Core i5-6400T vs Core i5-2450P
Core i5-6400T
Core i5-2450P
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. The Core i5-6400T is positioned at rank 747 and the Core i5-2450P is on rank 703, so the Core i5-2450P offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Core i5-6400T
Performance Per Dollar Core i5-2450P
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core i5-6400T | Core i5-2450P |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ⚠️ Higher cost ($40) | ✅ More affordable ($30) |
| Longevity | 🛑 Legacy (Skylake (2015−2016) / 14 nm) | 🛑 Legacy (Sandy Bridge (2011−2013) / 32 nm) |
💎 Value Proposition
| Insight | Core i5-6400T | Core i5-2450P |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ✅ Better overall value (+34%) |
| Upfront Cost | ⚠️ Higher cost ($40) | ✅ More affordable ($30) |
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 i5-6400T and Core i5-2450P
Core i5-6400T
The Core i5-6400T is manufactured by Intel. It was released in 1 September 2015 (10 years ago). It is based on the Skylake (2015−2016) architecture. It features 4 cores and 4 threads. Base frequency is 2.2 GHz, with boost up to 2.8 GHz. L3 cache: 6 MB. L2 cache: 1 MB. Built on 14 nm process technology. Socket: LGA1151. Thermal design power (TDP): 35 Watt. Memory support: DDR3, DDR4. Passmark benchmark score: 4,243 points. Launch price was $192.
Core i5-2450P
The Core i5-2450P is manufactured by Intel. It was released in Janeiro 2012 (13 years ago). It is based on the Sandy Bridge (2011−2013) architecture. It features 4 cores and 4 threads. Base frequency is 3.2 GHz, with boost up to 3.5 GHz. L3 cache: 6144 kB (total). L2 cache: 256 kB (per core). Built on 32 nm process technology. Socket: LGA1155. Thermal design power (TDP): 95 Watt. Memory support: DDR3. Passmark benchmark score: 4,273 points. Launch price was $215.
Processing Power
Both the Core i5-6400T and Core i5-2450P share an identical 4-core/4-thread configuration. Boost clocks reach 2.8 GHz on the Core i5-6400T versus 3.5 GHz on the Core i5-2450P — a 22.2% clock advantage for the Core i5-2450P (base: 2.2 GHz vs 3.2 GHz). The Core i5-6400T uses the Skylake (2015−2016) architecture (14 nm), while the Core i5-2450P uses Sandy Bridge (2011−2013) (32 nm). In PassMark, the Core i5-6400T scores 4,243 against the Core i5-2450P's 4,273 — a 0.7% lead for the Core i5-2450P. Geekbench 6 single-core — the metric most relevant to gaming — records 950 vs 545, a 54.2% lead for the Core i5-6400T that directly translates to higher frame rates. Multi-core Geekbench: 2,600 vs 1,850 (33.7% advantage for the Core i5-6400T). L3 cache: 6 MB on the Core i5-6400T vs 6144 kB (total) on the Core i5-2450P.
| Feature | Core i5-6400T | Core i5-2450P |
|---|---|---|
| Cores / Threads | 4 / 4 | 4 / 4 |
| Boost Clock | 2.8 GHz | 3.5 GHz+25% |
| Base Clock | 2.2 GHz | 3.2 GHz+45% |
| L3 Cache | 6 MB | 6144 kB (total) |
| L2 Cache | 1 MB+300% | 256 kB (per core) |
| Process | 14 nm-56% | 32 nm |
| Architecture | Skylake (2015−2016) | Sandy Bridge (2011−2013) |
| PassMark | 4,243 | 4,273 |
| Cinebench R23 Multi | 2,200 | — |
| Geekbench 6 Single | 950+74% | 545 |
| Geekbench 6 Multi | 2,600+41% | 1,850 |
Memory & Platform
The Core i5-6400T uses the LGA1151 socket (PCIe 3.0), while the Core i5-2450P uses LGA1155 (PCIe 2.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-2133 on the Core i5-6400T versus DDR3-1333 on the Core i5-2450P — the Core i5-6400T supports 28.6% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Core i5-6400T supports up to 64 GB of RAM compared to 32 GB — 66.7% more capacity for professional workloads. Both feature 2-channel memory with ECC support. Both provide 16 PCIe lanes. Chipset compatibility: H110,B150,H170,Z170,Z270 (Core i5-6400T) and H61,P67,Z68,H67,Q67 (Core i5-2450P).
| Feature | Core i5-6400T | Core i5-2450P |
|---|---|---|
| Socket | LGA1151 | LGA1155 |
| PCIe Generation | PCIe 3.0+50% | PCIe 2.0 |
| Max RAM Speed | DDR4-2133+33% | DDR3-1333 |
| Max RAM Capacity | 64 GB+100% | 32 GB |
| RAM Channels | 2 | 2 |
| ECC Support | ❌ | ❌ |
| PCIe Lanes | 16 | 16 |
Advanced Features
Virtualization support: VT-x, VT-d (Core i5-6400T) vs Yes (Core i5-2450P). The Core i5-6400T includes integrated graphics (HD 530), while the Core i5-2450P requires a dedicated GPU. Primary use case: Core i5-6400T targets Budget. Direct competitor: Core i5-6400T rivals Core i3-7100.
| Feature | Core i5-6400T | Core i5-2450P |
|---|---|---|
| Integrated GPU | Yes | No |
| IGPU Model | HD 530 | — |
| Unlocked | No | — |
| AVX-512 | No | No |
| Virtualization | VT-x, VT-d | Yes |
| Target Use | Budget | — |
Value Analysis
The Core i5-6400T launched at $192 MSRP, while the Core i5-2450P debuted at $177. At current prices ($40 vs $30), the Core i5-2450P is $10 cheaper. In terms of value (PassMark points per dollar), the Core i5-6400T delivers 106.1 pts/$ vs 142.4 pts/$ for the Core i5-2450P — making the Core i5-2450P the 29.3% better value option.
| Feature | Core i5-6400T | Core i5-2450P |
|---|---|---|
| MSRP | $192 | $177-8% |
| Avg Price (30d) | $40 | $30-25% |
| Performance per Dollar | 106.1 | 142.4+34% |
| Release Date | 2015 | 2012 |
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