Intel Core i3-1305U socket: BGA 1744
The Intel Core i3-1305U uses BGA 1744, a soldered BGA for Raptor Lake mobile processors with DDR4, DDR5 or LPDDR5 memory. The 5-core chip at 15 W with UHD graphics cannot be replaced.
- Socket
- BGA 1744
- Launched
- January 4, 2023
- Cores and threads
- 5 and 6
- Base power
- 15 W
- Codename
- Raptor Lake-U
- Segment
- Mobile (soldered)
- Family
- Intel Core i3
- Clocks
- 1.6 / 4.5 GHz
Intel Core i3-1305U specifications
| Cores | 5 (1 Performance-core plus 4 Efficient-cores) |
|---|---|
| Threads | 6 |
| Core architecture | Raptor Cove P-core with Gracemont E-cores (Raptor Lake-U) |
| P-core clocks | 1.6 GHz base, up to 4.5 GHz turbo |
| E-core clocks | 1.2 GHz base, up to 3.3 GHz turbo |
| Cache | 10 MB Intel Smart Cache (L3) |
| Processor base power (TDP) | 15 W |
| Maximum turbo power | 55 W |
| Manufacturing process | Intel 7 |
| Memory support | DDR4-3200, LPDDR4x-4267, DDR5-5200, LPDDR5-5200 or LPDDR5x-5200, dual channel |
| PCI Express | PCIe Gen4 lanes from the CPU |
| Integrated graphics | Intel UHD Graphics, 64 execution units, up to 1.25 GHz |
| Multiplier | Locked |
| Package | BGA 1744 soldered |
| Cooler in the box | None (laptop cooling) |
Motherboard compatibility
Intel Core i3-1305U needs a motherboard with a BGA 1744 socket. Chipset by chipset data for this codename is not recorded yet. See the BGA 1744 chipset list and the board maker's CPU support list.
BGA 1744 at a glance
| Type | BGA, 1,744 contacts |
|---|---|
| Package size | 50 × 25 mm |
| Introduced | December 2024 |
| Memory | DDR4-3200 and DDR5-5200 to DDR5-6400 SODIMM or soldered LPDDR4X-4267 and LPDDR5X-5200 to LPDDR5X-6400, two channels, up to 96 GB |
| Cooler mounting holes | Not applicable (soldered) |
What the Core i3-1305U is
The Core i3-1305U is the 5-core entry of Raptor Lake-U i3 for thin laptops from January 4, 2023. One Raptor Cove Performance-core with hyperthreading plus 4 Gracemont Efficient-cores give 5 cores and 6 threads, with the P-core at 1.6 GHz base and up to 4.5 GHz turbo. The package carries 10 MB of Smart Cache. Base power is 15 W with 55 W turbo for thin bodies on entry budgets.
UHD Graphics with 64 execution units to 1.25 GHz cover everyday display and streaming. Broad memory support from DDR4-3200 to LPDDR5x-5200 lets makers tune price against bandwidth. The single P-core burst covers interactive threads while E-cores handle background services.
Entry thin buyers land here for the lowest i3 U price with responsive bursts. Five cores suit browsing, docs and calls at 15 W, while 1315U adds a second P-core for heavier multitasking. Boards that support Raptor Lake-U cover the family with the same firmware. The How to find your CPU socket type guide helps confirm BGA 1744 fit.
Socket and motherboard compatibility
The 1305U solders to BGA 1744 on thin laptop boards with no socketed path. Board makers set memory type and power limits. BGA 1744 does not cross to LGA 1700 desktop boards. Maker pages list the BGA package as the fit reference.
Platform IO comes from the SoC plus board wiring, with NVMe, wireless and display outputs from the design. Factory firmware carries Raptor Lake-U support.
Memory, PCIe and cooling
DDR4-3200 through LPDDR5x-5200 options in two channels feed CPU and UHD graphics together. Soldered LPDDR5 suits thin bodies, while SODIMM suits serviceable fleets. Dual channel doubles graphics bandwidth.
PCIe Gen4 lanes wire NVMe plus wireless controllers. Cooling is a single pipe and blower for 15 W with short 55 W bursts.
Upgrade paths
No CPU change is possible on soldered BGA 1744. SODIMM and NVMe swaps move where slots exist, while soldered memory stays fixed.
Within Raptor Lake-U on BGA 1744 the step up is the 1315U with a second P-core. Outside thin power, P parts on BGA 1744 add threads with stronger cooling.
Frequently asked questions
What socket does the Core i3-1305U use?
BGA 1744 as a soldered BGA for Raptor Lake mobile processors. It cannot be removed or upgraded.
How many cores does the 1305U have?
5 cores and 6 threads: 1 P-core plus 4 E-cores, at 1.6 GHz P-base and up to 4.5 GHz turbo with a 15 W TDP.
What graphics does the 1305U include?
Intel UHD Graphics with 64 execution units to 1.25 GHz.
How is 1305U different from 1315U?
One P-core against two, with the same 10 MB cache and 15 W envelope for entry thin bodies.
Sources and verification
- Intel Core i3-1305U specifications (Intel ARK)
- Intel Core i3-1305U benchmarks and specs (Notebookcheck)
Facts last checked against these sources on . Page last edited on .