Windows 8 Allows New HP ARM Thin-Clients, AMD APU Clients Also Showed Off
October 16, 2012 1:33 PM
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Yes, they can even play Crysis
The idea of so-called "thin-client" virtualization is simple and not terribly new. The idea is basically you take a very powerful server computer and create a number of hosted environments on it, and then stream video to cheap, low-powered desktop clients. The hosted environments receive all the input (say keyboard and mouse) from the clients.
I. Power Efficient CPUs Drive HP's Growing Thin-Client Army
While the idea itself is not all that new, low-power processing and broadband streaming technology has only just now reached the point where server makers can come up with the products to make it attractive and affordable on a wide scale.
One of the key companies leading the way
), which is looking to leverage emerging processor design to offer businesses cheap and capable thin-clients.
It's current demoing
-- one based on a 1 GHz Texas Instruments Inc. (
) chip using an ARM Holdings Plc (
) Cortex-A8 intellectual property core + instruction set, and the other using a 1.65 GHz dual-core T56N
"accelerated processing unit" (APU)
from Advanced Micro Devices, Inc. (
), which comes with a built in Radeon graphics processing unit.
These cheap, low-power processors from TI/ARM and AMD prove the key to HP's ambitious thin-client vision.
A pair of HP t610 thin-clients (powered by AMD APUs)
(The ARM product is dubbed the HP t410 AiO Smart Zero Client, while the AMD APU variant is named the HP t610 Flexible Thin Client.)
Michael Clifford, HP Director, Cloud Computing, UK&I, spoke about
showing the new designs
at the upcoming
, which is being held this Wednesday and Thursday in London. He comments, "The Cloud Computing space is constantly accelerating and maturing, and it is important that IT departments are not left behind. At this year's IP EXPO, we will demonstrate how our secure cloud solutions establish the ideal foundation, allowing businesses to become the 'service broker' and decide how and where to deliver IT services, opening limitless horizons of new abilities and powers."
So what does all that mean?
Your employer may soon be replacing your full-fledged PC (expensive) with a small, lightweight, power-efficient thin-client (cheaper). But you won't see any performance hit (in-theory), thanks to the beefy server back-end.
II. Enabled by Windows 8
Speaking of that back-end, that gets back to a final player in both HP and its rival's thin client experience -- Microsoft Corp. (
). Microsoft's latest Windows 7 and Windows Server operating systems are offering
a technology called RemoteFX
, which allows the server backend to deliver a so-called "remote desktop" (the virtualized workspace) to the thin-client. Microsoft shows off the might of RemoteFX in a recent video, showing that yes, a thin-client really can play
While Windows 8 is
for introducing the
controversial Metro reskin
of the start menu and other features businesses don't care as much about (
), the upcoming OS is good news for businesses when it comes to thin-clients. Why?
Well, the latest and greatest upcoming thin clients such as the HP t410 AiO that use cheap, power-efficient ARM processors -- the same chips used in smartphones and tablets -- won't run on Windows 7, Windows Vista, or Windows XP.
-- the ARM-centric version of Windows 8 -- will be the
first Microsoft operating system to add support
. In that regard, the ability to leverage ARM-endowed thin clients could prove a key carrot to driving businesses to Windows 8 -- something that would doubtless please Microsoft.
HP [1, press release via IT News Online]
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Good idea, but bad for games
10/16/2012 3:11:05 PM
I'm pretty sure this idea will never catch on for games, but it has other uses.
This idea adds on the latency of communicating over the internet for user actions. Even when playing an offline game everything you do will be noticeably delayed. Some people can feel and have issues with monitor latencies over 30ms, and that delay is only display lag, not user actions lag. Throw at least 50ms on top of that for not only display lag, but input lag from the keyboard and mouse, and you have a problem. Modern lag compensation is already problematic (anyone play BF3?), and I doubt it can help at all for this. Could be fun for a few days if you have nostalgia for the old online gaming days over 56k with a P3 and no hardware mouse, but I think that will wear out fast. For something slow paced like civilization this will be acceptable, but fast paced games like SC2 will be problematic, and fast paced games that require precise clicks such as fps games will be very frustrating.
I'm very curious about how they got Crysis to run in on their demo. An uncompressed 32bit 1920x1080 framebuffer is 8.3MB per frame. The nearly worthless 8 transparency bits could just be dropped off, and I suppose that since most monitors are only 18bit this could be cut down to 4.7MB. To get just 30 fps at 18bits would require 140MB/s over the internet. The framebuffer could be compressed by the server and decompressed by the user's computer, but the PGN format would only cut the image size by around half, while other higher compression formats would impact visual quality. 18bit 1280x720 at 30fps compressed as PGN format would require 31MB/s. I don't think most people have internet that fast. Maybe HP hooked up the thin PC to the server directly with a LAN line?
I see good uses outside of games though. Pretty much anything that requires heavy calculation without requiring fast user input should be OK. Doing college research and need to calculate some protein folding scenarios but you only have a smartphone on you? Send it to a server.
Another interesting idea is if they don't use a server and just do cloud computing on other thin PCs. Computers are usually just idle so the network of thin PCs should be able to support the small fraction at a time that are actually doing heavy computing tasks. It'll only work for highly parallel tasks, but ~100 APUs should get you pretty good performance.
RE: Good idea, but bad for games
10/16/2012 3:18:51 PM
Just watched the video and it looks like Crysis is dropping to below 10fps at times. When the fps drops you can see that motion is still smooth in the background, so it's not the video recording quality. Looks like the frame rate is worse than what the thin PC would be getting if it just used its own APU.
RE: Good idea, but bad for games
10/16/2012 8:21:39 PM
That's funny, I didn't know Crysis ran on extremely low power ARM chips! Oh wait, you didn't listen to what the HP guy said, at all. Or else you'd know the REASON that it ran so poorly was that current (enterprise-oriented) iteration of RemoteFX only allocates up to 200MB of video memory per thin client.
If a home version of RemoteFX comes out, it will have a lot more effort put into gaming. They were just demonstrating that it could indeed stream a DirectX title to a thin client, which on its own is completely unable to run such software.
RE: Good idea, but bad for games
10/16/2012 3:44:50 PM
While I don't think these will be used for gaming, you are comparing different things. These will not have a server on the internet to get their guest os from, it will come from a server (usually LAN). Companies have had stuff like this for awhile, but it was always the bandwidth that was the issue, even on a LAN, 100+mb/s non stop is not really scalable without massive network infrastructure.
The only difference here is that you can now use cheaper terminals, since they are arm based instead of x86.
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