Quick Verdict
A 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.
Overview
Launch
2023
Status
ActiveGeneration
13th Gen Core i3 (Raptor Lake-U)
Market
Mainstream Laptop
The Intel Core i3-1315U is a 6-core (2P+4E), 8-thread mobile processor with UHD Graphics 64EU running at 15W TDP, designed for mainstream thin-and-light laptops balancing performance and battery life.
The Core i3-1315U features 2 Raptor Cove P-cores (up to 4.5 GHz) and 4 Gracemont E-cores (up to 3.3 GHz) for 6 cores and 8 threads.
With 10MB L3 cache, UHD Graphics 64EU, and support for DDR4, DDR5, LPDDR4X, and LPDDR5 memory, it serves as the workhorse for mainstream $400-$700 laptops.
Specifications
Performance
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.
8 threads allow for a lightweight VM alongside host tasks, but this is not a virtualization-focused processor.
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.
15W TDP with Intel's Dynamic Tuning Technology enables excellent battery life in well-designed laptops, typically 8-12 hours of light use.
- •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
- •No dedicated AI acceleration
- •2 P-cores provide limited CPU inference capability
- •Not suitable for AI/ML development or inference
Architecture
10nm (Intel 7)
Process Node
Raptor Lake-U
Codename
6C / 8T
Core Config
10 MB
L3 Cache
15 W
TDP
Architecture Overview
The i3-1315U implements Intel's hybrid architecture in its most compact mobile form. Two Raptor Cove P-cores handle performance-critical and single-threaded workloads while four Gracemont E-cores provide efficient parallel processing for background tasks, all within a 15W power envelope.
CPU Design
2 Raptor Cove P-cores with Hyper-Threading (4 threads) + 4 Gracemont E-cores without Hyper-Threading (4 threads) = 6 cores, 8 threads. P-cores boost to 4.5 GHz from a 1.2 GHz base; E-cores operate from 900 MHz base up to 3.3 GHz boost.
Memory Subsystem
Dual-channel memory controller supporting DDR4-3200, DDR5-5200, LPDDR4X-4267, and LPDDR5-5200. The choice of memory type significantly impacts both performance and power consumption—LPDDR5 offers the best combination for thin-and-light designs.
PCIe & I/O
8 PCIe Gen 4 lanes from the CPU (typically for one NVMe SSD) plus 12 PCIe Gen 3 lanes from the integrated PCH for peripherals like Wi-Fi, card readers, and additional storage.
Overclocking
Fully locked BGA part. All frequency and power management is controlled by Intel's Speed Shift Technology and Dynamic Tuning in conjunction with the laptop's firmware.
- Raptor Cove P-cores replace Golden Cove for better frequency headroom
- Higher P-core boost clock (4.5 GHz vs 4.4 GHz)
- Improved IPC from Raptor Cove microarchitecture
- Same 2P+4E configuration maintained
Key Highlights
- 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
- 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
History
The Core i3-1315U represents Intel's mainstream mobile strategy for the Raptor Lake generation: bring the hybrid P+E architecture to every price tier while carefully differentiating within the i3 lineup. Unlike the desktop i3 which retained an all-P-core design, the mobile i3 fully embraced hybrid computing from its 12th generation debut.</br></br>The 1315U's 2P+4E configuration is the 'standard' i3 mobile layout, continuing the pattern established by the i3-1215U.
What changed with Raptor Lake is the P-core microarchitecture—Raptor Cove replaced Golden Cove, bringing higher frequency potential and improved prefetching. The E-cores remained Gracemont, as Intel chose to save the newer Crestmont E-cores for the Meteor Lake generation.</br></br>In practice, the i3-1315U became one of the most ubiquitous laptop processors of 2023, found in everything from $350 Chromebook-style Windows laptops to $700 mainstream ultrabooks.
This broad deployment created an interesting market dynamic where two laptops at very different price points could share the same processor, with the difference coming from RAM, storage, display quality, and build materials rather than compute capability.
Improvements over Previous Generation
- Raptor Cove P-cores replace Golden Cove for better frequency headroom
- Higher P-core boost clock (4.5 GHz vs 4.4 GHz)
- Improved IPC from Raptor Cove microarchitecture
- Same 2P+4E configuration maintained
Alternatives & Competitors
Should You Buy It?
Recommended for the right buyer
Mainstream laptop purchase in the $400-$700 range for everyday computing, school, or office work where battery life and adequate performance are both important.
