Core i3-2100T vs Core i7-640LM
Core i3-2100T
Core i7-640LM
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 i3-2100T is positioned at rank 962 and the Core i7-640LM is on rank 333, so the Core i7-640LM offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Core i3-2100T
Performance Per Dollar Core i7-640LM
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core i3-2100T | Core i7-640LM |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ⚠️ Higher cost ($127) | ✅ More affordable ($0) |
| Longevity | 🛑 Legacy (Sandy Bridge (2011−2013) / 32 nm) | 🛑 Legacy (Arrandale (2010−2011) / 32 nm) |
💎 Value Proposition
| Insight | Core i3-2100T | Core i7-640LM |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ⚠️ Higher cost ($127) | ✅ 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 Core i3-2100T and Core i7-640LM
Core i3-2100T
The Core i3-2100T is manufactured by Intel. It was released in 20 February 2011 (14 years ago). It is based on the Sandy Bridge (2011−2013) architecture. It features 2 cores and 4 threads. Base frequency is 2.5 GHz, with boost up to 2.5 GHz. L3 cache: 3 MB (total). L2 cache: 256 kB (per core). Built on 32 nm process technology. Socket: LGA1155. Thermal design power (TDP): 35 Watt. Memory support: DDR3. Passmark benchmark score: 1,531 points. Launch price was $180.
Core i7-640LM
The Core i7-640LM 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 2.13 GHz, with boost up to 2.93 GHz. L3 cache: 4 MB (total). L2 cache: 256 kB (per core). Built on 32 nm process technology. Socket: BGA1288. Thermal design power (TDP): 25 Watt. Memory support: DDR3-800, DDR3-1066. Passmark benchmark score: 1,529 points. Launch price was $332.
Processing Power
Both the Core i3-2100T and Core i7-640LM share an identical 2-core/4-thread configuration. Boost clocks reach 2.5 GHz on the Core i3-2100T versus 2.93 GHz on the Core i7-640LM — a 15.8% clock advantage for the Core i7-640LM (base: 2.5 GHz vs 2.13 GHz). The Core i3-2100T uses the Sandy Bridge (2011−2013) architecture (32 nm), while the Core i7-640LM uses Arrandale (2010−2011) (32 nm). In PassMark, the Core i3-2100T scores 1,531 against the Core i7-640LM's 1,529 — a 0.1% lead for the Core i3-2100T. L3 cache: 3 MB (total) on the Core i3-2100T vs 4 MB (total) on the Core i7-640LM.
| Feature | Core i3-2100T | Core i7-640LM |
|---|---|---|
| Cores / Threads | 2 / 4 | 2 / 4 |
| Boost Clock | 2.5 GHz | 2.93 GHz+17% |
| Base Clock | 2.5 GHz+17% | 2.13 GHz |
| L3 Cache | 3 MB (total) | 4 MB (total)+33% |
| L2 Cache | 256 kB (per core) | 256 kB (per core) |
| Process | 32 nm | 32 nm |
| Architecture | Sandy Bridge (2011−2013) | Arrandale (2010−2011) |
| PassMark | 1,531 | 1,529 |
Memory & Platform
The Core i3-2100T uses the LGA1155 socket (PCIe 2.0), while the Core i7-640LM uses BGA1288 (PCIe 2.0) — making them incompatible on the same motherboard.
| Feature | Core i3-2100T | Core i7-640LM |
|---|---|---|
| Socket | LGA1155 | BGA1288 |
| PCIe Generation | PCIe 2.0 | PCIe 2.0 |
| Max RAM Speed | — | 1066 |
| Max RAM Capacity | — | 8 |
| RAM Channels | — | 2 |
| ECC Support | — | ❌ |
| PCIe Lanes | — | 16 |
Advanced Features
Virtualization: not specified (Core i3-2100T) / true (Core i7-640LM). The Core i7-640LM includes integrated graphics (Intel HD Graphics (Ironlake)), while the Core i3-2100T requires a dedicated GPU. Direct competitor: Core i7-640LM rivals Core 2 Duo SL9400.
| Feature | Core i3-2100T | Core i7-640LM |
|---|---|---|
| Integrated GPU | — | Yes |
| IGPU Model | — | Intel HD Graphics (Ironlake) |
| Unlocked | — | No |
| AVX-512 | — | No |
| Virtualization | — | true |
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