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G-Sync is a con?

kee

kee

kee

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28 Mar 2010
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http://gamenab.net/2015/01/26/truth...using-vesa-adaptive-sync-technology-freesync/

Finding it a bit hard to parse the writing, but my understanding after reading that page is that

1) Gsync is just a hardware module that says 'yes this is a gsync display'
2) The technology is standard and exists in any DP1.2 display, implementation is at the driver level
3) Just spent 500 quid on a display that is functionality identical to the 300 quid model without the gsync stamp on it ;)

How can Nvid/OEMs get away with this? :)
 
No conspiracy from me, just dropped a grand on nvidia-related kit, just wondering if I've been duped :)
 
Fair enough, apologies for contributing to the FUD!

Reading around it seems like there's plenty of opinion on what is / isn't part of Gsync. Would be handy to have a trusted party tear it down and debunk this guy beyond 'your vid doesn't look any better'.
 
http://www.overclock.net/t/1538208/nvidia-g-sync-free-on-dp-1-2-monitors/10#post_23466190

We started looking into this over at PCPer. There are some glaring issues with this guys thinking / results:
  • He claims the Altera FPGA was chosen because of its 'security features', but it's really nothing more than a SHA-1 engine that could be enabled (an FPGA is meant to be a programmable device with all sorts of uses, and some of those uses might include wanting hardware SHA-1 processing). GSYNC doesn't SHA-1 encrypt the bitstream and these GSYNC FPGA's are very likely not touching that optional portion of the chip.
  • His first 'proof' video was shot with a game running in a window. G-SYNC / adaptive sync doesn't work that way (full screen only).
  • Aside from the fact that it is very hard to actually show differences between VSYNC-on and GSYNC when pointing a camera at a PC display, closely examining his second video shows the same type of VSYNC judder present when he selects VSYNC or GSYNC.
  • Comments are disabled for both of his videos.
It looks like this guy just tweaked the drivers to let him enable GSYNC in software, regardless of the connected display, but it doesn't seem to actually be doing anything different in the end.
Click to expand...

Not sure if I'm able to delete this thread, so please do so mods - sorry for flapping so easily guys - took the bait like a chump!
 
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