Intel Xeon W-11855M vs AMD Ryzen 5 6600U: comparison
Comparison of Intel Xeon W-11855M and AMD Ryzen 5 6600U: key differences and a full specification table.
Key differences
Intel Xeon W-11855M has a higher maximum clock (4.9 GHz vs 4.5 GHz), a larger L3 cache (18 MB vs 16 MB) and a higher maximum memory size (128 GB vs 64 GB).
At the same time, AMD Ryzen 5 6600U has a finer process node (6 nm vs 10 nm) and a higher maximum integrated graphics clock (1.9 GHz vs 1.45 GHz).
Both processors match on: core count (6), thread count (12), memory channels (2), PCIe version (4).
These are specification values: they show differences between the models but do not determine a performance winner. For a specific workload, rely on independent benchmarks.
Key specifications
| Parameter | Intel Xeon W-11855M | AMD Ryzen 5 6600U |
|---|---|---|
| Cores / threads | 6 / 12 | 6 / 12 |
| Max boost clock | 4.9 GHz | 4.5 GHz |
| L3 cache | 18 MB | 16 MB |
| Process | 10 nm | 6 nm |
| Integrated graphics | UHD-графика Intel для процессоров Intel Core 11-го поколения | AMD Radeon 660M |
Full specification table
Differing values are highlighted. This is not a better/worse rating: numbers from different architectures are not always comparable.
| Parameter | Intel Xeon W-11855M | AMD Ryzen 5 6600U |
|---|---|---|
| General | ||
| Model | W-11855M | — |
| Codename | Tiger Lake | Rembrandt |
| Segment | Mobile | Mobile |
| Product line | Процессор Intel Xeon W | AMD Ryzen 5 Mobile Processors with Radeon Graphics |
| Product family | — | AMD Ryzen Processors |
| Architecture | — | "Zen 3+" |
| Process | 10 nm | 6 nm |
| Launch date | Q2 2021 | 04/19/2022 |
| Status | Launched | — |
| Embedded options available | No | — |
| Dies per package | — | 1 |
| Unlocked for overclocking | — | No |
| Operating system support | — | Windows 11 - 64-Bit Edition, Windows 10 - 64-Bit Edition, RHEL x86 64-Bit, Ubuntu x86 64-Bit |
| Regional availability | — | Global, China, NA, EMEA, APJ, LATAM |
| Consumer oriented | — | Yes |
| CPU | ||
| Cores | 6 | 6 |
| Threads | 12 | 12 |
| Multithreading (SMT/HT) | Yes | Yes |
| Base clock | — | 2.9 GHz |
| Max boost clock | 4.9 GHz | 4.5 GHz |
| Turbo Boost Max 3.0 frequency | 4.9 GHz | — |
| L1 cache | — | 384 KB |
| L2 cache | — | 3 MB |
| L3 cache | 18 MB | 16 MB |
| Bus speed | 8 GT/s | — |
| Configurable TDP | — | 15–28 W |
| Configurable TDP-up | 45 W | — |
| Configurable TDP-down | 35 W | — |
| cTDP-up base frequency | 3.2 GHz | — |
| cTDP-down base frequency | 2.6 GHz | — |
| Instruction set width | 64 bit | — |
| Instruction set | — | x86-64 |
| Instruction set extensions | SSE4.1, SSE4.2, AVX2, AVX-512 | AES, AMD-V, AVX, AVX2, FMA3, MMX(+), SHA, SSE, SSE2, SSE3, SSE4.1, SSE4.2, SSE4A, SSSE3, x86-64 |
| Boost technology | — | Precision Boost 2 |
| Memory | ||
| Max memory size | 128 GB | 64 GB |
| Memory types | Up to 3200 MT/s | DDR5 |
| Memory channels | 2 | 2 |
| Max memory bandwidth | 51.2 GB/s | — |
