Intel Core i7-9800X Processor

The Intel Core i7-9800X Processor — 8 cores and 16 threads, 3.8 GHz base rising to 4.4 GHz with Turbo Boost, 16.5 MB Intel Smart Cache, 165 W processor base power, LGA2066. Supplied from stock with a 1-year warranty.

Eight Skylake-X cores with AVX-512

The i7-9800X is the eight-core Core X part of the Skylake-X range: eight cores with Hyper-Threading — sixteen threads — at 3.80 GHz with a 4.40 GHz Turbo, 16.5 MB of cache, a 165 W envelope and an unlocked multiplier, launched Q4 2018 on the LGA2066 socket with X299 boards.

Skylake-X brings AVX-512, quad-channel DDR4-2666 memory (85 GB/s) and 44 lanes of PCI Express 3.0 from the CPU — the full HEDT feature set at the eight-core price point. Like all Core X parts there is no integrated graphics; a discrete card is required.

Technical specifications

Instruction set extensions: Intel SSE4.1, SSE4.2, AVX and AVX2, plus AVX-512 with two 512-bit FMA units. Security and virtualisation: AES-NI, Intel VT-x with EPT and VT-d.

Which systems take this processor

Anything on the LGA2066 socket with an Intel X299 chipset. This is the HEDT (high-end desktop) platform: quad-channel memory, far more PCIe lanes and physically larger boards than the mainstream LGA1151 line.

• Workstations and compute boxes — ASUS Prime X299 / Pro X299, MSI X299 RAIDER, Gigabyte X299 AORUS. Four memory channels and 16 lanes of PCIe 3.0 from the CPU suit NVMe arrays and GPU compute.
• Upgrade path — an X299 board also accepts 6th to 10th Generation Core X processors up to 18 cores, so a build started with this part can be scaled up later without changing the platform.

One caveat: LGA2066 boards and coolers are not interchangeable with LGA1151 — the socket, the cooler mounting and the memory layout are all different. Make sure your chassis supports an ATX or E-ATX board before ordering. Tell us the board model when you enquire and we will confirm.

How it compares across the i7 line

Against the Broadwell-E 6900K it trades architecture and bandwidth: higher clocks, AVX-512 and double the memory bandwidth on the newer LGA2066 platform. X299 boards also accept higher-core Skylake-X Cascade Lake-X parts for later upgrades.

How each processor is tested before it ships

1. Visual inspection of the integrated heat spreader, substrate and contact pads; the sSpec laser marking (SREZ9 on our i7-9800X stock) is verified against the Intel specification sheet.
2. Burn-in on a matched diagnostic board with four matched memory modules (all four channels must be populated to reach the rated bandwidth).
3. All populated memory channels and the primary PCIe lanes are validated, then the processor is identified in the BIOS and in the operating system.
4. A sustained multi-threaded load test at full core count, with the clock and thermal readings recorded.
5. Thermal paste cleaned off, final inspection, then packaging in an anti-static tray with foam — which is how it arrives to you.

Warranty and lead time

Every processor is covered by a 1-year warranty against defects in workmanship and function. If a part fails within the period we replace it or refund it, and we cover return shipping on a verified fault. Stock is held in our own warehouse and normally dispatches within three to seven working days; tracking is issued at dispatch.

Purchasing and volume enquiries

The minimum order quantity for this processor is 2 units. Price is quotation-based rather than listed, because CPU pricing moves with each incoming batch — send us the quantity you need and we will come back with a firm quote and the current lead time. Larger quantities ship from the same production batch so the sSpec and the stepping stay consistent across your order.