Video summary

9800X3D и неприятная правда про «новые» чипсеты AMD

Main summary

Key takeaways

Technology

Key tech/product conclusions (AMD 9800X3D + new AMD chipsets)

Pricing/performance reality check (CPUs)

  • Everyday work tasks

    • The Ryzen 9 9800X3D is not positioned as a clear competitor to higher-end/non-X3D flagships such as Ryzen 9 9950X / 9900X.
    • It’s also not positioned against some cheaper Intel options that may be hard to buy due to limited early availability.

  • Games

    • The 9800X3D (and also Ryzen 7 7600X3D) is described as very impressive.
    • However, the presenter argues that 7600X3D is often the better value:
      • About 60% cheaper at official MSRP.
      • At current reseller pricing: at least ~50% lower cost.
      • Gaming performance is not dramatically worse than the 9800X3D.

“Real graphics settings” testing plan

  • The video claims it will benchmark using real GPU settings:
    • 1440p (Quad HD) and 4K
  • It mentions using a high-end GPU (notably RTX 4090).
  • It also discusses how GPU bottlenecks at 4K can limit CPU differences.

Platform / motherboard review: MSI X870 “Carbon WiFi” (chipset focus)

Major new chipset differentiators (X870 vs prior 600-series)

  • USB4 becomes mandatory

    • On X870/X870E boards, USB4 is mandatory (previously optional).

  • Wi‑Fi 7 is mandatory

    • MSI implements it in a more “honest” way:
      • The presenter notes other brands’ X870 boards use 160 MHz subcarrier channel width.
      • MSI uses 320 MHz, intended to improve throughput and stability.

PCIe lane & storage wiring behavior (USB4 affects allocation)

  • Total PCIe lanes

    • The board is described as providing 44 PCIe lanes total (not counting chipset→CPU links).

  • USB4 controller lane allocation impacts M.2 and GPU slots

    • On this MSI board, the USB4 controller uses 4 dedicated PCIe lanes connected to the CPU.
    • This avoids sharing those lanes with storage, but it can change slot behavior:
      • If M.2 slot #2 is populated, the second GPU/PCIe slot configuration changes.
      • The presenter describes GPU slot width dropping from x16 to x8 while M.2 resources are allocated.
    • The presenter warns this varies by design:
      • On some boards, USB4 may be shared with M.2, leading to more aggressive tradeoffs.
      • Users should check the manufacturer lane diagram.

USB4 performance expectation

  • USB4 implementation

    • MSI uses a third-party controller.
    • The presenter suggests the CPU controller is more “Thunderbolt 4” oriented.

  • Throughput claims

    • Under some contexts, USB device links max at ~20 Gbps.
    • Thunderbolt devices can reach ~40 Gbps.
    • This difference is attributed to how the controller connects in the platform.

4K benchmark claim for PCIe lane split impact

  • The presenter tests with RTX 4090 while using an SSD in M.2 slot 1 vs slot 2.
  • The measured performance impact is only about ~2% drawdown.
  • Conclusion: most GPUs won’t meaningfully suffer from these lane/slot constraints in typical usage.

Memory / overclocking analysis (Ryzen X3D, 9800X3D specifics)

BIOS/Memory behavior with the new platform

  • Memory support claims

    • MSI “Carbon” claims support up to ~8400 MT/s.
    • The presenter tested around ~8800 MT/s, but notes module limitations prevent further scaling.

  • Controller/mode effects differ by CPU

    • For 9950X
      • A 2:1 controller mode reportedly performs better than 1:1 in scenarios relevant to the presenter’s testing.
    • For 9800X3D
      • Switching controller mode can reduce performance.
      • Only a small memory optimization gives roughly ~2% gains.

Overclocking conclusion (skeptical tone)

  • The presenter argues overclocking for games is often senseless:

    • Gains are usually small.
    • Risk and complexity increase.

  • RU Sandbox note

    • The presenter mentions tools like “RU Sandbox” (idro sandbox) may unlock behavior/power characteristics.
    • They also reference a report where someone couldn’t revert changes, allegedly degrading the CPU.
    • Takeaway: caution is advised.

Power/thermal behavior under load

  • Using Prime95 (default settings):
    • The system reportedly prevents runaway consumption.
    • 9950X is described as limited by consumption.
    • Example values:
      • Around ~200W in an open bench after ~15 minutes
      • Temperature around ~59°C
    • The presenter suggests the X3D variant is even more constrained / lower consumption.
  • General claim: the Ryzen 9 series shows diminishing returns as consumption increases—performance doesn’t scale much.

BIOS feature: “x3D Gaming” / SMT disabling behavior

What the option does (as described)

  • MSI’s “x3D Gaming” option:
    • Disables half the cores / or disables SMT depending on CPU
    • The goal is gaming performance improvement via scheduling/compute tuning.

Game-dependent results

  • PUBG

    • 9950X improves about ~14%
    • 9800X3D improves only about ~6% (ballpark)

  • Cyberpunk

    • Gains are smaller:
      • 9950X: ~7–8%
    • 9800X3D: described as significantly worse, around ~9% drop (garbled “99%” phrasing appears in subtitles but implies a meaningful loss)

Presenter recommendation

  • Don’t enable it for 9800X3D / X3D chips.
  • It can harm performance depending on the specific title.

Integrated graphics test (9800X3D iGPU availability)

  • The video uses HDMI + USB4 display output ports to show that:

    • 9800X3D has limited integrated graphics
    • It’s intended for display output, not gaming.

  • The presenter warns against marketing confusion:

    • Contrasts X-series chips with G-series APU products.

CPU comparison methodology: where bottlenecks appear

GPU-bound vs CPU-bound scenarios

  • At 4K

    • Many games become GPU-limited
    • This creates a flat frame-rate graph, reducing visible CPU differences.

  • At 1440p (Quad HD)

    • CPU differences are more visible,
    • but still depend on whether the GPU can sustain the highest frame rates.

Example benchmark logic

  • 9800X3D can beat an older 5800X3D by up to about ~40% in a CPU-limited situation.
  • In more GPU-heavy cases, differences shrink because the GPU cannot produce frames fast enough for the CPU advantage to matter.

Gaming relevance “reassessed” + purchasing guidance

  • If a user’s workload is mostly games:

    • X3D chips are framed as excellent.

  • If users need more versatility and value:

    • The presenter prefers alternatives:
      • 9950X is described as cheaper and more versatile.
      • 7600X3D is suggested as possibly the best value if the goal is only gaming.

Common issues / troubleshooting note

  • Performance “gaps” may come from:

    • Incorrect CPU installation into the socket.

  • A story is mentioned where:

    • A CPU arrived with bent textolite / clamping force issues
    • The motherboard/CPU exchange was handled by Vlad
    • Repairs were reportedly covered by Vlad
    • This is used as an argument for buying from vendors with real warranty/service.

Main speakers/sources (as referenced in subtitles)

  • Presenter / narrator (unnamed in subtitles)
  • Vlad (supplier/person who provided the MSI motherboard and handled repairs)
  • Selectel (sponsorship/promotion for IT infrastructure migration: “My selectel.ru”)
  • MSI (motherboard/BIOS features discussed: Carbon WiFi, “x3D Gaming”, and related performance behavior)

Original video