Core i9-11900T vs Core i5-12400
Core i9-11900T
Core i5-12400
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 i9-11900T
Performance Per Dollar Core i5-12400
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core i9-11900T | Core i5-12400 |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ⚠️ Higher cost ($413) | ✅ More affordable ($195) |
| Longevity | ✨ Modern (Rocket Lake (2021) / 14 nm) | ✨ Modern (Alder Lake-S (2022) / Intel 7 nm) |
💎 Value Proposition
| Insight | Core i9-11900T | Core i5-12400 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ✅ Better overall value (+114%) |
| Upfront Cost | ⚠️ Higher cost ($413) | ✅ More affordable ($195) |
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 i9-11900T and Core i5-12400
Core i9-11900T
The Core i9-11900T is manufactured by Intel. It was released in 16 March 2021 (4 years ago). It is based on the Rocket Lake (2021) architecture. It features 8 cores and 16 threads. Base frequency is 1.5 GHz, with boost up to 4.9 GHz. L3 cache: 16 MB (total). L2 cache: 256K (per core). Built on 14 nm process technology. Socket: LGA1200. Thermal design power (TDP): 35 Watt. Memory support: DDR4-3200. Passmark benchmark score: 18,620 points. Launch price was $299.
Core i5-12400
The Core i5-12400 is manufactured by Intel. It was released in 4 January 2022 (3 years ago). It is based on the Alder Lake-S (2022) architecture. It features 6 cores and 12 threads. Base frequency is 2.5 GHz, with boost up to 4.4 GHz. L3 cache: 18 MB (total). L2 cache: 1.25 MB (per core). Built on Intel 7 nm process technology. Socket: LGA1700. Thermal design power (TDP): 65 Watt. Memory support: DDR5-4800, DDR4-3200. Passmark benchmark score: 18,794 points. Launch price was $299.
Processing Power
The Core i9-11900T packs 8 cores / 16 threads, while the Core i5-12400 offers 6 cores / 12 threads — the Core i9-11900T has 2 more cores. Boost clocks reach 4.9 GHz on the Core i9-11900T versus 4.4 GHz on the Core i5-12400 — a 10.8% clock advantage for the Core i9-11900T (base: 1.5 GHz vs 2.5 GHz). The Core i9-11900T uses the Rocket Lake (2021) architecture (14 nm), while the Core i5-12400 uses Alder Lake-S (2022) (Intel 7 nm). In PassMark, the Core i9-11900T scores 18,620 against the Core i5-12400's 18,794 — a 0.9% lead for the Core i5-12400. Geekbench 6 single-core — the metric most relevant to gaming — records 2,100 vs 2,381, a 12.5% lead for the Core i5-12400 that directly translates to higher frame rates. Multi-core Geekbench: 9,200 vs 10,632 (14.4% advantage for the Core i5-12400). L3 cache: 16 MB (total) on the Core i9-11900T vs 18 MB (total) on the Core i5-12400.
| Feature | Core i9-11900T | Core i5-12400 |
|---|---|---|
| Cores / Threads | 8 / 16+33% | 6 / 12 |
| Boost Clock | 4.9 GHz+11% | 4.4 GHz |
| Base Clock | 1.5 GHz | 2.5 GHz+67% |
| L3 Cache | 16 MB (total) | 18 MB (total)+13% |
| L2 Cache | 256K (per core) | 1.25 MB (per core)+400% |
| Process | 14 nm | Intel 7 nm-50% |
| Architecture | Rocket Lake (2021) | Alder Lake-S (2022) |
| PassMark | 18,620 | 18,794 |
| Cinebench R23 Multi | — | 12,400 |
| Geekbench 6 Single | 2,100 | 2,381+13% |
| Geekbench 6 Multi | 9,200 | 10,632+16% |
Memory & Platform
The Core i9-11900T uses the LGA1200 socket (PCIe 3.0), while the Core i5-12400 uses LGA1700 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-3200 on the Core i9-11900T versus DDR5-4800, DDR4-3200 on the Core i5-12400 — the Core i5-12400 supports 22.2% faster memory, which can translate to measurable gains in memory-sensitive workloads. Both support up to 128 GB of RAM. Both feature 2-channel memory with ECC support. Both provide 20 PCIe lanes. Chipset compatibility: H510,B560,H570,Z590 (Core i9-11900T) and H610,B660,H670,Z690,B760,H770,Z790 (Core i5-12400).
| Feature | Core i9-11900T | Core i5-12400 |
|---|---|---|
| Socket | LGA1200 | LGA1700 |
| PCIe Generation | PCIe 3.0 | PCIe 5.0+67% |
| Max RAM Speed | DDR4-3200 | DDR5-4800, DDR4-3200+25% |
| Max RAM Capacity | 128 GB | 128 GB |
| RAM Channels | 2 | 2 |
| ECC Support | ❌ | ❌ |
| PCIe Lanes | 20 | 20 |
Advanced Features
Virtualization support: VT-x, VT-d (Core i9-11900T) vs VT-x, VT-d, EPT (Core i5-12400). Both include integrated graphics — Intel UHD Graphics 750 (Core i9-11900T) and UHD Graphics 730 (Core i5-12400) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Core i9-11900T targets Low Power High Perf Desktop, Core i5-12400 targets Gaming Performance/Value. Direct competitor: Core i5-12400 rivals Ryzen 5 5600.
| Feature | Core i9-11900T | Core i5-12400 |
|---|---|---|
| Integrated GPU | Yes | Yes |
| IGPU Model | Intel UHD Graphics 750 | UHD Graphics 730 |
| Unlocked | No | — |
| AVX-512 | Yes | — |
| Virtualization | VT-x, VT-d | VT-x, VT-d, EPT |
| Target Use | Low Power High Perf Desktop | Gaming Performance/Value |
Value Analysis
The Core i9-11900T launched at $439 MSRP, while the Core i5-12400 debuted at $209. At current prices ($413 vs $195), the Core i5-12400 is $218 cheaper. In terms of value (PassMark points per dollar), the Core i9-11900T delivers 45.1 pts/$ vs 96.4 pts/$ for the Core i5-12400 — making the Core i5-12400 the 72.5% better value option.
| Feature | Core i9-11900T | Core i5-12400 |
|---|---|---|
| MSRP | $439 | $209-52% |
| Avg Price (30d) | $413 | $195-53% |
| Performance per Dollar | 45.1 | 96.4+114% |
| Release Date | 2021 | 2022 |
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