Core i5-8400T vs Xeon E3-1505M v6
Core i5-8400T
Xeon E3-1505M v6
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 i5-8400T
Performance Per Dollar Xeon E3-1505M v6
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core i5-8400T | Xeon E3-1505M v6 |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($179) | ⚠️ Higher cost ($434) |
| Longevity | ✨ Modern (Coffee Lake (2017−2019) / 14 nm) | ✨ Modern (Kaby Lake (2016−2019) / 14 nm) |
💎 Value Proposition
| Insight | Core i5-8400T | Xeon E3-1505M v6 |
|---|---|---|
| Cost Efficiency | ✅ Better overall value (+142%) | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($179) | ⚠️ Higher cost ($434) |
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 i5-8400T and Xeon E3-1505M v6
Core i5-8400T
The Core i5-8400T is manufactured by Intel. It was released in 2 April 2018 (7 years ago). It is based on the Coffee Lake (2017−2019) architecture. It features 6 cores and 6 threads. Base frequency is 1.7 GHz, with boost up to 3.3 GHz. L3 cache: 9 MB (total). L2 cache: 256K (per core). Built on 14 nm process technology. Socket: LGA1151. Thermal design power (TDP): 35 Watt. Memory support: DDR4-2666. Passmark benchmark score: 7,426 points. Launch price was $182.
Xeon E3-1505M v6
The Xeon E3-1505M v6 is manufactured by Intel. It was released in 3 January 2017 (8 years ago). It is based on the Kaby Lake (2016−2019) architecture. It features 4 cores and 8 threads. Base frequency is 3 GHz, with boost up to 4 GHz. L3 cache: 8 MB. L2 cache: 1 MB. Built on 14 nm process technology. Socket: BGA1440. Thermal design power (TDP): 45 Watt. Memory support: DDR4. Passmark benchmark score: 7,441 points. Launch price was $623.
Processing Power
The Core i5-8400T packs 6 cores / 6 threads, while the Xeon E3-1505M v6 offers 4 cores / 8 threads — the Core i5-8400T has 2 more cores. Boost clocks reach 3.3 GHz on the Core i5-8400T versus 4 GHz on the Xeon E3-1505M v6 — a 19.2% clock advantage for the Xeon E3-1505M v6 (base: 1.7 GHz vs 3 GHz). The Core i5-8400T uses the Coffee Lake (2017−2019) architecture (14 nm), while the Xeon E3-1505M v6 uses Kaby Lake (2016−2019) (14 nm). In PassMark, the Core i5-8400T scores 7,426 against the Xeon E3-1505M v6's 7,441 — a 0.2% lead for the Xeon E3-1505M v6. L3 cache: 9 MB (total) on the Core i5-8400T vs 8 MB on the Xeon E3-1505M v6.
| Feature | Core i5-8400T | Xeon E3-1505M v6 |
|---|---|---|
| Cores / Threads | 6 / 6+50% | 4 / 8 |
| Boost Clock | 3.3 GHz | 4 GHz+21% |
| Base Clock | 1.7 GHz | 3 GHz+76% |
| L3 Cache | 9 MB (total)+13% | 8 MB |
| L2 Cache | 256K (per core) | 1 MB+300% |
| Process | 14 nm | 14 nm |
| Architecture | Coffee Lake (2017−2019) | Kaby Lake (2016−2019) |
| PassMark | 7,426 | 7,441 |
| Cinebench R23 Multi | 3,737 | — |
| Geekbench 6 Single | 1,092 | — |
| Geekbench 6 Multi | 3,816 | — |
Memory & Platform
The Core i5-8400T uses the LGA1151 socket (PCIe 3.0), while the Xeon E3-1505M v6 uses BGA1440 (PCIe 3.0) — making them incompatible on the same motherboard.
| Feature | Core i5-8400T | Xeon E3-1505M v6 |
|---|---|---|
| Socket | LGA1151 | BGA1440 |
| PCIe Generation | PCIe 3.0 | PCIe 3.0 |
| Max RAM Speed | DDR4-2666 | — |
| Max RAM Capacity | 128 GB | — |
| RAM Channels | 2 | — |
| ECC Support | ❌ | — |
| PCIe Lanes | 16 | — |
Advanced Features
Virtualization: Yes (Core i5-8400T) / not specified (Xeon E3-1505M v6). The Core i5-8400T includes integrated graphics (UHD Graphics 630), while the Xeon E3-1505M v6 requires a dedicated GPU.
| Feature | Core i5-8400T | Xeon E3-1505M v6 |
|---|---|---|
| Integrated GPU | Yes | — |
| IGPU Model | UHD Graphics 630 | — |
| AVX-512 | No | — |
| Virtualization | Yes | — |
Value Analysis
The Core i5-8400T launched at $182 MSRP, while the Xeon E3-1505M v6 debuted at $434.
| Feature | Core i5-8400T | Xeon E3-1505M v6 |
|---|---|---|
| MSRP | $182-58% | $434 |
| Avg Price (30d) | $179 | — |
| Release Date | 2018 | 2017 |
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