Intel Core Ultra 5 245K
Expert rating7.9 / 10
- iGPU:
- Intel Graphics
- Boost/Base Clock:
- 5.2 GHz / 4.2 GHz
- Core/Thread Count:
- 14 Core (6P+8E) / 14 Thread
- Cache:
- 24MB L3 + 26MB L2
- TDP:
- 125 W
- CPU Process Node:
- TSMC N3B (Compute Tile)
- CPU Socket:
- FCLGA1851
- CPU Series:
- Arrow Lake, Core Ultra 200 Series
- Memory Support:
- DDR5-6400
- Form Factor:
- Desktop
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Manufacturer: Intel Last updated: 2026-10-10
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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.
Measured results
Cinebench scores
| Cinebench 2024, Single-Core Median of 2 independently published results. | 136 135 to 137 |
| Cinebench R23, Multi-Core Median of 2 independently published results. | 25,127 25,066 to 25,188 |
| Cinebench R23, Single-Core Median of 2 independently published results. | 2,154 2,132 to 2,175 |
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.
Our verdict
Reviewed by Burooj Alam. Rated by us, not by users.
Expert rating7.9 / 10
The Intel Core Ultra 5 245K is an efficient midrange desktop chip for everyday work, though rivals match it in games for less.
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
Specifications
What these specs meanIdentity
| Brand | Intel |
|---|---|
| Product Line | Core Ultra 5 |
| Model Number | 245K |
| Codename | Arrow Lake-S |
| Release Year | 2024 |
Segment and platform
| Market Segment | Desktop |
|---|---|
| Microarchitecture | Arrow Lake, Core Ultra 200 Series |
| Socket | FCLGA1851 |
| Socket Status | Current |
| 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 |
|---|---|
| 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 |
|---|---|
| TDP | 125 W |
| iGPU | Intel Graphics |
FAQs
What are the key specifications of the Intel Core Ultra 5 245K?
The Intel Core Ultra 5 245K has 14 cores and 14 threads, a 4.2 GHz base and 5.2 GHz boost clock, 24 MB of L3 cache and a 125 W TDP. Integrated graphics: Intel Graphics. Socket: FCLGA1851.
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?
Best suited to: 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?
Not the best 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.