Core i7-1255U vs Xeon E-2136
Core i7-1255U
Xeon E-2136
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 i7-1255U
Performance Per Dollar Xeon E-2136
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core i7-1255U | Xeon E-2136 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | Equivalent pricing | Equivalent pricing |
| Longevity | ✨ Modern (Alder Lake-U (2022) / Intel 7 nm) | ✨ Modern (Coffee Lake-S WS (2018−2019) / 14 nm) |
💎 Value Proposition
| Insight | Core i7-1255U | Xeon E-2136 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | Equivalent pricing | Equivalent pricing |
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 i7-1255U and Xeon E-2136
Core i7-1255U
The Core i7-1255U is manufactured by Intel. It was released in 23 February 2022 (3 years ago). It is based on the Alder Lake-U (2022) architecture. It features 10 cores and 12 threads. Base frequency is 1.7 GHz, with boost up to 4.7 GHz. L3 cache: 12 MB (total). L2 cache: 1.25 MB (per core). Built on Intel 7 nm process technology. Socket: FCBGA1744. Thermal design power (TDP): 15 Watt. Memory support: DDR4, DDR5. Passmark benchmark score: 13,128 points. Launch price was $149.
Xeon E-2136
The Xeon E-2136 is manufactured by Intel. It was released in 12 July 2018 (7 years ago). It is based on the Coffee Lake-S WS (2018−2019) architecture. It features 6 cores and 12 threads. Base frequency is 3.3 GHz, with boost up to 4.5 GHz. L3 cache: 12 MB (total). L2 cache: 256 kB (per core). Built on 14 nm process technology. Socket: LGA1151. Thermal design power (TDP): 80 Watt. Memory support: DDR4-2666. Passmark benchmark score: 13,150 points. Launch price was $289.
Processing Power
The Core i7-1255U packs 10 cores / 12 threads, while the Xeon E-2136 offers 6 cores / 12 threads — the Core i7-1255U has 4 more cores. Boost clocks reach 4.7 GHz on the Core i7-1255U versus 4.5 GHz on the Xeon E-2136 — a 4.3% clock advantage for the Core i7-1255U (base: 1.7 GHz vs 3.3 GHz). The Core i7-1255U uses the Alder Lake-U (2022) architecture (Intel 7 nm), while the Xeon E-2136 uses Coffee Lake-S WS (2018−2019) (14 nm). In PassMark, the Core i7-1255U scores 13,128 against the Xeon E-2136's 13,150 — a 0.2% lead for the Xeon E-2136. Both processors carry 12 MB (total) of L3 cache.
| Feature | Core i7-1255U | Xeon E-2136 |
|---|---|---|
| Cores / Threads | 10 / 12+67% | 6 / 12 |
| Boost Clock | 4.7 GHz+4% | 4.5 GHz |
| Base Clock | 1.7 GHz | 3.3 GHz+94% |
| L3 Cache | 12 MB (total) | 12 MB (total) |
| L2 Cache | 1.25 MB (per core)+400% | 256 kB (per core) |
| Process | Intel 7 nm-50% | 14 nm |
| Architecture | Alder Lake-U (2022) | Coffee Lake-S WS (2018−2019) |
| PassMark | 13,128 | 13,150 |
| Geekbench 6 Single | 1,809 | — |
Memory & Platform
The Core i7-1255U uses the FCBGA1744 socket (PCIe 5.0), while the Xeon E-2136 uses LGA1151 (PCIe 3.0) — making them incompatible on the same motherboard.
| Feature | Core i7-1255U | Xeon E-2136 |
|---|---|---|
| Socket | FCBGA1744 | LGA1151 |
| PCIe Generation | PCIe 5.0+67% | PCIe 3.0 |
| Max RAM Speed | DDR5-4800 | — |
| Max RAM Capacity | 64 GB | — |
| RAM Channels | 2 | — |
| ECC Support | ❌ | — |
| PCIe Lanes | 20 | — |
Advanced Features
Virtualization: VT-x, VT-d, EPT (Core i7-1255U) / not specified (Xeon E-2136). The Core i7-1255U includes integrated graphics (Iris Xe Graphics 96EU), while the Xeon E-2136 requires a dedicated GPU. Primary use case: Core i7-1255U targets Mainstream Laptop. Direct competitor: Core i7-1255U rivals Ryzen 7 6800U.
| Feature | Core i7-1255U | Xeon E-2136 |
|---|---|---|
| Integrated GPU | Yes | — |
| IGPU Model | Iris Xe Graphics 96EU | — |
| Unlocked | No | — |
| AVX-512 | No | — |
| Virtualization | VT-x, VT-d, EPT | — |
| Target Use | Mainstream Laptop | — |
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