 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 amount of 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 this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.