Core i9-9900T vs Core i5-12400F
Core i9-9900T
Core i5-12400F
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 i9-9900T
Performance Per Dollar Core i5-12400F
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core i9-9900T | Core i5-12400F |
|---|---|---|
| Gaming | Balanced gaming performance | Balanced gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ⚠️ Higher cost ($215) | ✅ More affordable ($110) |
| Longevity | ✨ Modern (Coffee Lake-R (2018−2019) / 14 nm) | ✨ Modern (Alder Lake-S (2022) / Intel 7 nm) |
💎 Value Proposition
| Insight | Core i9-9900T | Core i5-12400F |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ✅ Better overall value (+189%) |
| Upfront Cost | ⚠️ Higher cost ($215) | ✅ More affordable ($110) |
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 i9-9900T and Core i5-12400F
Core i9-9900T
The Core i9-9900T is manufactured by Intel. It was released in 23 April 2019 (6 years ago). It is based on the Coffee Lake-R (2018−2019) architecture. It features 8 cores and 16 threads. Base frequency is 2.1 GHz, with boost up to 4.4 GHz. L3 cache: 16 MB (total). L2 cache: 256K (per core). Built on 14 nm process technology. Socket: LGA1151. Thermal design power (TDP): 35 Watt. Memory support: DDR4. Passmark benchmark score: 13,208 points. Launch price was $439.
Core i5-12400F
The Core i5-12400F 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: 19,532 points. Launch price was $180.
Processing Power
The Core i9-9900T packs 8 cores / 16 threads, while the Core i5-12400F offers 6 cores / 12 threads — the Core i9-9900T has 2 more cores. Boost clocks reach 4.4 GHz on the Core i9-9900T versus 4.4 GHz on the Core i5-12400F — identical boost frequencies (base: 2.1 GHz vs 2.5 GHz). The Core i9-9900T uses the Coffee Lake-R (2018−2019) architecture (14 nm), while the Core i5-12400F uses Alder Lake-S (2022) (Intel 7 nm). In PassMark, the Core i9-9900T scores 13,208 against the Core i5-12400F's 19,532 — a 38.6% lead for the Core i5-12400F. L3 cache: 16 MB (total) on the Core i9-9900T vs 18 MB (total) on the Core i5-12400F.
| Feature | Core i9-9900T | Core i5-12400F |
|---|---|---|
| Cores / Threads | 8 / 16+33% | 6 / 12 |
| Boost Clock | 4.4 GHz | 4.4 GHz |
| Base Clock | 2.1 GHz | 2.5 GHz+19% |
| 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 | Coffee Lake-R (2018−2019) | Alder Lake-S (2022) |
| PassMark | 13,208 | 19,532+48% |
| Cinebench R23 Multi | — | 12,380 |
| Geekbench 6 Single | — | 1,700 |
| Geekbench 6 Multi | — | 657 |
Memory & Platform
The Core i9-9900T uses the LGA1151 socket (PCIe 3.0), while the Core i5-12400F uses LGA1700 (PCIe 3.0) — making them incompatible on the same motherboard.
| Feature | Core i9-9900T | Core i5-12400F |
|---|---|---|
| Socket | LGA1151 | LGA1700 |
| PCIe Generation | PCIe 3.0 | PCIe 3.0 |
| Max RAM Speed | — | DDR5-4800, DDR4-3200 |
| Max RAM Capacity | — | 128 GB |
| RAM Channels | — | 2 |
| ECC Support | — | ❌ |
| PCIe Lanes | — | 20 |
Advanced Features
Virtualization: not specified (Core i9-9900T) / VT-x, VT-d, EPT (Core i5-12400F). Primary use case: Core i5-12400F targets Gaming Performance/Value. Direct competitor: Core i5-12400F rivals Ryzen 5 5600.
| Feature | Core i9-9900T | Core i5-12400F |
|---|---|---|
| Integrated GPU | — | No |
| Virtualization | — | VT-x, VT-d, EPT |
| Target Use | — | Gaming Performance/Value |
Value Analysis
The Core i9-9900T launched at $423 MSRP, while the Core i5-12400F debuted at $174. At current prices ($215 vs $110), the Core i5-12400F is $105 cheaper. In terms of value (PassMark points per dollar), the Core i9-9900T delivers 61.4 pts/$ vs 177.6 pts/$ for the Core i5-12400F — making the Core i5-12400F the 97.2% better value option.
| Feature | Core i9-9900T | Core i5-12400F |
|---|---|---|
| MSRP | $423 | $174-59% |
| Avg Price (30d) | $215 | $110-49% |
| Performance per Dollar | 61.4 | 177.6+189% |
| Release Date | 2019 | 2022 |
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