Core i7-940XM vs Core 2 Duo T6570
Core i7-940XM
Core 2 Duo T6570
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 i7-940XM is positioned at rank 1237 and the Core 2 Duo T6570 is on rank 222, so the Core 2 Duo T6570 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Core i7-940XM
Performance Per Dollar Core 2 Duo T6570
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core i7-940XM | Core 2 Duo T6570 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ⚠️ Higher cost ($1,096) | ✅ More affordable ($0) |
| Longevity | 🛑 Legacy (Clarksfield (2009−2010) / 45 nm) | 🛑 Legacy (Penryn (2008−2011) / 45 nm) |
💎 Value Proposition
| Insight | Core i7-940XM | Core 2 Duo T6570 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ⚠️ Higher cost ($1,096) | ✅ 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 i7-940XM and Core 2 Duo T6570
Core i7-940XM
The Core i7-940XM 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 2.13 GHz, with boost up to 3.33 GHz. L3 cache: 8 MB (total). L2 cache: 256 kB (per core). Built on 45 nm process technology. Socket: PGA988. Thermal design power (TDP): 55 Watt. Memory support: DDR3-1066, DDR3-1333. Passmark benchmark score: 2,269 points. Launch price was $1,096.
Core 2 Duo T6570
The Core 2 Duo T6570 is manufactured by Intel. It was released in 2008-01-01. It is based on the Penryn (2008−2011) architecture. It features 2 cores and 2 threads. Base frequency is 2.1 GHz, with boost up to 2.1 GHz. L3 cache: 2 MB. L2 cache: 2 MB. Built on 45 nm process technology. Socket: PGA478. Thermal design power (TDP): 35 Watt. Passmark benchmark score: 2,274 points. Launch price was $249.
Processing Power
The Core i7-940XM packs 4 cores / 8 threads, while the Core 2 Duo T6570 offers 2 cores / 2 threads — the Core i7-940XM has 2 more cores. Boost clocks reach 3.33 GHz on the Core i7-940XM versus 2.1 GHz on the Core 2 Duo T6570 — a 45.3% clock advantage for the Core i7-940XM (base: 2.13 GHz vs 2.1 GHz). The Core i7-940XM uses the Clarksfield (2009−2010) architecture (45 nm), while the Core 2 Duo T6570 uses Penryn (2008−2011) (45 nm). In PassMark, the Core i7-940XM scores 2,269 against the Core 2 Duo T6570's 2,274 — a 0.2% lead for the Core 2 Duo T6570. L3 cache: 8 MB (total) on the Core i7-940XM vs 2 MB on the Core 2 Duo T6570.
| Feature | Core i7-940XM | Core 2 Duo T6570 |
|---|---|---|
| Cores / Threads | 4 / 8+100% | 2 / 2 |
| Boost Clock | 3.33 GHz+59% | 2.1 GHz |
| Base Clock | 2.13 GHz+1% | 2.1 GHz |
| L3 Cache | 8 MB (total)+300% | 2 MB |
| L2 Cache | 256 kB (per core) | 2 MB+700% |
| Process | 45 nm | 45 nm |
| Architecture | Clarksfield (2009−2010) | Penryn (2008−2011) |
| PassMark | 2,269 | 2,274 |
| Geekbench 6 Single | — | 246 |
Memory & Platform
The Core i7-940XM uses the PGA988 socket (PCIe 2.0), while the Core 2 Duo T6570 uses PGA478 (PCIe 1.1) — making them incompatible on the same motherboard. Maximum memory speed reaches 1333 on the Core i7-940XM versus DDR3-1066 on the Core 2 Duo T6570 — the Core i7-940XM supports 199.1% faster memory, which can translate to measurable gains in memory-sensitive workloads. Both feature 2-channel memory with ECC support. Chipset compatibility: PM55,HM55,QM57 (Core i7-940XM) and GM45,PM45,GL40 (Core 2 Duo T6570).
| Feature | Core i7-940XM | Core 2 Duo T6570 |
|---|---|---|
| Socket | PGA988 | PGA478 |
| PCIe Generation | PCIe 2.0+82% | PCIe 1.1 |
| Max RAM Speed | 1333+44333% | DDR3-1066 |
| Max RAM Capacity | 8 | — |
| RAM Channels | 2 | 2 |
| ECC Support | ❌ | ❌ |
| PCIe Lanes | 16 | — |
Advanced Features
Only the Core i7-940XM has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Virtualization support: true (Core i7-940XM) vs VT-x (Core 2 Duo T6570). Primary use case: Core 2 Duo T6570 targets Budget. Direct competitor: Core i7-940XM rivals Core i7-2720QM; Core 2 Duo T6570 rivals Athlon Silver 3050U.
| Feature | Core i7-940XM | Core 2 Duo T6570 |
|---|---|---|
| Integrated GPU | No | No |
| IGPU Model | None | — |
| Unlocked | Yes | No |
| AVX-512 | No | No |
| Virtualization | true | VT-x |
| Target Use | — | Budget |
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