PC parts / CPUs
IntelLaptop CPU
Core Ultra 7 355
Released January 2026.3Maker spec sheet (PDF)download.intel.com/newsroom/2026/CES2026/Intel-CES2026-Core-Ultra-Series-3-Press-Deck.pdfRead 15 October 2026ARK Launch Date Q1'26. Intel's release says systems were available globally from 27 January 2026. Laptop shipping dates for systems with this exact chip were not checked. Last checked 15 October 2026.
- Cores
- 8
- Max boost clock
- 4.7GHz
- L3 cache
- 12MB
- Socket or package
- BGA2540
43 of 74 fields known.
At a glance
Max turbo power
Lower than 92% of other CPUs. Lower is better.
Base power (TDP)
Lower than 87% of other CPUs. Lower is better.
Max memory speed (official, any module type)
7,467MT/s
Higher than 78% of other CPUs.
General
- Model numbers
- QQ807293B9B40EF, QQ807293B9B458D2Maker product pageintel.com/content/www/us/en/products/sku/245722/intel-core-ultra-7-processor-355-12m-cache-up-to-4-70-ghz/ordering.htmlRead 15 October 2026Ordering codes QQ807293B9B40EF (spec code Q9EX) and QQ807293B9B458D (spec code SA4RF), both Tray, stepping A1, package FCBGA20X. ARK lists no boxed product.
- GTIN / EAN
- Not available
- Announced
- 5 January 20263Maker spec sheet (PDF)download.intel.com/newsroom/2026/CES2026/Intel-CES2026-Core-Ultra-Series-3-Press-Deck.pdfRead 15 October 2026Intel's CES 2026 Core Ultra Series 3 press deck, page 21, SKU table: the Core Ultra 7 355 is one of the 14 launch SKUs, with 8 cores and threads, 4.7 GHz P-core max turbo, 12 MB cache, 49 NPU TOPS, 4 Xe-cores, 2.5 GHz GPU, 25 W base power and 55 W maximum turbo power. The deck says pre-orders start on 6 January. Intel's release of 5 January 2026 introduces the Series 3 family.4Press releaseintel.com/content/www/us/en/newsroom/news/artificial-intelligence/ces-2026-intel-core-ultra-series-3-debut-first-built-on-intel-18a.htmlRead 15 October 2026Intel release dated 5 January 2026 (CES): Intel unveiled the Intel Core Ultra Series 3 processors. It names the X9 388H and does not name the 355.
- Predecessor
- Not available
- Successor
- Not available
- Launch price (US)
- Not available
- Launch price (EU)
- Not available
- Markets
- Not available
- Colours
- Not available
Cores and clocks
- Core configuration
Core type Count Core Base clock (GHz) Max clock (GHz) Performance 4 Cougar Cove 2.3 4.7 Low-power efficiency 4 Darkmont 1.7 3.5 Source1Maker product pageintel.com/content/www/us/en/products/sku/245722/intel-core-ultra-7-processor-355-12m-cache-up-to-4-70-ghz/specifications.htmlRead 15 October 2026# of Performance-cores 4 with base 2.3 GHz and Max Turbo 4.7 GHz. # of Efficient-cores 0. # of Low Power Efficient-cores 4 with base 1.7 GHz and Max Turbo 3.5 GHz. Total cores 8. ARK also prints an Efficient-core Base Frequency of 1.7 GHz, which has no cores behind it and is not stored. ARK does not name the core architectures. Cougar Cove and Darkmont come from the Chips and Cheese and Igor's Lab Panther Lake articles.5Press articleold.chipsandcheese.com/2025/10/14/panther-lakes-reveal-at-itt-2025Read 15 October 2026Chips and Cheese, 14 October 2025: the smallest Panther Lake configuration has 4 P-cores and 4 LP E-cores, the layout ARK lists for the 355. The P-cores are codenamed Cougar Cove and the E-core Darkmont.6Press articleigorslab.de/en/evolution-or-revolution-intel-panther-lake-including-architecture-efficiency-and-software-integrationRead 15 October 2026Igor's Lab names the compute tile cores as four Cougar Cove-P, eight Darkmont-E and four Darkmont-LP-E cores. The LP E-core row stores Darkmont from this source.- Cores
- 8
- Cores labelled performance
- 4
- Cores labelled efficiency
- 4
- Unlocked for overclocking
- Not available
Cache
- L2 cache
- Not available
Power and thermals
Memory
- Memory support
Memory type Max speed (MT/s) LPDDR5X 7,467 DDR5 6,400 - Max memory speed (official)
- 7,467MT/s
- Memory bandwidth (claimed)
- Not available
- ECC memory support
- Not available
Platform
- Compatible chipsets
- Not available
- CPU PCIe lanes
