Intel Xeon w7-3555 vs Apple M3 Ultra (32C80G) Full Specs
28 Cores 56 Threads 2.7GHz | 32 Cores(24P+8E) 32 Threads(24P+8E) 4.05GHz |
TDP 325W | TDP 300W |
Bandwidth 307.2GB/s DDR5 | Bandwidth 819.2GB/s LPDDR5 |
iGPU 0 | iGPU |
·· - | ·· 28.26 TFLOPSFP16 |
Socket | Socket - |
28 Cores 28P - | 32 Cores 24P 8E |
56 Threads 56P - | 32 Threads 24P 8E |
Base Clock 2.7GHz | Base Clock 4.05GHz |
Boost Clock 4.8GHz | Boost Clock - |
Overclocking Locked | Overclocking Locked |
L1i 32KB P - | L1i 192KB P 128KB E |
L1d 48KB P - | L1d 128KB P 64KB E |
L2 2MB P - - | L2 64MB P shared 4MB E shared |
L3 75MB | L3 - |
SLC Cache - | SLC Cache 96MB |
Type DDR5 | Type LPDDR5 |
Max Memory 4.1TB | Max Memory 128GB |
ECC Yes | ECC No |
Channels 8 | Channels 8 |
Bus Width 512-bit | Bus Width 1024-bit |
Speed 4800MT/s | Speed 6400MT/s |
Bandwidth 307.2GB/s | Bandwidth 819.2GB/s |
Bandwidth Calculator Channels Transfer Rate Calculated Bandwidth 307.2GB/s | Bandwidth Calculator Channels Transfer Rate Calculated Bandwidth 819.2GB/s |
TDP 325W | TDP 300W |
Peak Power 390W | Peak Power - |
Max Operating Temp 102°C Max | Max Operating Temp 100°C Max |
T-Case 78°C Max | T-Case - |
Included Cooler 0 | Included Cooler - |
Bus Type DMI | Bus Type - |
Bus Config 8 lanes | Bus Config - |
Bus Speed 8GT/s | Bus Speed - |
Bus Bandwidth 8GB/s | Bus Bandwidth - |
PCIe PCIe 5.0 x112441.1GB/sBandwidth | PCIe PCIe 4.0 x3263GB/sBandwidth |
iGPU 0 | iGPU |
Shaders - | Shaders 10240 |
Boost Clock - | Boost Clock 1.38GHz |
·· - | ·· 28.26 TFLOPSFP16 |
NPU Model DL Boost | NPU Model H15 Erebus |
NPU Cores - | NPU Cores 32 |
NPU Clock - | NPU Clock 2.36GHz |
Performance - | Performance 36 TOPSFP16 |
Manufacturer | Manufacturer |
ISA x86-64 | ISA AArch64 |
Architecture | Architecture Apple Silicon 13ARMv8.6-A |
Family | Family |
Branding ![]() | Branding ![]() |
Codename Sapphire Rapids-HBM Sapphire Rapids-XCCVariant Golden CoveP-Core - | Codename Palma-D M3 UltraVariant EverestP-Core Sawtooth E-Core |
Market Segment Workstation | Market Segment Workstation |
Release Date Jul 1, 2024 | Release Date Mar 5, 2025 |
Foundry Intel | Foundry TSMC |
Fabrication Node Intel 7 | Fabrication Node N3B |
Die Size 1576mm² | Die Size 954mm² |
Transistor Count 112 Billion | Transistor Count 184 Billion |
Transistor Density 71 MTr/mm² | Transistor Density 193 MTr/mm² |
No images available
No images available
Desktops - | Desktops |



