GeForce GT 440 3GB vs Radeon HD 6450 (OEM)

Intro

Compare all that to the Radeon HD 6450 (OEM), which features a core clock speed of 625 MHz and a GDDR3 memory speed of 800 MHz. It also features a 64-bit bus, and uses a 40 nm design. It is made up 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)		31 Watts
GeForce GT 440 3GB		56 Watts
	Difference: 25 Watts (81%)

Memory Bandwidth

Performance-wise, the GeForce GT 440 3GB should in theory be quite a bit superior to the Radeon HD 6450 (OEM) in general. (explain)

GeForce GT 440 3GB		43200 MB/sec
Radeon HD 6450 (OEM)		12800 MB/sec
	Difference: 30400 (238%)

Texel Rate

The GeForce GT 440 3GB should be a lot (more or less 185%) better at AF than the Radeon HD 6450 (OEM). (explain)

GeForce GT 440 3GB		14256 Mtexels/sec
Radeon HD 6450 (OEM)		5000 Mtexels/sec
	Difference: 9256 (185%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GT 440 3GB is the winner, and very much so. (explain)

GeForce GT 440 3GB		14256 Mpixels/sec
Radeon HD 6450 (OEM)		2500 Mpixels/sec
	Difference: 11756 (470%)

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 largest amount of information (counted in MB per second) that can be transferred over the external memory interface in a second. It's calculated by multiplying the card's bus width by the speed of its memory. If it uses DDR memory, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher 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 amount of texture map elements (texels) that can be processed per second. This figure is worked out by multiplying the total amount of texture units of the card by the core speed of the chip. The higher the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly write to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.