M1 Ultra (20C48G) vs IBM PowerPC 7400 350MHz
            M1 Ultra (20C48G)
            
                
            
        
    
            IBM PowerPC 7400 350MHz
            
                
            
        
    | 20 Cores 20 Threads 3.23GHz Clock | 1 Core 1 Thread 350MHz Clock | 
| Socket Unknown | Socket CBGA 360 | 
| iGPU48-Core M1 Ultra 15.85 TFLOPS FP32 | iGPU No GPU - - | 
| GB6S 2,400 59% | GB6S N/A 0% | 
| GB6M 18,650 70% | GB6M N/A 0% | 
| CB23S 1,550 60% | CB23S N/A 0% | 
| CB23M 23,520 55% | CB23M N/A 0% | 
| ManufacturerApple | ManufacturerIBM | 
| ArchitectureApple Silicon 10 | ArchitectureG4 | 
| FamilyM Series | FamilyG4 | 
| Instruction Set (ISA) AArch64 | Instruction Set (ISA) PowerPC | 
| Codename Jade-2C - M1 Ultra P-Core Firestorm - - E-Core Icestorm | Codename - - - - - - - - - | 
| Market Segment Desktop | Market Segment Desktop | 
| Release Date 3/8/2022 | Release Date 8/31/1999 | 
| Foundry TSMC - - - | Foundry Motorola - - - | 
| Node N5 - - - | Node 200nm - - - | 
| Die Size 2x 432 mm² - - - | Die Size 83 mm² - - - | 
| Transistor Count 2x 57 Billion - - - | Transistor Count 11 Million - - - | 
| Unknown | CBGA 360 | 
| 20 Cores 16 P-Cores - 4 E-Cores | 1 Core - - - | 
| 20 Threads 16 P-Threads - 4 E-Threads | 1 Thread - - - | 
| P-Core 3.23GHz - - | - 350MHz - - | 
| - - - | - - - | 
| E-Core 2.06GHz - | - - - | 
| Overclocking Locked - - - | Overclocking Locked - - - | 
| Integrated Chipset - | Type FSB | 
| - - | Clock 100MHz | 
| - - | Data Rate Single | 
| - - | Transfer Rate 100MT/s | 
| - - | Width 64Bit | 
| - - | - - | 
| - - | Bandwidth 0.8GB/s | 
| - - | - - | 
| L0 Instruction - - | L0 Instruction - - | 
| L0 Data - - | L0 Data - - | 
| L1 Instruction 192KB/P-Core 6-way set associative - - 128KB/E-Core 4-way set associative | L1 Instruction 32KB/Core 4-way set associative - - - - | 
| L1 Data 128KB/P-Core 4-way set associative - - 64KB/E-Core 2-way set associative | L1 Data 32KB/Core 4-way set associative - - - - | 
| L2 - - 48MB Shared 12-way set associative - - - - - - 4MB Shared (E-Core) 16-way set associative | L2 512KB/Core 8-way set associative - - - - - - - - - - | 
| - - - - - - - - - - | - - - - - - - - - - | 
| - - - 96MB SLC Cache | - - - - | 
| Channels 8 | No Memory Controller | 
| Max Memory 128GB | |
| ECC Not Supported | |
| Bus Width/Channel 128Bit Bus Width 1024Bit | |
| Clock 3200MHz Transfer Rate 6400MT/s | |
| Bandwidth/Channel 102.4GB/s Bandwidth 819.2GB/s | 
| TDP 180W - - - | TDP 15W - - - | 
| Temp 100°C Max - | - - - | 
| Included Cooler Not Included | Included Cooler Not Included | 
| PCIe 4.0 x24 Lanes | No PCIe | 
| 48-Core M1 Ultra 6144 Shaders 1290MHz 15.85 TFLOPS FP32 | No GPU - - - - | 
| - | No NPU - | 
| - 32 Cores | - - | 
| 22 TOPS FP16 | -  | 
| - - | - - | 
| No Cellular | No Cellular | 
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