GeForce GT 450 (OEM) vs Radeon HD 3470 512MB

Intro

Compare that to the Radeon HD 3470 512MB, which uses a 55 nm design. AMD has set the core frequency at 800 MHz. The GDDR3 RAM works at a speed of 950 MHz on this particular model. It features 40(8x5) SPUs as well as 4 TAUs and 4 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically, the GeForce GT 450 (OEM) should be a lot faster than the Radeon HD 3470 512MB in general. (explain)

GeForce GT 450 (OEM)		96000 MB/sec
Radeon HD 3470 512MB		30400 MB/sec
	Difference: 65600 (216%)

Texel Rate

The GeForce GT 450 (OEM) should be much (about 493%) more effective at texture filtering than the Radeon HD 3470 512MB. (explain)

GeForce GT 450 (OEM)		18960 Mtexels/sec
Radeon HD 3470 512MB		3200 Mtexels/sec
	Difference: 15760 (493%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce GT 450 (OEM) is superior to the Radeon HD 3470 512MB, by far. (explain)

GeForce GT 450 (OEM)		18960 Mpixels/sec
Radeon HD 3470 512MB		3200 Mpixels/sec
	Difference: 15760 (493%)

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 data (in units of megabytes per second) that can be transferred across the external memory interface within a second. It is worked out by multiplying the card's bus width by its memory clock speed. If the card has DDR type RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the faster 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 can be processed per second. This is calculated by multiplying the total number of texture units by the core speed of the chip. The higher the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the most pixels the video card can possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of ROPs 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 rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.