CPUs / Compare
Intel Core Ultra 7 258V vs Intel Core Ultra 7 355
Product A: Intel
47 of 74 known
Change Intel Core Ultra 7 258V
Compare the Intel Core Ultra 7 355 with
Product B: Intel
43 of 74 known
Change Intel Core Ultra 7 355
26 of 66 fields differ
- 23 different values
- 3 known for one only
- 18 the same
- 22 missing for both
Biggest differences
Each bar uses the scale of all 90 CPUs.
- Max turbo powerLower is betterA: 37WB: 55WCore Ultra 7 258V is 18 W lower.
- Base power (TDP)Lower is betterA: 17WB: 25WCore Ultra 7 258V is 8 W lower.
- Max memory speed (official, any module type)A: 8,533MT/sB: 7,467MT/sCore Ultra 7 258V is 1,066 MT/s higher.
All 74 fields
Every value links to where we found it.


General
5 of 13 differ
Series
Model numbers
GTIN / EAN
Not available
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.
Status
Predecessor
Not available
Not available
Successor
Not available
Not available
Launch price (US)
Not available
Not available
Launch price (EU)
Not available
Not available
Markets
Not available
Not available
Colours
Not available
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Segment
Instruction set
Codename
CPU process (as published)
CPU process node
AVX-512
Cores and clocks
2 of 7 differ
Core configuration
AIntel Core Ultra 7 258V
| Core type | Count | Core | Base clock (GHz) | Max clock (GHz) |
|---|---|---|---|---|
| Performance | 4 | Lion Cove | 2.2 | 4.8 |
| Low-power efficiency | 4 | Skymont | 2.2 | 3.7 |
Source1Maker product pageintel.com/content/www/us/en/products/sku/240957/intel-core-ultra-7-processor-258v-12m-cache-up-to-4-80-ghz/specifications.htmlRead 15 October 2026Total Cores 8. # of Performance-cores 4, Performance-core Base Frequency 2.2 GHz, Performance-core Max Turbo Frequency 4.8 GHz. # of Low Power Efficient-cores 4, Low Power Efficient-core Base Frequency 2.2 GHz, Low Power Efficient-core Max Turbo Frequency 3.7 GHz. ARK names no core architecture. The names Lion Cove and Skymont come from the Hot Chips 2024 slides.5Maker spec sheet (PDF)hc2024.hotchips.org/assets/program/conference/day1/56_HC2024.Intel.AGihon.final.pdfRead 15 October 2026Intel's Hot Chips 2024 Lunar Lake presentation names the P-core Lion Cove and the E-core Skymont. Its memory slide says up to 32 GB with 2 ranks of LPDDR5X on package.
BIntel Core Ultra 7 355
| 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
8
Cores labelled performance
4
4
Cores labelled efficiency
4
4
Threads
Max boost clock
Unlocked for overclocking
Not available
Not available
Cache
1 of 3 differ
L3 cache
AMD 3D V-Cache
Power and thermals
3 of 4 differ
Base power (TDP)
Max turbo power
Configurable power range
Max operating temperature
Memory
3 of 6 differ
Memory support
AIntel Core Ultra 7 258V
| Memory type | Module type | Max speed (MT/s) |
|---|---|---|
| LPDDR5X | On package | 8,533 |
Source1Maker product pageintel.com/content/www/us/en/products/sku/240957/intel-core-ultra-7-processor-258v-12m-cache-up-to-4-80-ghz/specifications.htmlRead 15 October 2026Memory Types: Up to LPDDR5X 8533 MT/s. Max Memory Size 32 GB. The memory sits in the processor package, so the module type is on-package. The maker gives 32 GB as 2 ranks and 16 GB as 1 rank, which is not a module count times ranks, so no configuration text is stored. The datasheet and Hot Chips slides confirm LPDDR5X on package.3Maker spec sheet (PDF)download.intel.com/newsroom/2024/client-computing/Intel-core-ultra-mobile-processors-series-2-product-brief.pdfRead 15 October 2026SKU chart: Max Memory Speed LPDDR5X-8533 MT/s. The 258V column reads 32 GB/2R.
BIntel Core Ultra 7 355
| Memory type | Max speed (MT/s) |
|---|---|
| LPDDR5X | 7,467 |
| DDR5 | 6,400 |
Max memory speed (official)
8,533MT/s
7,467MT/s
Memory channels
21Maker product pageintel.com/content/www/us/en/products/sku/240957/intel-core-ultra-7-processor-258v-12m-cache-up-to-4-80-ghz/specifications.htmlRead 15 October 2026Max # of Memory Channels: 2. The datasheet counts 8 channels of 16 bits, which is a 128-bit bus and 2 channels of 64 bits.4Maker spec sheet (PDF)cdrdv2-public.intel.com/829568/829568-004.pdfRead 15 October 2026Table 54, Integrated LPDDR5x: 8 channels of 16 bit, maximum frequency 8533 MT/s, 1 or 2 ranks. That is a 128-bit bus, stored as 2 channels as ARK counts them.
