Celeron G3900E vs Core i7-840QM
Celeron G3900E
Core i7-840QM
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 Celeron G3900E is positioned at rank 816 and the Core i7-840QM is on rank 812, so the Core i7-840QM offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Celeron G3900E
Performance Per Dollar Core i7-840QM
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Celeron G3900E | Core i7-840QM |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ⚠️ Higher cost ($35) | ✅ More affordable ($0) |
| Longevity | 🛑 Legacy (Skylake (2015−2016) / 14 nm) | 🛑 Legacy (Clarksfield (2009−2010) / 45 nm) |
💎 Value Proposition
| Insight | Celeron G3900E | Core i7-840QM |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ⚠️ Higher cost ($35) | ✅ More affordable ($0) |
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 Celeron G3900E and Core i7-840QM
Celeron G3900E
The Celeron G3900E is manufactured by Intel. It was released in 2 January 2016 (9 years ago). It is based on the Skylake (2015−2016) architecture. It features 2 cores and 2 threads. Max frequency: 2.4 GHz. L3 cache: 2 MB. L2 cache: 512 kB. Built on 14 nm process technology. Thermal design power (TDP): 35 Watt. Memory support: LPDDR3-1866. Passmark benchmark score: 2,034 points. Launch price was $107.
Core i7-840QM
The Core i7-840QM is manufactured by Intel. It was released in 20 June 2010 (15 years ago). It is based on the Clarksfield (2009−2010) architecture. It features 4 cores and 8 threads. Base frequency is 1.86 GHz, with boost up to 3.2 GHz. L3 cache: 8 MB (total). L2 cache: 256 kB (per core). Built on 45 nm process technology. Socket: PGA988. Thermal design power (TDP): 45 Watt. Memory support: DDR3. Passmark benchmark score: 2,025 points. Launch price was $568.
Processing Power
The Celeron G3900E packs 2 cores / 2 threads, while the Core i7-840QM offers 4 cores / 8 threads — the Core i7-840QM has 2 more cores. Boost clocks reach 2.4 GHz on the Celeron G3900E versus 3.2 GHz on the Core i7-840QM — a 28.6% clock advantage for the Core i7-840QM. The Celeron G3900E uses the Skylake (2015−2016) architecture (14 nm), while the Core i7-840QM uses Clarksfield (2009−2010) (45 nm). In PassMark, the Celeron G3900E scores 2,034 against the Core i7-840QM's 2,025 — a 0.4% lead for the Celeron G3900E. Geekbench 6 single-core — the metric most relevant to gaming — records 699 vs 390, a 56.7% lead for the Celeron G3900E that directly translates to higher frame rates. Multi-core Geekbench: 948 vs 1,050 (10.2% advantage for the Core i7-840QM). L3 cache: 2 MB on the Celeron G3900E vs 8 MB (total) on the Core i7-840QM.
| Feature | Celeron G3900E | Core i7-840QM |
|---|---|---|
| Cores / Threads | 2 / 2 | 4 / 8+100% |
| Boost Clock | 2.4 GHz | 3.2 GHz+33% |
| Base Clock | — | 1.86 GHz |
| L3 Cache | 2 MB | 8 MB (total)+300% |
| L2 Cache | 512 kB+100% | 256 kB (per core) |
| Process | 14 nm-69% | 45 nm |
| Architecture | Skylake (2015−2016) | Clarksfield (2009−2010) |
| PassMark | 2,034 | 2,025 |
| Geekbench 6 Single | 699+79% | 390 |
| Geekbench 6 Multi | 948 | 1,050+11% |
Memory & Platform
Maximum memory speed reaches DDR4-2133 on the Celeron G3900E versus DDR3-1333 on the Core i7-840QM — the Celeron G3900E supports 28.6% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Celeron G3900E supports up to 64 GB of RAM compared to 8 GB — 155.6% more capacity for professional workloads. Both feature 2-channel memory with ECC support. Both provide 16 PCIe lanes. Chipset compatibility: H110,B150,H170,Z170 (Celeron G3900E) and PM55,HM55,QM57,HM57 (Core i7-840QM).
| Feature | Celeron G3900E | Core i7-840QM |
|---|---|---|
| Socket | — | PGA988 |
| PCIe Generation | PCIe 3.0+50% | PCIe 2.0 |
| Max RAM Speed | DDR4-2133+33% | DDR3-1333 |
| Max RAM Capacity | 64 GB+700% | 8 GB |
| RAM Channels | 2 | 2 |
| ECC Support | ✅ | ❌ |
| PCIe Lanes | 16 | 16 |
Advanced Features
Neither processor supports overclocking. Virtualization support: VT-x (Celeron G3900E) vs VT-x, VT-d (Core i7-840QM). The Celeron G3900E includes integrated graphics (HD Graphics 510), while the Core i7-840QM requires a dedicated GPU. Primary use case: Celeron G3900E targets Budget, Core i7-840QM targets Laptop. Direct competitor: Celeron G3900E rivals Pentium G4400.
| Feature | Celeron G3900E | Core i7-840QM |
|---|---|---|
| Integrated GPU | Yes | No |
| IGPU Model | HD Graphics 510 | — |
| Unlocked | No | No |
| AVX-512 | No | No |
| Virtualization | VT-x | VT-x, VT-d |
| Target Use | Budget | Laptop |
Top Performing CPUs
The most powerful cpus ranked by PassMark CPU Mark benchmark scores.
You May Also Compare
Similar CPU comparisons based on Celeron G3900E and Core i7-840QM
