The Newegg Combo #4869562 pairs the ASRock DeskMini X600W/USB4 barebone with 32 GB DDR5 RAM and a 2 TB SATA SSD at a significant discount — making it one of the most compelling mini-PC homelab bases available today. For power users who need more headroom, Combo #4869560 upgrades the RAM to 64 GB DDR5. Because the DeskMini X600 is a barebone system, the CPU is the one component you add separately, and that single decision determines your Plex streaming power, VM density, and AI inference capability. This guide maps each CPU tier directly to real-world Plex and homelab workloads so you can choose the right processor for your use case.

Understanding Plex Modes — Why Hardware Matters

Plex operates in three fundamentally different modes, and your hardware requirements depend entirely on which mode your clients trigger:

Mode	Server Load	Hardware Needed	When It Applies
Direct Play	Minimal — just streams bytes	Any modern CPU	Client supports the codec natively (Apple TV 4K, Nvidia Shield, Chromecast 4K)
Direct Stream	Low — remux only, no transcode	Any modern CPU	Client needs a different container but supports the codec
Transcode (1080p)	Medium — ~2,000 PassMark per stream	Any AM5 CPU	Client cannot handle the source quality or codec
Transcode (4K HEVC)	High — ~12,000 PassMark per stream without HW accel	iGPU VA-API required	Downscaling 4K to 1080p for non-4K clients
Transcode (4K AV1)	Very high — ~20,000 PassMark per stream	AMD Radeon 760M+ with VA-API	Modern AV1-encoded content to older clients

Key takeaway: Software 4K transcoding is effectively impossible on mini-PC class hardware — hardware acceleration (VA-API on AMD) is mandatory. The Ryzen 8000G series APUs ship with Radeon 760M/780M graphics that handle exactly this workload. Hardware transcoding also requires an active Plex Pass subscription.

Choose Your CPU — Four Tiers for Every Workload

All four CPUs below fit the DeskMini X600's AM5 socket and stay within its 65 W TDP limit. Pick the tier that matches your primary use case.

Tier 1 · Budget Ryzen 5 8600G ~$150–170 · Zen 4 · 65 W TDP Cores 6C / 12T iGPU Radeon 760M · 8 CU RDNA 3 VA-API Yes (Linux) 4K streams 1–2 simultaneous Ollama LLM Limited (no ROCm on 760M) ~$150–170 CPU only Direct play server 1–2 × 4K transcode Docker stack Pi-hole + HAOS

Tier 2 · Recommended ★ Ryzen 7 8700G ~$220–260 · Zen 4 · 65 W TDP Cores 8C / 16T iGPU Radeon 780M · 12 CU RDNA 3 VA-API Yes + ROCm (Linux) 4K streams 3–4 simultaneous Ollama LLM 15–18 tok/s (7B model) Proxmox VMs 4–6 simultaneous ~$220–260 CPU only Family Plex (3–4 streams) Proxmox 5+ VMs Ollama 7B / 14B Frigate NVR Nextcloud WireGuard VPN

Tier 3 · Heavy VM Ryzen 7 9700X ~$280–320 · Zen 5 · 65 W TDP Cores 8C / 16T · Zen 5 iGPU Radeon 610M (2 CU only) VA-API Limited — direct play preferred Multi-core ~26,000 PassMark Proxmox VMs 6–8 simultaneous ~$280–320 CPU only Proxmox 6–8 VMs TrueNAS SCALE Direct-play Plex only CI/CD runners

Tier 4 · Max Compute Ryzen 9 9900X ~$380–430 · Zen 5 · 65 W TDP Cores 12C / 24T · Zen 5 iGPU Radeon 610M (2 CU) Multi-core ~30,000+ PassMark Proxmox VMs 8+ simultaneous ~$380–430 CPU only Max VM density Windows Server VMs Jellyfin SW transcode Dev / CI workloads

Total Build Cost by Tier

Recommended Homelab Stack — Ryzen 7 8700G Build

The Ryzen 7 8700G with the combo's 32 GB DDR5 supports the following full Proxmox homelab layout simultaneously: This layout is possible because the combo includes 32 GB DDR5 — enough headroom to run a full homelab stack alongside Ollama LLM inference without hitting memory pressure.

Storage Planning

Homelab Service Requirements vs. This Build

Enabling Hardware Transcoding on Linux (VA-API Setup)

For Plex hardware transcoding with the Radeon 760M or 780M on Ubuntu/Proxmox LXC: In Plex Web: Settings → Transcoder → Enable hardware acceleration when available and Enable hardware-accelerated video encoding. Both require Plex Pass.

Plex Pass: Is It Required?

For this build, Plex Pass is required if you want hardware transcoding. Without it, all transcode jobs fall back to software — which on this platform means 1080p streams work fine but 4K transcoding will saturate the CPU. The lifetime plan at $120 is the recommended purchase for always-on home servers; it breaks even against the annual plan in three years and covers unlimited servers and users. Alternatively, Jellyfin is a free, fully self-hosted Plex alternative that includes hardware transcoding at no cost. It uses the same VA-API path on AMD GPUs. Many users run both: Plex for its polished mobile apps and remote access, Jellyfin as a cost-free fallback for home network use.

Who This Build Is For

Choose Tier 1 (Ryzen 5 8600G, ~$755 total) if you run a single-household Plex server where most clients direct-play, supplemented by a lightweight Docker homelab stack (Pi-hole, HAOS, Nginx). The 760M handles 1–2 simultaneous 4K transcode sessions for clients that need it. Choose Tier 2 (Ryzen 7 8700G, ~$840 total — recommended) if you want the full package: 3–4 simultaneous 4K Plex streams for a family of four, a complete Proxmox homelab with 5–6 VMs, and the option to run a local Llama 3 7B model via Ollama ROCm for AI Assist in Home Assistant or private chat. The 32 GB DDR5 in this combo is precisely the right amount for this configuration. Choose Tier 3 (Ryzen 7 9700X, ~$900 total) if Proxmox VM density is the primary goal — running 6–8 VMs simultaneously including a TrueNAS SCALE instance — and your Plex clients all support direct play. The 9700X's 65 W Zen 5 cores deliver desktop-class multi-threaded performance in a 1.92 L chassis. Choose Tier 4 (Ryzen 9 9900X, ~$1,010 total) for maximum compute ceiling: 12 cores for CI/CD runners, Windows Server VMs, or software transcoding in Jellyfin without iGPU dependency. This is the configuration for developers or labs that need raw compute headroom.

CPU prices are estimates based on current market listings and will vary. Combo pricing is subject to change and availability. Always verify CPU compatibility on the ASRock DeskMini X600 CPU support page before purchasing.