Memory bandwidth (claimed)
Not available
Not available
Max memory
ECC memory support
Not available
Not available
Platform
4 of 7 differ
Socket or package
Compatible chipsets
Not available
Not available
CPU PCIe lanes
AIntel Core Ultra 7 258V
| PCIe generation | Lanes |
|---|---|
| 5 | 4 |
| 4 | 4 |
Source1Maker product pageintel.com/content/www/us/en/products/sku/240957/intel-core-ultra-7-processor-258v-12m-cache-up-to-4-80-ghz/specifications.htmlRead 15 October 2026PCI Express Revision 5.0 and 4.0. Configurations: 1x4 (x2,x4) 5.0 + 1x4 (x1,x2,x4) 4.0. Max # of PCI Express Lanes 8. The platform controller tile is part of the processor package, so its lanes count.3Maker spec sheet (PDF)download.intel.com/newsroom/2024/client-computing/Intel-core-ultra-mobile-processors-series-2-product-brief.pdfRead 15 October 2026SKU chart row Total PCIe Lanes: 4 PCIe Gen 5 Lanes + 4 PCIe Gen 4 Lanes.
BIntel Core Ultra 7 355
| 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
8
12
Highest PCIe generation
5
5
Native USB ports
AIntel Core Ultra 7 258V
| Standard | Count |
|---|---|
| Thunderbolt 4 | 3 |
Source1Maker product pageintel.com/content/www/us/en/products/sku/240957/intel-core-ultra-7-processor-258v-12m-cache-up-to-4-80-ghz/specifications.htmlRead 15 October 2026Intel Thunderbolt 4: Yes. The product brief gives the count of 3 integrated Thunderbolt 4 ports. The datasheet also lists USB 3.2 lanes that boards may enable (at most two), but gives no fixed port count, so no USB 3.2 row is stored.3Maker spec sheet (PDF)download.intel.com/newsroom/2024/client-computing/Intel-core-ultra-mobile-processors-series-2-product-brief.pdfRead 15 October 2026SKU chart row Thunderbolt Technology: 3 Integrated Thunderbolt 4 Ports, shared by all nine Lunar Lake SKUs.
Native USB4 or Thunderbolt
Yes
Yes
Integrated graphics
5 of 9 differ
Integrated graphics
Integrated GPU
GPU cores
Max GPU clock
Max displays
DisplayPort version
HDMI version
Hardware video encode
Hardware video decode
H.264, H.265 (HEVC), VP9, AV1, H.266 (VVC)1Maker product pageintel.com/content/www/us/en/products/sku/240957/intel-core-ultra-7-processor-258v-12m-cache-up-to-4-80-ghz/specifications.htmlRead 15 October 2026H.264, H.265 (HEVC) and AV1 Yes. H.266 (VVC): Decode Only. ARK has no VP9 row. The datasheet adds VP9.4Maker spec sheet (PDF)cdrdv2-public.intel.com/829568/829568-004.pdfRead 15 October 2026Table 68, Hardware Accelerated Video Decoding: AVC/H264, HEVC/H265, VP9, AV1 and VVC/H266. Table 69 lists AVC, HEVC and AV1 for encoding.
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
2 of 2 differ
NPU performance
Measured performance
None of 7 known
Cinebench 2024 single-core
Not available
Not available
Cinebench 2024 multi-core
Not available
Not available
Cinebench 2026 single-thread
Not available
Not available
Cinebench 2026 multi-core
Not available
Not available
Geekbench 6 single-core
Not available
Not available
Geekbench 6 multi-core
Not available
Not available
Game frame rates
Not available
Not available
Measured power and temperature
1 of 5 differ
CPU power in multi-thread load (measured)
Not available
Not available
CPU power while gaming (measured)
Not available
Not available
CPU power at idle (measured)
Not available
Not available
CPU temperature in stress test
Not available
Not available
In the box
None of 2 known
Cooler in the box
Not available
Not available
Included cooler
Not available
Not available
Links
Not compared
Product page
Spec sheet
download.intel.com/newsroom/2024/client-computing/Intel-core-ultra-mobile-processors-series-2-product-brief.pdf3Maker spec sheet (PDF)download.intel.com/newsroom/2024/client-computing/Intel-core-ultra-mobile-processors-series-2-product-brief.pdfRead 15 October 2026Product Brief for Intel Core Ultra Mobile Processors (Series 2). Its SKU chart has one column per processor number, including the 258V.
Not available
Manual
Not available
Not available
EPREL registration number
Not available
Not available
Warranty
None of 1 known
Manufacturer warranty (source market)
Not available
Not available

















