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