Intel Core Ultra 5 245K
- iGPU:
- Intel Arc Graphics (4 Xe Cores)
- Boost/Base Clock:
- 5.2 GHz / 4.2 GHz
- Core/Thread Count:
- 14 Core (6P+8E) / 14 Thread
- Cache:
- 24MB L3 + 26MB L2
- TDP:
- 125W Base / 159W Max Turbo
- CPU Process Node:
- TSMC N3B (Compute Tile)
- CPU Socket:
- LGA 1851
- CPU Series:
- Arrow Lake
- Memory Support:
- DDR5-6400
- Form Factor:
- Desktop
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Manufacturer: Intel Last updated: September 9, 2026
Intel Core Ultra 5 245K Review
The Intel Core Ultra 5 245K is the most accessible Arrow Lake desktop chip, a 14-core (6 Performance + 8 Efficient) processor without hyperthreading, with P-cores boosting to 5.2 GHz within a genuinely efficient 125W base / 159W max turbo power envelope on the LGA 1851 socket.
Positioned as the direct successor to the i5-14600K, this chip retains the same 6P+8E core layout but drops hyperthreading, trading raw thread count for a considerably lower 159W max turbo power versus the 14600K's 181W.
Intel Arc Graphics (4 Xe Cores)
A modest 4-core Arc-based integrated GPU boosting to around 1.9 GHz; gaming desktop builds around this chip typically pair it with a discrete GPU.
How Is the Core Ultra 5 245K in Terms of Performance
The 14-core hybrid layout without hyperthreading gives this chip genuinely competitive gaming performance versus its i5-14600K predecessor, with a real efficiency advantage from the lower max turbo power despite a slight drop in P-core boost clock.
Benchmarks
Independent testing shows this chip performing closely to the outgoing i5-14600K, with E-core clocks up roughly 15% over the previous generation offsetting the lost hyperthreading, at a meaningfully lower power draw.
Specifications
Identity
| Brand | Intel |
|---|---|
| Product Line | Core Ultra 5 |
| Model Number | 245K |
| Codename | Arrow Lake-S |
Segment and platform
| Market Segment | Desktop |
|---|---|
| Microarchitecture | Arrow Lake, Core Ultra 200 Series |
| Socket | LGA 1851 |
| Socket Status | Current |
| Process Node | 3 nm |
| Process Node | 3 nm |
Core configuration
| Total Cores | 14 |
|---|---|
| Performance Cores | 6 |
| Efficiency Cores | 8 |
| Total Threads | 14 |
| SMT Enabled | No |
Clock speeds
| P-Core Base Clock | 4.2 GHz |
|---|---|
| P-Core Boost Clock | 5.2 GHz |
| E-Core Base Clock | 3.6 GHz |
| E-Core Boost Clock | 4.6 GHz |
| Unlocked Multiplier | Yes |
Cache
| L2 Cache | 26 MB |
|---|---|
| L3 Cache | 24 MB |
| 3D Stacked Cache | No |
Power and thermal
| Base Power | 125 W |
|---|---|
| Max Turbo Power | 159 W |
Memory
| Memory Type | DDR5-6400 |
|---|---|
| Memory Type | DDR5 |
| Max Memory Speed | 6400 MT/s |
| Memory Channels | 2 |
| Max Memory Capacity | 256 GB |
| ECC Support | Yes |
Graphics and AI
| Integrated Graphics | Yes |
|---|---|
| iGPU Model | Intel Graphics |
| iGPU Compute Units | 4 |
| NPU Peak TOPS | 13 TOPS |
| Copilot Plus Certified | No |
Expansion
| PCIe Generation | PCIe 5.0 |
|---|---|
| PCIe Lanes | 24 |
Commercial
| Launch MSRP | 309 USD |
|---|---|
| Retail Availability | Boxed Retail |
| Form Factor | Desktop |
|---|---|
| Core/Thread Count | 14 Core (6P+8E) / 14 Thread |
| TDP | 125W Base / 159W Max Turbo |
| iGPU | Intel Arc Graphics (4 Xe Cores) |
| Cache | 24MB L3 + 26MB L2 |
| Boost/Base Clock | 5.2 GHz / 4.2 GHz |
Expert Review
Reviewed by Burooj Alam. Rated by us, not by users.
Best for
- Buyers wanting an accessible entry point into Intel's newest Arrow Lake platform with genuine efficiency gains over 14th Gen
Not for
- Buyers upgrading from an existing LGA 1700 system without other reasons to switch — the platform change requires a new motherboard and likely new memory
FAQs
What are the key specifications of the Intel Core Ultra 5 245K?
The Intel Core Ultra 5 245K is a processor from Intel. Key specs: iGPU Intel Arc Graphics (4 Xe Cores), Boost/Base Clock 5.2 GHz / 4.2 GHz, Core/Thread Count 14 Core (6P+8E) / 14 Thread, Cache 24MB L3 + 26MB L2, TDP 125W Base / 159W Max Turbo.
Will the Intel Core Ultra 5 245K work with my current setup?
The Intel Core Ultra 5 245K lists CPU Socket is LGA 1851. Check that against the hardware you already own before buying, since this is the field that most often decides whether a part fits.
Who is the Intel Core Ultra 5 245K best suited to?
It suits buyers wanting an accessible entry point into intel's newest arrow lake platform with genuine efficiency gains over 14th gen.
What are the drawbacks of the Intel Core Ultra 5 245K?
It is a poor fit for buyers upgrading from an existing lga 1700 system without other reasons to switch — the platform change requires a new motherboard and likely new memory.