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Recently we have changed our method of measuring noise levels. We have built a system inside a Lian Li chassis with no case fans and have used a fanless cooler on our CPU. We are using a heatpipe based passive power supply and an Intel SSD to keep noise levels to a minimum. The motherboard is also passively cooled. This gives us a build with completely passive cooling and it means we can measure noise of just the graphics card inside the system when we run looped 3dMark tests. Ambient noise in the room is around 20 dBa. We measure from a distance of around 1 meter from the chassis and 4 foot from the ground to mirror a real world situation.
Why do this? Well this means we can eliminate secondary noise pollution in the test room and concentrate on only the video card. It also brings us slightly closer to industry standards, such as DIN 45635.
KitGuru noise guide
10dBA – Normal Breathing/Rustling Leaves
20-25dBA – Whisper
30dBA – High Quality Computer fan
40dBA – A Bubbling Brook, or a Refridgerator
50dBA – Normal Conversation
60dBA – Laughter
70dBA – Vacuum Cleaner or Hairdryer
80dBA – City Traffic or a Garbage Disposal
90dBA – Motorcycle or Lawnmower
100dBA – MP3 player at maximum output
110dBA – Orchestra
120dBA – Front row rock concert/Jet Engine
130dBA – Threshold of Pain
140dBA – Military Jet takeoff/Gunshot (close range)
160dBA – Instant Perforation of eardrum
Before we set up our test environment we were already aware that the Powercolor HD5750 Low Profile seemed to be the loudest of the three cards, under load. Our scientific testing shows a maximum dB rating of 38.2 while the XFX single slot cooler rates around 36.8dBa. The best performing cooler is on the eVGA GTS450 with a maximum rating of 35.7 dBA, which, when paired up with our thermals testing on the previous page, prove this cooler is doing the best job.
It is really good to see lower end cards reviewed here, the high end boards are great, but I doubt many people can afford them.
That XFX board is great. looks like a bargain to me.
This market is really so friggin sweet right now. anyone with a semi decent sized monitor, this is all they need. im not a gaming fanatic so maybe people wouldnt agree.
Nah its a good point Tom. if someone has a 1920×1200 screen, a 460GTX is all they need, unless they want crazy performance. 1080p, or 1680 then the cards on test today are great. the low end is so strong right now, it has to be killing high end cards sales.
I actually might pick one of these up for my kid brother for christmas. we are all putting a system together for him. cant believe how good the performance is for the price.
XFX and Sapphire, only cards to buy IMO
450GTS is good but I dont think its a dominating product like the 460 was. its killed 5830, and even hurt 5850’s. The 450 is a good board but the overclocked ATI cards are really going punch for punch.
I like that single slot design. the powercolor card is different but the shape looks weird.
Fantastic review, loads of detail and useful info.
wonder how long it will be for other sites to copy the return to idle concept 😉
GTS450 is a good card but I agree, it isnt dominating like the 460 is. the price is good and I like evga, this would be my choice out of the three, mainly cause I dont like catalyst.
@ Tri Color – Catalyst is great now, not a problem, I wouldnt let the drivers put you off the hardware.
@ Stefan – nah, they still suck. my buddy has a 5850 and the cat alyst 10.8 broke his HDMI scaling and every time he boots up he has to fix it. same with Cat 10.9. they are still a poor driver compared to nvidia forceware.