| ECC memory supported | Yes | Yes |
| Memory speed (text) | — | 4x1R | DDR5-4800 | | | 4x1R | LPDDR5-6400 |
| Memory form factor | — | UDIMM |
| Graphics | ||
| Integrated graphics | UHD-графика Intel для процессоров Intel Core 11-го поколения | AMD Radeon 660M |
| Has integrated graphics | Yes | Yes |
| Graphics base frequency | 350 MHz | — |
| Graphics max frequency | 1.45 GHz | 1.9 GHz |
| Graphics units | 32 | 6 |
| Graphics video max memory | — | 2 GB |
| Max displays | 4 | 4 |
| Max resolution (DP) | 7680x4320@60Hz | — |
| Max resolution (HDMI) | 4096x2304@60Hz | — |
| Max resolution (eDP) | 4096x2304@60Hz | — |
| DirectX | 12.1 | 12 |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 3 | 2.2 |
| Graphics device ID | 0x9A70 | — |
| Quick Sync Video | Yes | — |
| Graphics output | eDP 1.4b, DP 1.4, HDMI 2.0b | — |
| Multi-format codec engines | 2 | — |
| DisplayPort over USB-C | — | Yes |
| Shading units | — | 384 |
| HDCP version | — | 2.2 |
| Adaptive sync | — | Yes |
| DisplayPort version | — | 2 |
| HDMI version | — | 2.1 |
| Multi-display support | — | Yes |
| Wireless display | — | Miracast |
| I/O and interfaces | ||
| PCI Express revision | 4 | 4 |
| Chipset PCIe revision | 3 | — |
| PCI Express lanes | 20 | 20 |
| PCI Express configurations | Up to 1x16+1x4, 2x8+1x4, 1x8+3x4 | — |
| SATA ports | — | 0 |
| Thunderbolt 4 | Yes | — |
| USB 2.0 ports | — | 4 |
| USB 3.2 Gen 2 ports | — | 2 |
| NVMe support | — | Boot, RAID0, RAID1, RAID10 |
| USB Type-C support | — | Yes |
| USB 3.2 Gen 1 ports | — | 0 |
| Package and thermal | ||
| Sockets supported | FCBGA1787 | FP7 |
| Max CPU configuration | 1 | — |
| Package size | 50 x 26.5 | — |
| TJUNCTION | 100 °C | 95 °C |
| Die size | — | 210 mm² |
| Security and virtualization | ||
| Virtualization (VT-x / AMD-V) | Yes | — |
| Virtualization for Directed I/O (VT-d) | Yes | — |
| Extended Page Tables (EPT) | Yes | — |
| AES-NI | Yes | — |
| Execute Disable Bit | — | Yes |
| Intel Trusted Execution Technology | Yes | — |
| Secure Key | Yes | — |
| Intel OS Guard | Yes | — |
| Intel Boot Guard | Yes | — |
| Intel Software Guard Extensions | No | — |
| Mode-based Execute Control | Yes | — |
| Control-Flow Enforcement Technology | Yes | — |
| Total Memory Encryption | Yes | — |
| Stable IT Platform Program | Yes | — |
| vPro Eligibility | Intel vPro Platform | — |
| AMD PRO technologies | — | No |
| Technologies | ||
| Thermal Monitoring Technologies | Yes | — |
| Deep Learning Boost | Yes | — |
| Volume Management Device | Yes | — |
| Turbo Boost Max 3.0 | Yes | — |
| Speed Shift Technology | Yes | — |
| Flex Memory Access | Yes | — |
| Optane Memory Supported | Yes | — |
| Smart Sound Technology | Yes | — |
| HD Audio | Yes | — |
| Wake on Voice | Yes | — |
| Gaussian & Neural Accelerator | Yes (2) | — |
| Image Processing Unit | Yes (6) | — |
| Identifiers | ||
| Product ID (OEM) | — | FP7:100-000000536 FP7r2: 100-000000548 |