PCIe generation Lanes 5 4 4 8 Source1Maker product pageintel.com/content/www/us/en/products/sku/245722/intel-core-ultra-7-processor-355-12m-cache-up-to-4-70-ghz/specifications.htmlRead 15 October 2026PCI Express Revision 5.0 and 4.0. Configurations: x4 PCIe5 (1x4, 2x2), x4 PCIe4 (1x4, 2x2, 4x1) and a second x4 PCIe4 group. Max # of PCI Express Lanes 12. That is 4 Gen 5 lanes and 8 Gen 4 lanes. The platform controller tile is part of the processor, so its lanes count. Chips and Cheese describes the same split for the smallest Panther Lake configuration.5Press articleold.chipsandcheese.com/2025/10/14/panther-lakes-reveal-at-itt-2025Read 15 October 2026The smallest configuration's platform controller tile has 12 PCIe lanes split between 4 Gen 5 lanes and 8 Gen 4 lanes. This matches the ARK configuration rows.- CPU PCIe lanes in total
- 12
- Highest PCIe generation
- 5
- Native USB4 or Thunderbolt
- Yes
Integrated graphics
- Integrated graphics
- Yes1Maker product pageintel.com/content/www/us/en/products/sku/245722/intel-core-ultra-7-processor-355-12m-cache-up-to-4-70-ghz/specifications.htmlRead 15 October 2026
- Integrated GPU
- Intel Graphics1Maker product pageintel.com/content/www/us/en/products/sku/245722/intel-core-ultra-7-processor-355-12m-cache-up-to-4-70-ghz/specifications.htmlRead 15 October 2026GPU Name: Intel Graphics.
- DisplayPort version
- 2.1 UHBR201Maker product pageintel.com/content/www/us/en/products/sku/245722/intel-core-ultra-7-processor-355-12m-cache-up-to-4-70-ghz/specifications.htmlRead 15 October 2026Graphics Output: eDP1.5, DP 2.1 UHBR20, HDMI 2.1 FRL.
- Hardware video encode
- H.264, H.265 (HEVC), AV11Maker product pageintel.com/content/www/us/en/products/sku/245722/intel-core-ultra-7-processor-355-12m-cache-up-to-4-70-ghz/specifications.htmlRead 15 October 2026Encode/Decode rows: H.264 Yes, H.265 (HEVC) Yes, AV1 Yes, H.266 (VVC) Decode Only.
- Hardware video decode
- H.264, H.265 (HEVC), AV1, H.266 (VVC)1Maker product pageintel.com/content/www/us/en/products/sku/245722/intel-core-ultra-7-processor-355-12m-cache-up-to-4-70-ghz/specifications.htmlRead 15 October 2026Encode/Decode rows: H.264 Yes, H.265 (HEVC) Yes, AV1 Yes and H.266 (VVC) Decode Only. ARK has no VP9 row, so VP9 is left out.
NPU
- Total AI performance
- Not available
Measured performance
We could not find any of these 7 fields. Show them
- Cinebench 2024 single-core
- Not available
- Cinebench 2024 multi-core
- Not available
- Cinebench 2026 single-thread
- Not available
- Cinebench 2026 multi-core
- Not available
- Geekbench 6 single-core
- Not available
- Geekbench 6 multi-core
- Not available
- Game frame rates
- Not available
Measured power and temperature
We could not find any of these 5 fields. Show them
- CPU power in multi-thread load (measured)
- Not available
- CPU power while gaming (measured)
- Not available
- CPU power at idle (measured)
- Not available
- CPU temperature in stress test
- Not available
- All-core clock in stress test
- Not available
In the box
We could not find any of these 2 fields. Show them
- Cooler in the box
- Not available
- Included cooler
- Not available
Links
- Product page
- www.intel.com/content/www/us/en/products/sku/245722/intel-core-ultra-7-processor-355-12m-cache-up-to-4-70-ghz/specifications.html1Maker product pageintel.com/content/www/us/en/products/sku/245722/intel-core-ultra-7-processor-355-12m-cache-up-to-4-70-ghz/specifications.htmlRead 15 October 2026
- Spec sheet
- Not available
- Manual
- Not available
- EPREL registration number
- Not available
Warranty
We could not find any of these 1 fields. Show them
- Manufacturer warranty (source market)
- Not available
Compare with
Pick a CPU to see both side by side. Differences are marked yellow.
Variants
Each variant lists only what differs from the specs above.
| Model number |
|---|
| QQ807293B9B40EF |
| QQ807293B9B458D |
Sources
We read 6 sources for this CPU. The numbers match the markers in the sheet.
See a wrong value? Tell us and name the field.