Flex 170 GPU from Intel - Subscription Free GPU Accelerated VDI on Proxmox 8.1
Why Hacker News recommends it
Referenced in discussions of GPU virtualization and VDI as a demo of licensing-free GPU sharing.
What it is
Level1Techs' Wendell shows Intel's Flex 170 GPU providing GPU-accelerated virtual desktops on Proxmox 8.1 without subscription licensing, using SR-IOV, and demonstrates many desktop instances running at once.
Recommended by 0 HN commenters across 0 different months, 2024 to 2025.
What Hacker News said
Cites belthesar · 2024-04 · on “Why is remote desktop slow when host monitor is off unless HDMI cable is used?”
Like most thing in Windows, the sauce is buried under layers of Registry tweaks and/or Group Policies, but enabling RemoteFX (released with Windows Server 2008 R2 SP1) for RDP enables both h.264/h.265 stream compression, and with additional settings changes to enforce usage of the GPU on the desktop session over RDP, you can get solid 3D acceleration. In this video from Wendell @ Level1Techs, he had 31 virtual desktop instances all running with full GPU acceleration, with RDP as the VDI client software. [this video] . As another data point, I had game developers remoting into their workstations during Quarantine, using RDP with full graphics acceleration using the same tweaks. What the shinier VD
Cites paulmd · 2024-05 · on “Apple introduces M4 chip”
gpu passthrough for VMs is not supported on apple silicon period afaik. there may be some "native" renderer built on top of metal but apple doesn't support SR-IOV or "headless passthrough". [LINK] otoh no, it is not "more or less [automatic]" in other hardware either, SR-IOV has been on the enthusiast wishlist for a ridiculously long time now because basically nobody implements it (or, they restrict it to the most datacenter-y of products). intel iGPUs from the HD/UHD Intel Graphics Technology era have a concept called GVT-g which isn't quite SR-IOV but generally does the thing. Newer Xe-based iGPUs do not support this, nor do the discrete graphics cards. AMD's iGPUs do not have anything at
Cites justinclift · 2024-05 · on “VMware Fusion Pro: Now available free for personal use”
There are new VDI contenders still coming up though. This caught my attention recently (due to trialling Proxmox for another purpose): [this video] There's clearly still demand for VDI solutions too. A recent example: [LINK]
Cites yvdriess · 2025-03 · on “Raytracing on Intel's Arc B580”
Some counter points. On the die size argument, which I see being echoed a lot online: Why would a customer care or factor that into their purchasing decisions? Saying that these dGPUs with large dies are what is going to put Intel out of business is ludicrous and the Xe cores are shared amongst many of Intel's most lucrative products. You can afford larger dies on N4 compared to when the 40-series were launched. It's no longer the leading edge node and yields have likely improved. dGPUs have pretty expensive GDDR modules, I do not have data on the exact proportion but I would bet that the memory modules is the more important line item. BoM matters less on lower volume (compared to mobile SoC