Apple M1 Ultra (20C48G) vs Intel Core Ultra 5 245K Full Specs
20 Cores(16P+4E) 20 Threads(16P+4E) 3.23GHz | 14 Cores(6P+8E) 14 Threads(6P+8E) 4.2GHz |
TDP 220W | TDP 125W |
Bandwidth 819.2GB/s LPDDR5 | Bandwidth 102.4GB/s DDR5 |
iGPU | iGPU |
·· 15.93 TFLOPSFP16 | ·· 3.89 TFLOPSFP16 |
Socket - | Socket |
20 Cores 16P 4E | 14 Cores 6P 8E |
20 Threads 16P 4E | 14 Threads 6P 8E |
Base Clock 3.23GHz | Base Clock 4.2GHz |
Boost Clock - | Boost Clock 5.2GHz |
Overclocking Locked | Overclocking Unlocked |
L1i 192KB P 128KB E | L1i 64KB P 64KB E |
L1d 128KB P 64KB E | L1d 48KB P 32KB E |
L2 48MB P shared 4MB E shared | L2 3MB P - 8MB E shared |
L3 - | L3 24MB |
SLC Cache 96MB | SLC Cache - |
Type LPDDR5 | Type DDR5 |
Max Memory 128GB | Max Memory 192GB |
ECC No | ECC Yes |
Channels 8 | Channels 2 |
Bus Width 1024-bit | Bus Width 128-bit |
Speed 6400MT/s | Speed 6400MT/s |
Bandwidth 819.2GB/s | Bandwidth 102.4GB/s |
Bandwidth Calculator Channels Transfer Rate Calculated Bandwidth 819.2GB/s | Bandwidth Calculator Channels Transfer Rate Calculated Bandwidth 102.4GB/s |
TDP 220W | TDP 125W |
Peak Power - | Peak Power 159W |
Max Operating Temp 100°C Max | Max Operating Temp 105°C Max |
Included Cooler - | Included Cooler 0 |
Bus Type - | Bus Type DMI |
Bus Config - | Bus Config 8 lanes |
Bus Speed - | Bus Speed 16GT/s |
Bus Bandwidth - | Bus Bandwidth 16GB/s |
PCIe PCIe 4.0 x2855.1GB/sBandwidth | PCIe PCIe 5.0 x2078.8GB/sBandwidth |
- | PCIe Secondary PCIe 4.0 x47.9GB/sBandwidth |
iGPU | iGPU |
Shaders 6144 | Shaders 512 |
Boost Clock 1.3GHz | Boost Clock 1.9GHz |
·· 15.93 TFLOPSFP16 | ·· 3.89 TFLOPSFP16 |
NPU Model H13 Eos | NPU Model AI Boost 3 |
NPU Cores 32 | NPU Cores 2 |
NPU Clock 1.5GHz | NPU Clock - |
Performance 22 TOPSFP16 | Performance 13 TOPSINT8 |
Manufacturer | Manufacturer |
ISA AArch64 | ISA x86-64 |
Architecture Apple Silicon 10ARMv8.5-A | Architecture |
Family | Family |
Branding ![]() | Branding ![]() |
Codename Jade-2C M1 UltraVariant FirestormP-Core IcestormE-Core | Codename Arrow Lake-S Arrow Lake-S-8P-16EVariant Lion CoveP-Core SkymontE-Core |
Market Segment Workstation | Market Segment Desktop |
Release Date Mar 8, 2022 | Release Date Oct 24, 2024 |
Foundry TSMC | Foundry TSMC |
Other Foundries - | Other Foundries TSMCiGPU TSMCIO TSMCSoC |
Fabrication Node N5 - - - | Fabrication Node N3B N5iGPU N6IO N6SoC |
Die Size 865mm² - - - | Die Size 135mm² 23mm²iGPU 28mm²IO 100mm²SoC |
Transistor Count 114 Billion | Transistor Count - |
Transistor Density 132 MTr/mm² | Transistor Density - |
No images available
No images available
Desktops | Desktops |



