Intel Core i5-1245U
Expert rating7.7 / 10
- Brand:
- Intel
- Form Factor:
- Laptop
- CPU Socket:
- BGA 1744
- Core/Thread Count:
- 10C/12T
- TDP:
- 15W
- iGPU:
- Intel Iris Xe Graphics
- CPU Series:
- Core i5
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Manufacturer: Intel Last updated: 2026-09-12
Intel Core i5-1245U Review
Intel Core i5-1245U 10-core 12-thread laptop (ultra-low power) processor, 1.6GHz base / 4.4GHz boost, 15W TDP, Alder Lake, BGA 1744 socket
The Intel Core i5-1245U is an ultra-low-power mobile chip for thin-and-light and business laptops prioritizing battery life. It pairs 10 cores and 12 threads with a 1.6GHz base clock that boosts up to 4.4GHz and Intel Iris Xe Graphics graphics, all within a 15W envelope.
Performance and Architecture
With 10 cores and 12 threads, the Intel Core i5-1245U runs a 1.6GHz base clock that boosts up to 4.4GHz, backed by 12MB of L3 cache and Intel Iris Xe Graphics graphics on the Alder Lake architecture.
Platform and Deployment
The Intel Core i5-1245U uses the BGA 1744 platform in a 15W envelope, positioned as an ultra-low-power mobile chip for thin-and-light and business laptops prioritizing battery life.
Comparison to Alternatives
Within the Core i5 lineup in this catalog, the Intel Core i5-1245U sits at the 10-core tier, differentiated mainly by clock speed, TDP, and socket from its closest siblings. Against AMD's Ryzen Mobile and Ryzen AI Mobile processors in this catalog at a similar tier, the Intel Core i5-1245U competes on platform ecosystem and per-core efficiency, while against Intel's own Core Ultra mobile parts in this catalog it occupies a narrower, more specialized deployment niche.
Specifications
Identity
| Brand | Intel |
|---|---|
| Product Line | Core |
| Model Number | i5-1245U |
| Codename | Alder Lake |
| Release Year | 2022 |
Segment and platform
| Market Segment | Laptop |
|---|---|
| Microarchitecture | Alder Lake |
| Socket | BGA 1744 |
| Socket Status | Mature |
| Process Node | 10 nm |
Core configuration
| Total Cores | 10 |
|---|---|
| Performance Cores | 2 |
| Efficiency Cores | 8 |
| Total Threads | 12 |
| SMT Enabled | Yes |
Clock speeds
| P-Core Base Clock | 1.6 GHz |
|---|---|
| P-Core Boost Clock | 4.4 GHz |
| E-Core Base Clock | 1.2 GHz |
| E-Core Boost Clock | 3.3 GHz |
Cache
| L3 Cache | 12 MB |
|---|
Power and thermal
| Base Power | 15 W |
|---|---|
| Max Turbo Power | 55 W |
| Configurable TDP Floor | 9 W |
Memory
| Memory Type | DDR5 or DDR4 |
|---|---|
| Max Memory Speed | 4800 MT/s |
| Memory Channels | 2 |
| Max Memory Capacity | 64 GB |
| ECC Support | Yes |
Graphics and AI
| Integrated Graphics | Yes |
|---|---|
| iGPU Model | Intel Iris Xe Graphics |
| iGPU Compute Units | 80 |
Expansion
| PCIe Generation | PCIe 4.0 |
|---|---|
| PCIe Lanes | 10 |
Commercial
| Retail Availability | Soldered Only |
|---|
| Form Factor | Laptop |
|---|---|
| TDP | 15 W |
| iGPU | Intel Iris Xe Graphics |
Expert Review
Reviewed by Burooj Alam. Rated by us, not by users.
Expert rating7.7 / 10
The Intel Core i5-1245U prioritizes battery life and portability, fitting thin business and everyday laptops.
Best for
- Ultra-thin laptops
- Business laptops
- All-day battery life
Not for
- Gaming laptops
- Heavy sustained workloads
- Content creation
FAQs
What are the key specifications of the Intel Core i5-1245U?
The Intel Core i5-1245U is a processor from Intel. Key specs: Cores 10, Threads 12, Base Clock 1.6 GHz, Boost Clock 4.4 GHz, L3 Cache 12.
Will the Intel Core i5-1245U work with my current setup?
The Intel Core i5-1245U lists Socket is BGA 1744. 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 i5-1245U best suited to?
It suits ultra-thin laptops, business laptops, all-day battery life.
What are the drawbacks of the Intel Core i5-1245U?
It is a poor fit for gaming laptops, heavy sustained workloads, content creation.