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HIGH-END BUILD · 4K

Best 4K Gaming PC Build in Canada

A high-end single-GPU gaming plan built around an exact 2026 X3D CPU identity and the RTX 5080 family, with extra PSU and chassis headroom. The RTX 5090 sits in another cost and workload tier; it is not the automatic recommendation for this gaming build.

Who it is for

For 4K buyers who accept that native rendering, upscaling, frame generation and ray tracing must be evaluated separately per game.

Test in PC Builder →See all 8 parts ↓Open Product Comparator →

IDENTITY, IMAGE & CHECK

Eight parts, eight checks before checkout

  1. 01
    AMD Ryzen 7 9850X3D
    Exact model shown
    CPU

    AMD Ryzen 7 9850X3D

    cpu-amd-ryzen-7-9850x3d · 100-100001973WOF

    The exact 8-core AM5 CPU identity is documented with 120 W default TDP and current DDR5 support.

    Confirm

    Confirm motherboard CPU support and BIOS; no cooler is included.

    Open specs and retailers →
  2. 02
    NVIDIA RTX 5080
    Exact model shown
    Graphics card

    NVIDIA RTX 5080

    gpu:nvidia-rtx-5080 · Family — choose partner MPN

    A high-end single-GPU family selected for a 4K-oriented purchase path.

    Exact partner example: MSI GeForce RTX 5080 16G VENTUS 3X OC ↗

    Confirm

    Verify exact partner-model dimensions, slot thickness, cable path and outputs.

    Open specs and retailers →
  3. 03
    ASUS TUF Gaming B850-PLUS
    Exact model shown
    Motherboard

    ASUS TUF Gaming B850-PLUS

    motherboard:asus-tuf-gaming-b850-plus · TUF GAMING B850-PLUS WIFI

    The AM5 DDR5 board avoids paying for an unrelated socket or memory standard.

    Confirm

    Confirm BIOS, M.2 layout, rear I/O and the exact features you need.

    Open specs and retailers →
  4. 04
    G.Skill Trident Z5 Neo RGB 32 GB DDR5-6000 CL30 EXPO — F5-6000J3038F16GX2-TZ5NR
    Exact model shown
    Memory

    G.Skill Trident Z5 Neo RGB 32 GB DDR5-6000 CL30 EXPO — F5-6000J3038F16GX2-TZ5NR

    ram:g-skill-trident-z5-neo-rgb-32-gb-ddr5-6000-cl30-expo-f5-6000j3038f16gx2-tz5nr · F5-6000J3038F16GX2-TZ5NR

    An exact two-DIMM EXPO kit avoids a generic memory label.

    Confirm

    Check QVL, cooler clearance and stable EXPO settings.

    Open specs and retailers →
  5. 05
    Samsung 990 PRO
    Exact model shown
    Storage

    Samsung 990 PRO

    nvme:samsung-990-pro · MZ-V9P2T0B/AM

    An exact 2 TB PCIe 4.0 x4 M.2 2280 SSD with published endurance and warranty anchors.

    Confirm

    Match MPN MZ-V9P2T0B/AM and provide motherboard M.2 cooling.

    Open specs and retailers →
  6. 06
    Corsair RM1000x
    Exact model shown
    Power supply

    Corsair RM1000x

    psu:corsair-rm1000x · CP-9020271-NA

    A 1000 W modular PSU class gives this high-end plan headroom above the 850 W builder tier.

    Confirm

    Confirm the exact revision, native GPU cable and partner-card recommendation before buying.

    Open specs and retailers →
  7. 07
    Corsair NAUTILUS 360 RS
    Exact model shown
    CPU cooling

    Corsair NAUTILUS 360 RS

    cooling:corsair-nautilus-360-rs · CW-9060093-WW

    A 360 mm AIO class follows AMD’s liquid-cooling recommendation for optimal CPU performance.

    Confirm

    Confirm socket kit and full radiator/fan clearance.

    Open specs and retailers →
  8. 08
    Corsair 5000D Airflow
    Exact model shown
    Case

    Corsair 5000D Airflow

    case:corsair-5000d-airflow · CC-9011210-WW

    An airflow-focused larger ATX chassis gives the GPU and 360 mm cooling a practical starting envelope.

    Confirm

    Validate exact GPU and radiator placement at the same time.

    Open specs and retailers →
Download the parts table (CSV) ↓

Full compatibility revalidation

CPU ↔ motherboard

Socket, CPU list, BIOS, chipset and relevant VRM power.

RAM ↔ CPU/board

DDR, DIMM, capacity, modules, official/OC speed; QVL recommended, never guaranteed.

GPU ↔ case

Length, height, thickness, slots, connector and radiator clearance.

Cooling

Socket, radiator, radiator/fan stack, location, RAM, M.2 and clearance.

PSU

Wattage, ATX version, native GPU cable, cable count and exact-GPU headroom.

NVMe

M.2 2280, generation, slot, lane sharing and heatsink.

LIVE CART TOTAL

Calculate today’s observed cart

Enter the delivered prices you can see. Nothing is stored and no retailer price is frozen on this page.

Entered subtotal$0.00Before tax; operating system, assembly, monitor and peripherals excluded. Shipping depends on the values you enter.

SAFE PURCHASE ORDER

Lock the platform, then dimensions

  1. 1

    Confirm CPU, socket, BIOS, motherboard and memory QVL together.

  2. 2

    Choose the exact GPU and record length, height, thickness and connector.

  3. 3

    Check case, radiator, motherboard, GPU and cable bend together.

  4. 4

    Compare delivered total, returns and seller before checkout.

Decision tools

PC BuilderLoad the configuration and catch baseline conflicts.Product comparisonCompare exact identities and verified fields.

Guides behind the tradeoffs

9850X3D vs 9800X3D →RTX 4080 Super vs RTX 5080 →PSU by GPU guide →

Compare all four builds

Balanced 1080p Gaming PC Build in Canada →Best 1440p Gaming PC Build in Canada →Local AI & Creator PC Build in Canada →

Frequently asked questions

Are all eight parts guaranteed compatible?

The documented plan is coherent, but BIOS, QVL, revision and exact GPU dimensions must be rechecked before checkout.

Are prices included?

No. The calculator accepts delivered prices observed on purchase day without storing or publishing them.

Can I choose another graphics card?

Yes, after checking length, thickness, connector, PSU and radiator clearance.

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