GeForce GTX 285 2GB vs Radeon HD 6450 (OEM)

Intro

Compare that to the Radeon HD 6450 (OEM), which makes use of a 40 nm design. AMD has set the core frequency at 625 MHz. The GDDR3 RAM is set to run at a speed of 800 MHz on this particular card. It features 160 SPUs along with 8 TAUs and 4 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6450 (OEM)		31 Watts
GeForce GTX 285 2GB		204 Watts
	Difference: 173 Watts (558%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 285 2GB should theoretically be much superior to the Radeon HD 6450 (OEM) in general. (explain)

GeForce GTX 285 2GB		158976 MB/sec
Radeon HD 6450 (OEM)		12800 MB/sec
	Difference: 146176 (1142%)

Texel Rate

The GeForce GTX 285 2GB should be quite a bit (approximately 937%) more effective at anisotropic filtering than the Radeon HD 6450 (OEM). (explain)

GeForce GTX 285 2GB		51840 Mtexels/sec
Radeon HD 6450 (OEM)		5000 Mtexels/sec
	Difference: 46840 (937%)

Pixel Rate

The GeForce GTX 285 2GB will be a lot (approximately 729%) more effective at FSAA than the Radeon HD 6450 (OEM), and also will be capable of handling higher screen resolutions better. (explain)

GeForce GTX 285 2GB		20736 Mpixels/sec
Radeon HD 6450 (OEM)		2500 Mpixels/sec
	Difference: 18236 (729%)

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 data (in units of megabytes per second) that can be moved across the external memory interface in a second. It's worked out by multiplying the bus width by the speed of its memory. If the card has DDR type memory, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster 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 can be processed per second. This number is calculated by multiplying the total number of texture units by the core clock speed of the chip. The higher this number, the better the graphics card will be at 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 write to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.