CPU Comparison
Intel Core 3 100U vs Intel Core i3-1315U
A side-by-side comparison of specs, performance and value. The Intel Core 3 100U is a 6-core entry-level mobile processor featuring a hybrid P-Core and E-Core design, built on Intel 7 process for thin-and-light laptops focused on everyday productivity.
The Bottom Line
Overview & Launch
Specifications Compared
Performance Compared
Productivity
Handles web browsing, document editing, spreadsheet work, and video conferencing without issues. More demanding productivity applications will show limitations.
Handles office applications, web browsing with multiple tabs, and light multitasking well. Heavier applications like large Excel files or multiple browser windows with rich content show some slowdown.
Gaming
The 64-EU UHD Graphics is not designed for modern gaming. Older or very lightweight titles at low resolutions may run, but anything recent will struggle significantly.
Not designed for gaming. UHD 64EU can handle older or very light games at low settings, but modern AAA titles are not playable at acceptable frame rates.
Virtualization
VT-x and VT-d are supported, enabling basic virtual machine use, but limited cores and memory bandwidth restrict practical utility.
8 threads allow for a lightweight VM alongside host tasks, but this is not a virtualization-focused processor.
Efficiency
The 15W base TDP with 55W PL2 makes this chip well-suited for thin-and-light laptops where battery longevity matters more than peak performance.
15W TDP with Intel's Dynamic Tuning Technology enables excellent battery life in well-designed laptops, typically 8-12 hours of light use.
Specialized Performance
AI / ML
- No dedicated NPU or AI acceleration hardware
- CPU-based inference is possible but impractically slow for meaningful AI workloads
- No dedicated AI acceleration
- 2 P-cores provide limited CPU inference capability
- Not suitable for AI/ML development or inference
Content Creation
Gaming
- 64-EU UHD Graphics lacks the compute power for modern game titles
- Suitable only for casual 2D games or very old 3D titles at low settings
- eGPU support depends on laptop Thunderbolt implementation, not guaranteed
- Not designed for gaming
- UHD 64EU can handle casual 2D games and very light 3D
- Minecraft and similar lightweight titles may run acceptably
- Any modern AAA game will be unplayable
Industry Impact
Best CPU by Use Case
Target Audience
Strengths & Weaknesses
Pros
- Hybrid architecture brings modern design to the budget segment
- Low 15W TDP enables excellent battery life in thin laptops
- Supports both DDR4 and DDR5 memory for OEM flexibility
- P-Cores boost to a competitive 4.7 GHz
- UHD Graphics 64EU handles 4K output and hardware video decoding
- VT-x and VT-d virtualization support included
- Significant upgrade over Pentium and Celeron alternatives
Cons
- Only 2 P-Cores limit single-threaded intensive workloads
- 64-EU iGPU is insufficient for any meaningful gaming
- Only 8 PCIe 4.0 lanes restrict storage expansion
- BGA socket means the CPU is permanently soldered and non-upgradeable
- No ECC memory support
- 10MB L3 cache is modest for a 6-core chip
- No Hyper-Threading on E-Cores caps thread count at 8
Pros
- 2 P-cores provide responsive single-threaded performance
- 4 E-cores handle background tasks efficiently
- 15W TDP enables excellent battery life
- UHD 64EU with hardware AV1 decoding
- Broad memory type support for OEM flexibility
- Significant improvement over 12th gen i3-1215U in single-threaded tasks
Cons
- Only 8 threads limit heavy multitasking
- 15W base power constrains sustained performance
- No dedicated GPU means gaming is not viable
- E-cores lack Hyper-Threading
- BGA package means no upgrade path
- 10MB L3 cache is shared across all 6 cores
Competitors & Alternatives
Intel Core 3 100U
- AMD Ryzen 3 7320URival
Budget Mobile
- AMD Ryzen 3 7330URival
Budget Mobile
- Compare head-to-headIntel Core i3-1215URival
Budget Mobile
- AMD Athlon Gold 7220URival
Entry Mobile
- MediaTek Kompanio 800TRival
Budget Mobile ARM
Offers more P-Cores and better multi-threaded performance for a modest price increase.
Compare head-to-head- AMD Ryzen 5 7520UAlt
Provides stronger multi-core performance and RDNA 2 integrated graphics.
Previous-generation Raptor Lake with a similar hybrid layout but established platform availability.
Compare head-to-headOlder but offers 2 additional E-Cores and higher overall performance.
Compare head-to-head
Intel Core i3-1315U
- AMD Ryzen 3 7320URival
Mainstream Mobile
- AMD Ryzen 5 7520URival
Mainstream Mobile
- AMD Ryzen 5 7530URival
Mainstream Mobile
- Apple M2 (base)Rival
Premium Mobile
- Compare head-to-headIntel Core i5-1235URival
Previous Gen Mid-Range
- Intel Core i5-1335UAlt
2P+8E with 12 threads provides significantly better multitasking if the budget allows.
Previous generation with same core count may offer better value if found at a lower price.
Compare head-to-head- Apple M2 (base MacBook Air)Alt
Dramatically better performance and battery life at a higher price point.
Our Verdict on Each
A competent entry-level mobile chip that brings Intel's hybrid architecture to budget laptops, offering a clear step up from older Pentium and Celeron parts for everyday tasks, though it is not suited for gaming or heavy workloads.
Best for: Purchasing a budget laptop under $500 for school, office work, or home use where battery life and basic responsiveness are the priorities
Read the full reviewA competent mainstream mobile chip that improves on the previous generation with Raptor Cove P-cores. The 2P+4E configuration provides adequate multitasking for everyday use, though heavy workloads will still expose its limitations.
Best for: Mainstream laptop purchase in the $400-$700 range for everyday computing, school, or office work where battery life and adequate performance are both important.
Read the full reviewFrequently Asked Questions
Which is better, Intel Core 3 100U or Intel Core i3-1315U?
Based on our editorial ratings, the Intel Core i3-1315U comes out ahead with a score of 6.5/10. That said, the best choice depends on your workload — check the spec and performance breakdown above for gaming, productivity and efficiency differences.
Which is faster for gaming, Intel Core 3 100U or Intel Core i3-1315U?
For gaming, the Intel Core 3 100U leads with a gaming performance score of 0/100 among Intel Core 3 100U and Intel Core i3-1315U.
Do Intel Core 3 100U and Intel Core i3-1315U use the same socket?
Yes — all of these CPUs use the BGA 1744 socket, so they share compatible motherboards.
Which is faster in multi-core benchmarks?
The Intel Core 3 100U posts the highest multi-core benchmark score. Multi-core results: Intel Core 3 100U (0). Benchmark figures are approximate and workload-dependent.