Apple M1 Ultra (20C48G) vs Apple M1 Ultra (20C64G) Full Specs
20 Cores(16P+4E) 20 Threads(16P+4E) 3.23GHz | 20 Cores(16P+4E) 20 Threads(16P+4E) 3.23GHz |
TDP 220W | TDP 220W |
Bandwidth 819.2GB/s LPDDR5 | Bandwidth 819.2GB/s LPDDR5 |
iGPU | iGPU |
·· 15.93 TFLOPSFP16 | ·· 21.23 TFLOPSFP16 |
20 Cores 16P 4E | 20 Cores 16P 4E |
20 Threads 16P 4E | 20 Threads 16P 4E |
Base Clock 3.23GHz | Base Clock 3.23GHz |
Overclocking Locked | Overclocking Locked |
L1i 192KB P 128KB E | L1i 192KB P 128KB E |
L1d 128KB P 64KB E | L1d 128KB P 64KB E |
L2 48MB P shared 4MB E shared | L2 48MB P shared 4MB E shared |
SLC Cache 96MB | SLC Cache 96MB |
Type LPDDR5 | Type LPDDR5 |
Max Memory 128GB | Max Memory 128GB |
ECC No | ECC No |
Channels 8 | Channels 8 |
Bus Width 1024-bit | Bus Width 1024-bit |
Speed 6400MT/s | Speed 6400MT/s |
Bandwidth 819.2GB/s | Bandwidth 819.2GB/s |
Bandwidth Calculator Channels Transfer Rate ·· | Bandwidth Calculator Channels Transfer Rate ·· |
TDP 220W | TDP 220W |
Max Operating Temp 100°C Max | Max Operating Temp 100°C Max |
PCIe PCIe 4.0 x2855.1GB/sBandwidth | PCIe PCIe 4.0 x2855.1GB/sBandwidth |
iGPU | iGPU |
Shaders 6144 | Shaders 8192 |
Boost Clock 1.3GHz | Boost Clock 1.3GHz |
·· 15.93 TFLOPSFP16 | ·· 21.23 TFLOPSFP16 |
NPU Model H13 Eos | NPU Model H13 Eos |
NPU Cores 32 | NPU Cores 32 |
NPU Clock 1.5GHz | NPU Clock 1.5GHz |
Performance 22 TOPSFP16 | Performance 22 TOPSFP16 |
Manufacturer | Manufacturer |
ISA AArch64 | ISA AArch64 |
Architecture Apple Silicon 10ARMv8.5-A | Architecture Apple Silicon 10ARMv8.5-A |
Family | Family |
Branding  | Branding |
Codename Jade-2C M1 UltraVariant FirestormP-Core IcestormE-Core | Codename Jade-2C M1 UltraVariant FirestormP-Core IcestormE-Core |
Market Segment Workstation | Market Segment Workstation |
Release Date Mar 8, 2022 | Release Date Mar 8, 2022 |
Foundry TSMC | Foundry TSMC |
Fabrication Node N5 | Fabrication Node N5 |
Die Size 865mm² | Die Size 865mm² |
Transistor Count 114 Billion | Transistor Count 114 Billion |
Transistor Density 132 MTr/mm² | Transistor Density 132 MTr/mm² |
Desktops | Desktops |
