[AT]AMD Demonstrates "FreeSync", Free G-Sync Alternative, at CES 2014

[loccothan]

Good i like AMD, they are Cool Company

 

[96Firebird]

When can we expect these monitors to start showing up?

 

[railven]

When can we expect these monitors to start showing up?

Speculation is some monitors just need a firmware update. If true, that would be interesting. I checked my Korean knock off and it seems to support 33hz through 75hz.

Not sure what that means, but since switching to SLI GTX 660 Ti from CFX 7970, @1440p not all my games do 60 FPS locked. Would be interesting if a firmware update would let me try out FreeSync.

 

[Paul98]

It uses only V-Sync when the frame rate is <=30FPS or reach the maximum hz of the monitor. Between both ends G-Sync doesn't use any kind of V-Sync.



That's the reason why the GPU communicates with the G-Sync module. The module is responsible to refresh the monitor.



G-Sync only operates to maximum Hz of a monitor. Under that a monitor is always able to render a frame faster than the GPU is able to deliver.



No, the end result is not the same. Using TB will introduce lag and stuttering. VBLANK limits the "maximum Hz" of a monitor to a lower one. Change the VBLANK is only possible by throwing frames away before you can display them. Or to use more buffers to analyse the stream.

Really the only difference I see is the refresh rate of the GSync module and the refresh rate on the monitor under freesync. Seems the GSync module has a higher refresh rate so it gets less lag moving the image to the screen. The rest of how they work seems basically the same.

 

[Gunbuster]

Was going to post about the AMD/ATI track record with new tech (Crossfire frame pacing & Enduro) but I see blackened23 has everything covered.

Don't worry, AMD can fix it all in software at some point in the future.

 

[blastingcap]

Crossfire + Eyefinity is the real problem, Crossfire framepacing is already done IIRC.

 

[parvadomus]

Nice show, NV got buttkicked.. AGAIN.


Thread crapping will not be tolerated.

-Rvenger

 

[96Firebird]

Speculation is some monitors just need a firmware update. If true, that would be interesting. I checked my Korean knock off and it seems to support 33hz through 75hz.

Eh, I'm looking for more than speculation. I am in the market for a new monitor soon so I'd like to get an idea if this is worth pursuing, or if G-sync is more in my future.

After reading a bit more, it seems there isn't really much to this yet. A little premature on the announcement of it IMO, but I hope its not going to be another "wait and see" technology...

 

[sushiwarrior]

Wouldn't it be great if panel vendors started adding more support for VBLANK, AMD and Nvidia both added support for it purely through drivers, and then we could all have frame syncing for FREE... Gsync works great and all, but paying that much money for it? Strapping an FPGA to monitors? That just seems barbaric. It's certainly an early adopter product.

 

[sontin]

Really the only difference I see is the refresh rate of the GSync module and the refresh rate on the monitor under freesync. Seems the GSync module has a higher refresh rate so it gets less lag moving the image to the screen. The rest of how they work seems basically the same.

Modifying the VBLANK sets the display to a new refresh rate.
G-Sync on the other hand is refreshing the display with every new frame and not in a static intervall.

There is a reason why AMD thinks that variable refresh rate and triple buffering should be as good.

 

[stahlhart]

Per the OP's request, thread closed.
-- stahlhart