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Which of these cheap graphics cards are better.

Last response: in Graphics & Displays
January 31, 2012 5:50:34 PM

VisionTek 900331 Radeon HD 5550 Video Card - 1GB, DDR2, PCI-Express 2.0

Sapphire 100322L Radeon HD 6450 Video Card - 1GB, GDDR3, PCI-Express 2.0

The HD 5550 has more processing units but the 6450 has ddr3 or is their little difference between drr2 and ddr3 on low end graphics cards.

More about : cheap graphics cards

a b U Graphics card
January 31, 2012 9:41:50 PM

On such a Low-End Graphic cards, Memory won't really matter much, since you would only be able to play at 720p.

GPU Power = More performance at raw graphics. (And GPGPU Computing)
Memory Bandwidth = Better performance at High Resolution Games. (And AA)

In general, an 5550 should be ~150% more performant than an 6450.

So in short, the 6450 is useless in games, benchmarks tell that the 6450 only can play latest games at around 6 Fps, compared to the 5550 that can achieve at around 20 Fps.
You can also try to buy the 6670, it is an low-end graphic card that perform really well compared to other low-end cards, it can even achieve 40Fps in BF3 at medium settings.

Hope it helps! :) 

Also, if you Only can buy the 5550, try to buy the GDDR3 512MB version, 1GB is useless for low-end graphic cards, even for the 6670.