Intel Core Ultra 5 338H vs Intel Core Ultra 7 355 Full Specs
12 Cores(4P+4M+4E) 12 Threads(4P+4M+4E) 1.9GHz | 8 Cores(4P+4E) 8 Threads(4P+4E) 2.3GHz |
TDP 25W | TDP 25W |
Bandwidth 136.5GB/s LPDDR5X | Bandwidth 108.8GB/s · |
iGPU | iGPU |
·· 196.6 TFLOPSFP16 | ·· 81.92 TFLOPSFP16 |
Socket | Socket |
Core Ultra 5 338H3.3GHz
Core Ultra 7 3553.5GHz12 Cores 4P 4M 4E | 8 Cores 4P - 4E |
12 Threads 4P 4M 4E | 8 Threads 4P - 4E |
Base Clock 1.9GHz | Base Clock 2.3GHz |
Boost Clock 4.7GHz | Boost Clock 4.7GHz |
Overclocking Locked | Overclocking Locked |
L0i 64KB | L0i 64KB |
L0d 48KB | L0d 48KB |
L1i 64KB M 64KB E | L1i - 64KB E |
L1d 192KB P 32KB M 32KB E | L1d 192KB P - 32KB E |
L2 3MB P 4MB M shared 4MB E shared | L2 3MB P - 4MB E shared |
L3 18MB | L3 12MB |
Type LPDDR5X | Type · |
Max Memory 96GB | Max Memory 96GB |
ECC No | ECC No |
Channels 2 | Channels 2 |
Bus Width 128-bit | Bus Width 128-bit |
Speed 8533MT/s | Speed 6800MT/s |
Bandwidth 136.5GB/s | Bandwidth 108.8GB/s |
Bandwidth Calculator Channels Transfer Rate Calculated Bandwidth 136.5GB/s | Bandwidth Calculator Channels Transfer Rate Calculated Bandwidth 108.8GB/s |
TDP 25W | TDP 25W |
cTDP-down 15W | cTDP-down 12W |
Peak Power 80W | Peak Power 55W |
Max Operating Temp 100°C Max | Max Operating Temp 100°C Max |
PCIe PCIe 5.0 x415.8GB/sBandwidth | PCIe PCIe 5.0 x415.8GB/sBandwidth |
PCIe Secondary PCIe 4.0 x815.8GB/sBandwidth | PCIe Secondary PCIe 4.0 x815.8GB/sBandwidth |
iGPU | iGPU |
Shaders 1280 | Shaders 512 |
Boost Clock 2.4GHz | Boost Clock 2.5GHz |
·· 196.6 TFLOPSFP16 | ·· 81.92 TFLOPSFP16 |
NPU Model NPU 5 | NPU Model NPU 5 |
NPU Cores 3 | NPU Cores 3 |
Performance 47 TOPSINT8 | Performance 49 TOPSINT8 |
Manufacturer | Manufacturer |
ISA x86-64 | ISA x86-64 |
Architecture | Architecture |
Family | Family |
Branding  | Branding  |
Codename Panther Lake-X Panther Lake-X-4P-12EVariant Cougar CoveP-Core DarkmontM-Core DarkmontE-Core | Codename Panther Lake-U Panther Lake-U-4P-4EVariant Cougar CoveP-Core DarkmontM-Core DarkmontE-Core |
Market Segment Laptop | Market Segment Laptop |
Release Date Jan 5, 2026 | Release Date Jan 5, 2026 |
Foundry Intel | Foundry Intel |
Other Foundries TSMCiGPU TSMCPCH | Other Foundries InteliGPU TSMCPCH |
Fabrication Node Intel 18A N3EiGPU N6PCH | Fabrication Node Intel 18A Intel 3iGPU N6PCH |
Die Size 114mm² 54mm²iGPU 49mm²PCH | Die Size 93mm² 27mm²iGPU 49mm²PCH |
Transistor Count 4 MillionPCH | Transistor Count 4 MillionPCH |
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