Intel Core i9-11900KB vs Intel Core i9-12900KS Full Specs
8 Cores 16 Threads 3.3GHz | 16 Cores(8P+8E) 24 Threads(16P+8E) 3.4GHz |
TDP 65W | TDP 150W |
Bandwidth 51.2GB/s DDR4 | Bandwidth 76.8GB/s · |
iGPU | iGPU |
·· 1.49 TFLOPSFP16 | ·· 1.59 TFLOPSFP16 |
Socket | Socket |
Core i9-11900KB2,250
Core i9-12900KS2,8018 Cores 8P - | 16 Cores 8P 8E |
16 Threads 16P - | 24 Threads 16P 8E |
Base Clock 3.3GHz | Base Clock 3.4GHz |
Boost Clock 4.9GHz | Boost Clock 5.5GHz |
Overclocking Unlocked | Overclocking Unlocked |
L1i 32KB P - | L1i 32KB P 64KB E |
L1d 48KB P - | L1d 48KB P 32KB E |
L2 1.25MB P - | L2 1.25MB P 4MB E shared |
L3 24MB | L3 30MB |
Type DDR4 | Type · |
Max Memory 128GB | Max Memory 128GB |
ECC No | ECC No |
Channels 2 | Channels 2 |
Bus Width 128-bit | Bus Width 128-bit |
Speed 3200MT/s | Speed 4800MT/s |
Bandwidth 51.2GB/s | Bandwidth 76.8GB/s |
Bandwidth Calculator Channels Transfer Rate Calculated Bandwidth 51.2GB/s | Bandwidth Calculator Channels Transfer Rate Calculated Bandwidth 76.8GB/s |
TDP 65W | TDP 150W |
cTDP-down 55W | cTDP-down - |
Peak Power - | Peak Power 241W |
Max Operating Temp 100°C Max | Max Operating Temp 90°C Max |
Included Cooler - | Included Cooler 0 |
Bus Type DMI | Bus Type DMI |
Bus Config 8 lanes | Bus Config 8 lanes |
Bus Speed 8GT/s | Bus Speed 16GT/s |
Bus Bandwidth 8GB/s | Bus Bandwidth 16GB/s |
PCIe PCIe 4.0 x2039.4GB/sBandwidth | PCIe PCIe 5.0 x1663GB/sBandwidth |
- | PCIe Secondary PCIe 4.0 x47.9GB/sBandwidth |
iGPU | iGPU |
Shaders 256 | Shaders 256 |
Boost Clock 1.45GHz | Boost Clock 1.55GHz |
·· 1.49 TFLOPSFP16 | ·· 1.59 TFLOPSFP16 |
NPU Model GNA 2.0 | NPU Model GNA 3.0 |
Manufacturer | Manufacturer |
ISA x86-64 | ISA x86-64 |
Architecture | Architecture |
Family | Family |
Branding  | Branding |
Codename Tiger Lake-B Tiger Lake-8CVariant Willow CoveP-Core - | Codename Alder Lake-HX Alder Lake-8P-8EVariant Golden CoveP-Core GracemontE-Core |
Market Segment Desktop | Market Segment Desktop |
Release Date Jun 11, 2021 | Release Date Apr 5, 2022 |
Foundry Intel | Foundry Intel |
Fabrication Node 10nm SuperFin | Fabrication Node Intel 7 |
Die Size 190mm² | Die Size 202mm² |
Transistor Count 12.3 Billion | Transistor Count 14.6 Billion |
Transistor Density 65 MTr/mm² | Transistor Density 72 MTr/mm² |
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