Intel Core Ultra 7 265K LGA1851 20-Core 3.9GHz–5.5GHz Processor
Intel
Intel Core Ultra 7 265K LGA1851 20-Core 3.9GHz–5.5GHz Processor
The Intel Core Ultra 7 265K is a desktop processor for gamers and content creators who demand high performance across both intensive workloads and everyday tasks. It pairs 8 high-speed Performance-cores with 12 Efficient-cores for intelligent task handling, plus integrated AI acceleration and PCIe 5.0 support for next-generation devices.
Why this product
20 cores with dual-core architecture
8 Performance-cores reach 5.5 GHz for games and demanding apps, while 12 Efficient-cores handle background tasks. Intel Thread Director assigns each workload to the right core type automatically.
Integrated AI accelerator
13 TOPS NPU built into the processor handles AI inference without a separate GPU, speeding up matrix operations for neural networks and AI applications.
Unlocked for overclocking
Adjust clock speeds and voltages with Intel eXtreme Tuning Utility. DDR5 XMP profiles let you tune memory timings too.
PCIe 5.0 and DDR5 ready
Supports the latest high-speed interfaces: up to 24 PCIe lanes combined and DDR5 memory at 6400 MT/s for maximum bandwidth.
Integrated Arc Xe2 graphics
64 execution units provide basic display output and light gaming without a dedicated GPU, though demanding games and creative work benefit from discrete graphics.
- Cores / Threads20 cores (8P+12E) / 20 threads
- P-Core Frequency3.9 GHz base, 5.5 GHz boost
- E-Core Frequency3.3 GHz base, 4.6 GHz boost
- Cache30 MB L3 + 36 MB L2
- TDP125W base / 250W max
- SocketLGA 1851
- Unlocked for OCYes
- SKUINT-1816
- EAN5032037282062
- Intel 800 Series Chipset motherboards with LGA 1851 socket.
- DDR5 memory modules up to 192 GB capacity at DDR5-6400 MT/s.
- PCIe 5.0 and PCIe 4.0 devices benefit from up to 24 combined lanes of bandwidth.
- Supports Thunderbolt 4, USB 4.0, and WiFi 7 through compatible motherboard implementations.
- Thermal solution not included — you must purchase a separate CPU cooler compatible with LGA 1851.
Best for
- Gaming at high settings with high refresh rates, leveraging 8 fast P-cores and efficient core scheduling.
- Content creation and streaming — P-cores handle encoding while E-cores manage background tasks without performance dips.
- AI and machine learning inference using the integrated 13 TOPS NPU.
- Overclocking enthusiasts who want tuning control over cores, memory, and power limits.
- Systems requiring low-power efficiency — E-cores reduce power draw when tasks don't demand P-core speed.
Trade-offs
- Users on a tight budget seeking budget-tier performance — this is a flagship processor with a premium price.
- Office and web browsing only — the performance and power investment are unnecessary for light workloads.
- Pre-built systems with locked BIOS — the unlocked multipliers provide no benefit if overclocking is disabled by the motherboard manufacturer.
- Users without a discrete GPU who demand heavy 3D gaming — integrated graphics handle esports titles and older games, not demanding modern AAA titles.
Intel® Core™ Ultra desktop processors (series 2) are the ultimate desktop and entry workstation platform, engineered to unlock new levels of intelligent performance for the most demanding daily tasks. These processors are desktop powerhouses, featuring up to 24 cores with new P-core and E-core architecture, along with new overclocking features and performance technologies.
The Intel Core Ultra 7 265K features 20 cores (8 Performance-cores and 12 Efficient-cores) and 20 threads. The P-cores operate at a base frequency of 3.9 GHz and can boost up to 5.5 GHz. The 12 E-cores have a base frequency of 3.3 GHz and boost up to 4.6 GHz. The processor includes 30 MB of L3 cache and 36 MB of L2 cache.
Featuring PCIe 5.0 & 4.0 support and DDR5 support, unlocked Intel Core Ultra 7 desktop processors (series 2) are optimized for gamers and productivity and help deliver high performance. Compatible with Intel 800 Series Chipset based motherboards. 125W Processor Base Power.
The Core Ultra 7 265K also supports PCI Express 5.0 and up to 192GB of dual-channel DDR5 memory at 6400 MHz. The Core Ultra 7 265K features integrated Intel Graphics. Please note that a thermal solution is NOT included.
Intel® eXtreme Memory Profile features DDR5 memory overclocking, while Intel® eXtreme Tuning Utility brings realtime CPU tuning, memory tuning, and performance monitoring. Neural nets are the new apps, and the AI accelerators in Intel® Core™ Ultra processors are designed to efficiently speed up the matrix multiplications at the heart of these neural networks.
An integrated NPU can handle up to 13 trillion operations per second (TOPs), providing accelerated performance for AI applications and features. This processor supports PCIe 4.0 and PCIe 5.0 technologies, providing a combined total of 24 lanes for exceptional data throughput with compatible devices.
The Intel Thread Director is built into the CPU's cores, working with the operating system to ensure each of the 20 threads are assigned to the right core at the right time. Performance-cores provide the speed to handle high-end games and demanding applications while low-priority and background tasks such as streaming video, playing music, and encoding media are handled by the processor's Efficient-cores.
General
| Brand | Intel |
|---|---|
| Product Name | Core Ultra 7 Processor 265K |
| Processor Family | Intel Core Ultra 7 (Series 2) — Arrow Lake |
| Part Number | BX80768265K |
Core Architecture
| Total Cores | 20 (8 Performance + 12 Efficient) |
|---|---|
| Total Threads | 20 |
| P-Core Base Frequency | 3.9 GHz |
| P-Core Max Turbo | 5.5 GHz |
| E-Core Base Frequency | 3.3 GHz |
| E-Core Max Turbo | 4.6 GHz |
| Overclocking | Unlocked |
Memory & Cache
| L3 Cache | 30 MB |
|---|---|
| L2 Cache | 36 MB |
| Memory Type | DDR5 |
| Max Memory Capacity | 192 GB |
| Max Memory Speed | DDR5-6400 MT/s |
| Memory Channels | Dual-channel |
| ECC Support | Yes |
Power & I/O
| Processor Base Power (TDP) | 125W |
|---|---|
| Maximum Turbo Power | 250W |
| Socket | LGA 1851 |
| Compatible Chipset | Intel 800 Series |
| PCIe Lanes | Up to 24 combined (PCIe 5.0 & 4.0) |
| Integrated Graphics | Intel Arc Xe2 Graphics (64EU) |
| NPU | Up to 13 TOPS |
| Connectivity | Thunderbolt 4, USB 4.0, WiFi 7 |
| 64-bit Support | Yes |
| Thermal Solution | Not included |
| Warranty | 3 Years |
Shipping
All our products are shipped from the United Kingdom within 24 to 48 hours of purchase. See our Shipping and Returns page for full details.
Returns
- Tech Syndicate offers a full money-back guarantee on all purchases made in our store. If you are not satisfied with your purchase, we will provide a full refund, no questions asked.
- Refunds are available within 45 days of delivery.
- After the 45-day period you are no longer eligible for a refund, so we encourage you to try the product within the first few weeks to make sure it fits your needs.