CPU
GPU
Celeron Dual-Core T3100
Core i7-640UM
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 Dual-Core T3100 is positioned at rank 711 and the Core i7-640UM is on rank 1229, so the Celeron Dual-Core T3100 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Celeron Dual-Core T3100
Performance Per Dollar Core i7-640UM
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Celeron Dual-Core T3100 | Core i7-640UM |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | Equivalent pricing | Equivalent pricing |
| Longevity | 🛑 Legacy (Penryn (2008−2011) / 45 nm) | 🛑 Legacy (Arrandale (2010−2011) / 32 nm) |
💎 Value Proposition
| Insight | Celeron Dual-Core T3100 | Core i7-640UM |
|---|---|---|
| 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 Celeron Dual-Core T3100 and Core i7-640UM
Celeron Dual-Core T3100
The Celeron Dual-Core T3100 is manufactured by Intel. It was released in 2007-01-01. It is based on the Penryn (2008−2011) architecture. It features 2 cores and 2 threads. Max frequency: 1.9 GHz. L2 cache: 1 MB. Built on 45 nm process technology. Socket: PGA478. Thermal design power (TDP): 1 MB. Passmark benchmark score: 1,174 points. Launch price was $69.
Core i7-640UM
The Core i7-640UM is manufactured by Intel. It was released in 7 January 2010 (15 years ago). It is based on the Arrandale (2010−2011) architecture. It features 2 cores and 4 threads. Base frequency is 1.2 GHz, with boost up to 2.27 GHz. L3 cache: 4 MB (total). L2 cache: 256 kB (per core). Built on 32 nm process technology. Socket: BGA1288. Thermal design power (TDP): 18 Watt. Memory support: DDR3-800. Passmark benchmark score: 1,168 points. Launch price was $305.
Processing Power
The Celeron Dual-Core T3100 packs 2 cores / 2 threads, matching the Core i7-640UM's 2 cores. Boost clocks reach 1.9 GHz on the Celeron Dual-Core T3100 versus 2.27 GHz on the Core i7-640UM — a 17.7% clock advantage for the Core i7-640UM. The Celeron Dual-Core T3100 uses the Penryn (2008−2011) architecture (45 nm), while the Core i7-640UM uses Arrandale (2010−2011) (32 nm). In PassMark, the Celeron Dual-Core T3100 scores 1,174 against the Core i7-640UM's 1,168 — a 0.5% lead for the Celeron Dual-Core T3100.
| Feature | Celeron Dual-Core T3100 | Core i7-640UM |
|---|---|---|
| Cores / Threads | 2 / 2 | 2 / 4 |
| Boost Clock | 1.9 GHz | 2.27 GHz+19% |
| Base Clock | — | 1.2 GHz |
| L3 Cache | — | 4 MB (total) |
| L2 Cache | 1 MB+300% | 256 kB (per core) |
| Process | 45 nm | 32 nm-29% |
| Architecture | Penryn (2008−2011) | Arrandale (2010−2011) |
| PassMark | 1,174 | 1,168 |
| Geekbench 6 Single | — | 226 |
| Geekbench 6 Multi | — | 590 |
Memory & Platform
The Celeron Dual-Core T3100 uses the PGA478 socket (PCIe 1.1), while the Core i7-640UM uses BGA1288 (PCIe 2.0) — making them incompatible on the same motherboard. Both support up to DDR3-800 memory speed. Both support up to 8 GB of RAM. Both feature 2-channel memory with ECC support. PCIe lanes: 0 (Celeron Dual-Core T3100) vs 16 (Core i7-640UM) — the Core i7-640UM offers 16 more lanes for additional GPUs or NVMe drives. Chipset compatibility: GL40,GM45,GS45 (Celeron Dual-Core T3100) and HM55,QM57 (Core i7-640UM).
| Feature | Celeron Dual-Core T3100 | Core i7-640UM |
|---|---|---|
| Socket | PGA478 | BGA1288 |
| PCIe Generation | PCIe 1.1 | PCIe 2.0+82% |
| Max RAM Speed | DDR3-800 | DDR3-1066 |
| Max RAM Capacity | 8 GB | 8 GB |
| RAM Channels | 2 | 2 |
| ECC Support | ❌ | ❌ |
| PCIe Lanes | 0 | 16 |
Advanced Features
Neither processor supports overclocking. Virtualization support: No (Celeron Dual-Core T3100) vs VT-x, VT-d (Core i7-640UM). The Core i7-640UM includes integrated graphics (Intel HD Graphics (Ironlake)), while the Celeron Dual-Core T3100 requires a dedicated GPU. Primary use case: Celeron Dual-Core T3100 targets Budget, Core i7-640UM targets Legacy Laptop. Direct competitor: Celeron Dual-Core T3100 rivals Pentium T4200; Core i7-640UM rivals Core 2 Duo SU9600.
| Feature | Celeron Dual-Core T3100 | Core i7-640UM |
|---|---|---|
| Integrated GPU | No | Yes |
| IGPU Model | — | Intel HD Graphics (Ironlake) |
| Unlocked | No | No |
| AVX-512 | No | No |
| Virtualization | No | VT-x, VT-d |
| Target Use | Budget | Legacy 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 Dual-Core T3100 and Core i7-640UM
