Overclock.net › Forums › Components › Monitors and Displays › (Reviewed) $400 2560x1440 IPS no-AG 90hz+ Achieva Shimian QH270 and Catleap Q270
New Posts  All Forums:Forum Nav:

(Reviewed) $400 2560x1440 IPS no-AG 90hz+ Achieva Shimian QH270 and Catleap Q270 - Page 61

Poll Results: Vote when your Achieva/Catleap monitor comes in.

 
  • 40% (216)
    Achieva QH270
  • 2% (12)
    Achieva QH270 (DOA / didn't recieve)
  • 8% (44)
    Achieva QH270 (Dead pixel(s) / flawed panel)
  • 41% (217)
    Catleap Q270
  • 1% (8)
    Catleap Q270 (DOA / didn't recieve)
  • 6% (32)
    Catleap Q270 (Dead pixel(s) / flawed panel)
529 Total Votes  
post #601 of 4748
3/1/12 at 6:49pm
I don't believe the 97hz is correct... that's far beyond the spec of DVI-D--the most it could reasonably handle is around 75hz. It may say 97hz in the control panel but it's definitely NOT refreshing at 97hz.

2560x1440 @ 75hz: Bandwidth: 9.84 Gbit (w/overhead) or 276.48 MHz.
2560x1440 @ 97hz: Bandwidth: 12.73 Gbit (w/overhead) or 357.58 MHz.
DVI-D Dual Link = 9.9 Gbit (330 MHz)

edit; IF someone could get it running at 75hz that would definitely be interesting though! I remember my old 2209WA could be pushed to 75hz and there was definitely a noticeable improvement in smoothness of motion.
Reply
Reply

Gear mentioned in this thread:

post #602 of 4748
3/1/12 at 6:50pm
Trail and error to get to 97. This is what happens when I try 98 and above....

db0r5mwd.upc.jpg
Reply
Reply
post #603 of 4748
3/1/12 at 6:51pm
Quote:
Originally Posted by Xiphos View Post

Quote:
Originally Posted by noak View Post

He's making a profit, its a business.
Every other retailer does this, why complain when a eBay seller does?

and how am I complaining? I expect them to make a profit.
When ughnook asked for a lower price, I merely pointed out to ughnook that dreamseller's profit margin is roughly 10%. which I find reasonable.

Not you, but some people were wondering why the seller is selling this for more than it costs him. I just found your post related to my rant smile.gif
Reply
Reply
post #604 of 4748
3/1/12 at 6:53pm
Quote:
Originally Posted by necriss View Post

Trail and error to get to 97. This is what happens when I try 98 and above....
db0r5mwd.upc.jpg

But is there any noticeable improvement in motion? You should be able to tell immediately after changing it that your mouse cursor is A LOT smoother, which I doubt is the case. With no OSD there's no way to check if it's actually running at the refresh rate it says it is unless you can test a game with vsync or something like that (would that work?)

You should try 72-75hz and see if you can see an actual improvement.
Reply
Reply
post #605 of 4748
3/1/12 at 6:56pm
Quote:
Originally Posted by ibtar View Post

But is there any noticeable improvement in motion? You should be able to tell immediately after changing it that your mouse cursor is A LOT smoother, which I doubt is the case. With no OSD there's no way to check if it's actually running at the refresh rate it says it is unless you can test a game with vsync or something like that (would that work?)
You should try 72-75hz and see if you can see an actual improvement.


see above, I tested Alan Wake vsync'd and it ran 97 at max fps. Yes it appears a lot smoother, not sure whether its true 97hz but still a good improvement over 60hz.
Reply
Reply
post #606 of 4748
3/1/12 at 6:56pm
Thread Starter 
Quote:
Originally Posted by necriss View Post

Trail and error to get to 97. This is what happens when I try 98 and above....
db0r5mwd.upc.jpg

Makes sense. I'm new to this whole monitor overclocking thing.


Has anyone done this on an ATI card?
Bruce
(14 items)
  		  
CPUMotherboardGraphicsGraphics
Phenom II x4 965 (c3) ASUS 790X M4A79XTD EVO Gigabyte 6850 6850 
RAMHard DriveOptical DriveOS
AData 2x2gb DDR3 1600 Seagate 1TB 7200RPM LG blu Ray Burner Windows 7 HP x64 
MonitorPowerCase
1360x768 Samsung TV + old 1280x1024 monitor Corsair TX750 Antec 300 Black Illusion 
View all
  hide details  
Reply
Bruce
(14 items)
  		  
CPUMotherboardGraphicsGraphics
Phenom II x4 965 (c3) ASUS 790X M4A79XTD EVO Gigabyte 6850 6850 
RAMHard DriveOptical DriveOS
AData 2x2gb DDR3 1600 Seagate 1TB 7200RPM LG blu Ray Burner Windows 7 HP x64 
MonitorPowerCase
1360x768 Samsung TV + old 1280x1024 monitor Corsair TX750 Antec 300 Black Illusion 
View all
  hide details  
Reply
post #607 of 4748
3/1/12 at 6:58pm
Quote:
Originally Posted by necriss View Post

see above, I tested Alan Wake vsync'd and it ran 97 at max fps. Yes it appears a lot smoother, not sure whether its true 97hz but still a good improvement over 60hz.

Oh I missed the screenshot. It doesn't make sense, but fraps doesn't lie...
Reply
Reply
post #608 of 4748
3/1/12 at 7:03pm
Okay, I found this on wikipedia, but it's not cited.

http://en.wikipedia.org/wiki/Digital_visual_interface#Specifications
Quote:
Dual link maximum data rate is limited only by the bandwidth limits of the copper the DVI cable is constructed of and by the DVI signal's source.
Reply
Reply
post #609 of 4748
3/1/12 at 7:16pm
Thread Starter 
Hmm, you could try these tests.

http://www.lagom.nl/lcd-test/response_time.php
http://hardforum.com/showthread.php?t=1423433
Bruce
(14 items)
  		  
CPUMotherboardGraphicsGraphics
Phenom II x4 965 (c3) ASUS 790X M4A79XTD EVO Gigabyte 6850 6850 
RAMHard DriveOptical DriveOS
AData 2x2gb DDR3 1600 Seagate 1TB 7200RPM LG blu Ray Burner Windows 7 HP x64 
MonitorPowerCase
1360x768 Samsung TV + old 1280x1024 monitor Corsair TX750 Antec 300 Black Illusion 
View all
  hide details  
Reply
Bruce
(14 items)
  		  
CPUMotherboardGraphicsGraphics
Phenom II x4 965 (c3) ASUS 790X M4A79XTD EVO Gigabyte 6850 6850 
RAMHard DriveOptical DriveOS
AData 2x2gb DDR3 1600 Seagate 1TB 7200RPM LG blu Ray Burner Windows 7 HP x64 
MonitorPowerCase
1360x768 Samsung TV + old 1280x1024 monitor Corsair TX750 Antec 300 Black Illusion 
View all
  hide details  
Reply
post #610 of 4748
3/1/12 at 7:19pm
Um, can anyone verify the 97hz trick on a Shimian IPSBS version. Some more on the Catleap version as well. This is going to be a BIG deal if we can truly get 75 or 97hz refresh rate....
Reply
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Monitors and Displays

Gear mentioned in this thread:

Overclock.net › Forums › Components › Monitors and Displays › (Reviewed) $400 2560x1440 IPS no-AG 90hz+ Achieva Shimian QH270 and Catleap Q270