Core i9-12900HK vs Core i9-7940X
Core i9-12900HK
Core i9-7940X
Performance Spectrum - CPU
About PassMark
PassMark CPU Mark evaluates processor speed through complex mathematical computations. It provides a reliable metric to compare multi-core performance, where higher scores indicate faster processing for multitasking, gaming, and heavy workloads.
Value Upgrade Path
This is the official ChipVERSUS Value Rating, comparing raw performance (PassMark) per dollar. Components placed above yours deliver better value for money.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Core i9-12900HK
Performance Per Dollar Core i9-7940X
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core i9-12900HK | Core i9-7940X |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($275) |
| Longevity | ✨ Modern (Alder Lake-H (2022) / Intel 7 nm) | ✨ Modern (Skylake (server) (2017−2018) / 14 nm) |
💎 Value Proposition
| Insight | Core i9-12900HK | Core i9-7940X |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ Higher cost ($275) |
Performance Check
To accurately isolate CPU performance, all benchmarks below use an NVIDIA RTX 4090 as the reference GPU. This eliminates GPU-side bottlenecks and highlights pure processing throughput differences between the CPUs.
Note: Real-world results may vary based on your actual GPU. CPU performance impact is more visible in processing-intensive titles and high-refresh-rate gaming scenarios.
Technical Specifications
Side-by-side comparison of Core i9-12900HK and Core i9-7940X
Core i9-12900HK
The Core i9-12900HK is manufactured by Intel. It was released in 4 January 2022 (3 years ago). It is based on the Alder Lake-H (2022) architecture. It features 14 cores and 20 threads. Base frequency is 2.5 GHz, with boost up to 5 GHz. L3 cache: 24 MB (total). L2 cache: 1.25 MB (per core). Built on Intel 7 nm process technology. Socket: FCBGA1744. Thermal design power (TDP): 45 Watt. Memory support: DDR4, DDR5. Passmark benchmark score: 25,512 points. Launch price was $299.
Core i9-7940X
The Core i9-7940X is manufactured by Intel. It was released in 1 September 2017 (8 years ago). It is based on the Skylake (server) (2017−2018) architecture. It features 14 cores and 28 threads. Base frequency is 3.1 GHz, with boost up to 4.4 GHz. L3 cache: 19.25 MB (total). L2 cache: 1 MB (per core). Built on 14 nm process technology. Socket: LGA2066. Thermal design power (TDP): 165 Watt. Memory support: DDR4-2666. Passmark benchmark score: 25,452 points. Launch price was $1,399.
Processing Power
The Core i9-12900HK packs 14 cores / 20 threads, matching the Core i9-7940X's 14 cores. Boost clocks reach 5 GHz on the Core i9-12900HK versus 4.4 GHz on the Core i9-7940X — a 12.8% clock advantage for the Core i9-12900HK (base: 2.5 GHz vs 3.1 GHz). The Core i9-12900HK uses the Alder Lake-H (2022) architecture (Intel 7 nm), while the Core i9-7940X uses Skylake (server) (2017−2018) (14 nm). In PassMark, the Core i9-12900HK scores 25,512 against the Core i9-7940X's 25,452 — a 0.2% lead for the Core i9-12900HK. L3 cache: 24 MB (total) on the Core i9-12900HK vs 19.25 MB (total) on the Core i9-7940X.
| Feature | Core i9-12900HK | Core i9-7940X |
|---|---|---|
| Cores / Threads | 14 / 20 | 14 / 28 |
| Boost Clock | 5 GHz+14% | 4.4 GHz |
| Base Clock | 2.5 GHz | 3.1 GHz+24% |
| L3 Cache | 24 MB (total)+25% | 19.25 MB (total) |
| L2 Cache | 1.25 MB (per core)+25% | 1 MB (per core) |
| Process | Intel 7 nm-50% | 14 nm |
| Architecture | Alder Lake-H (2022) | Skylake (server) (2017−2018) |
| PassMark | 25,512 | 25,452 |
| Cinebench R23 Multi | 18,197 | — |
| Geekbench 6 Single | 1,938 | — |
| Geekbench 6 Multi | 13,317 | — |
Memory & Platform
The Core i9-12900HK uses the FCBGA1744 socket (PCIe 5.0), while the Core i9-7940X uses LGA2066 (PCIe 3.0) — making them incompatible on the same motherboard.
| Feature | Core i9-12900HK | Core i9-7940X |
|---|---|---|
| Socket | FCBGA1744 | LGA2066 |
| PCIe Generation | PCIe 5.0+67% | PCIe 3.0 |
| Max RAM Speed | DDR5-4800, DDR4-3200 | — |
| Max RAM Capacity | 64 GB | — |
| RAM Channels | 2 | — |
| ECC Support | ❌ | — |
| PCIe Lanes | 28 | — |
Advanced Features
Virtualization: VT-x, VT-d, EPT (Core i9-12900HK) / not specified (Core i9-7940X). The Core i9-12900HK includes integrated graphics (Iris Xe Graphics G7 (96EUs)), while the Core i9-7940X requires a dedicated GPU. Primary use case: Core i9-12900HK targets Enthusiast Gaming Laptop. Direct competitor: Core i9-12900HK rivals Ryzen 9 6900HX.
| Feature | Core i9-12900HK | Core i9-7940X |
|---|---|---|
| Integrated GPU | Yes | — |
| IGPU Model | Iris Xe Graphics G7 (96EUs) | — |
| Unlocked | Yes | — |
| AVX-512 | No | — |
| Virtualization | VT-x, VT-d, EPT | — |
| Target Use | Enthusiast Gaming Laptop | — |
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