Avoid if…
- Gaming is a priority
- Running creative applications like Premiere Pro or Photoshop regularly
- Software development with large compilation workloads
- Future-proofing for heavier workloads
Use Cases
Interesting Facts
The i3-1315U has 6 cores and 8 threads, which is more cores but fewer threads than the desktop i3-13100's 4 cores and 8 threads.
The P-core base clock of 1.2 GHz seems very low, but Intel's Speed Shift Technology allows near-instant ramping to boost frequencies when needed.
The UHD Graphics 64EU (64 Execution Units) actually has more EUs than the desktop UHD 730 (24 EUs), though mobile graphics typically run at lower frequencies.
Despite being an i3, this chip uses the same hybrid P+E architecture as the top-tier mobile i9 parts, just with fewer cores enabled.
The $309 launch price is identical to the weaker i3-1305U, making it essential for buyers to check the exact model number.
LPDDR5-5200 support means this chip can utilize faster memory than the desktop i3-13100's DDR5-4800 limit.
The 55W PL2 turbo power is nearly 4x the 15W base TDP, allowing brief performance spikes when thermal headroom is available.
The i3-1315U is one of the most commonly found processors in mainstream 2023 laptops, appearing in models from HP, Dell, Lenovo, Acer, and Asus.
People Also Ask
Is the i3-1315U good for everyday use?
Yes, it handles web browsing, office applications, video conferencing, and media consumption well. It is designed exactly for these everyday workloads.
What is the difference between i3-1305U and i3-1315U?
The i3-1315U has 2 P-cores and 4 E-cores (6 cores, 8 threads) while the i3-1305U has only 1 P-core and 4 E-cores (5 cores, 6 threads). The 1315U is notably better for multitasking.
Can the i3-1315U play games?
Not modern AAA games. It can handle very light casual games and older titles at low settings, but it is not designed for gaming.
How much RAM should I get with an i3-1315U laptop?
At least 8GB for basic use, but 16GB is strongly recommended for comfortable multitasking and better long-term usability.
Is the i3-1315U better than the i5-1235U?
The i5-1235U has 2P+8E (10 cores, 12 threads) and will outperform the i3-1315U in multi-threaded tasks, but single-core performance is similar.
What is the battery life of an i3-1315U laptop?
Typically 8-12 hours of light use depending on battery capacity, display brightness, and laptop design. The 15W TDP enables good efficiency.
Does the i3-1315U support Wi-Fi 6E?
The CPU itself does not determine Wi-Fi capability. Wi-Fi 6E support depends on the wireless module installed by the laptop manufacturer.
Can the i3-1315U handle video editing?
Very basic video trimming and simple edits are possible, but anything beyond that will be slow and frustrating. A higher-end CPU is recommended for video editing.
What is the clock speed of the i3-1315U?
P-cores base at 1.2 GHz and boost up to 4.5 GHz. E-cores base at 900 MHz and boost up to 3.3 GHz.
Is the i3-1315U a good processor for students?
Yes, it handles all typical student workloads including web research, document writing, video calls, and streaming video efficiently.
Frequently Asked Questions
How many cores and threads does the i3-1315U have?
6 cores (2 P-cores + 4 E-cores) and 8 threads (P-cores have Hyper-Threading, E-cores do not).
What is the TDP of the i3-1315U?
15W base TDP with a PL2 turbo limit of 55W for short bursts.
What graphics does the i3-1315U have?
Intel UHD Graphics with 64 Execution Units, dynamic frequency up to 1250 MHz.
Does the i3-1315U support DDR5?
Yes, it supports DDR5-5200 and LPDDR5-5200 in addition to DDR4 and LPDDR4X.
Can I upgrade the CPU in my i3-1315U laptop?
No, it uses a BGA 1744 package that is soldered to the motherboard and cannot be upgraded.
What is the part number for the i3-1315U?
The MM number is SRMLV.
Does the i3-1315U support AV1 decoding?
Yes, the UHD Graphics 64EU includes hardware AV1 decode support for efficient 4K video playback.
Is the i3-1315U better than the i3-1215U?
Yes, the Raptor Cove P-cores offer improved IPC and slightly higher boost clocks compared to the 1215U's Golden Cove cores.
What PCIe version does the i3-1315U support?
PCIe 4.0 with 8 lanes from the CPU and PCIe 3.0 with 12 lanes from the PCH.
Can the i3-1315U run two external monitors?
Yes, the UHD 64EU typically supports up to three displays (internal plus two external), depending on the laptop's port configuration.