CPU
GPU
Core i7-940XM
Turion II Ultra M660
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 Turion II Ultra M660 is on rank 220, so the Turion II Ultra M660 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 Turion II Ultra M660
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core i7-940XM | Turion II Ultra M660 |
|---|---|---|
| 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 (Caspian (2009) / 45 nm) |
💎 Value Proposition
| Insight | Core i7-940XM | Turion II Ultra M660 |
|---|---|---|
| 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 Turion II Ultra M660
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.
Turion II Ultra M660
The Turion II Ultra M660 is manufactured by AMD. It was released in 2007-01-01. It is based on the Caspian (2009) architecture. It features 2 cores and 2 threads. Max frequency: 2.7 GHz. L2 cache: 2 MB. Built on 45 nm process technology. Socket: S1g3. Thermal design power (TDP): 2 MB. Memory support: DDR2. Passmark benchmark score: 2,278 points. Launch price was $69.
Processing Power
The Core i7-940XM packs 4 cores / 8 threads, while the Turion II Ultra M660 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 2.7 GHz on the Turion II Ultra M660 — a 20.9% clock advantage for the Core i7-940XM. The Core i7-940XM uses the Clarksfield (2009−2010) architecture (45 nm), while the Turion II Ultra M660 uses Caspian (2009) (45 nm). In PassMark, the Core i7-940XM scores 2,269 against the Turion II Ultra M660's 2,278 — a 0.4% lead for the Turion II Ultra M660.
| Feature | Core i7-940XM | Turion II Ultra M660 |
|---|---|---|
| Cores / Threads | 4 / 8+100% | 2 / 2 |
| Boost Clock | 3.33 GHz+23% | 2.7 GHz |
| Base Clock | 2.13 GHz | — |
| L3 Cache | 8 MB (total) | — |
| L2 Cache | 256 kB (per core) | 2 MB+700% |
| Process | 45 nm | 45 nm |
| Architecture | Clarksfield (2009−2010) | Caspian (2009) |
| PassMark | 2,269 | 2,278 |
Memory & Platform
The Core i7-940XM uses the PGA988 socket (PCIe 2.0), while the Turion II Ultra M660 uses S1g3 (PCIe 2.0) — making them incompatible on the same motherboard. Maximum memory speed reaches 1333 on the Core i7-940XM versus DDR2-800 on the Turion II Ultra M660 — the Core i7-940XM supports 199.4% faster memory, which can translate to measurable gains in memory-sensitive workloads. Both support up to 8 of RAM. Both feature 2-channel memory with ECC support. PCIe lanes: 16 (Core i7-940XM) vs 0 (Turion II Ultra M660) — the Core i7-940XM offers 16 more lanes for additional GPUs or NVMe drives.
| Feature | Core i7-940XM | Turion II Ultra M660 |
|---|---|---|
| Socket | PGA988 | S1g3 |
| PCIe Generation | PCIe 2.0 | PCIe 2.0 |
| Max RAM Speed | 1333+66550% | DDR2-800 |
| Max RAM Capacity | 8 | 8 GB+104857500% |
| RAM Channels | 2 | 2 |
| ECC Support | ❌ | ❌ |
| PCIe Lanes | 16 | 0 |
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 AMD-V (Turion II Ultra M660). Primary use case: Turion II Ultra M660 targets Mobile. Direct competitor: Core i7-940XM rivals Core i7-2720QM.
| Feature | Core i7-940XM | Turion II Ultra M660 |
|---|---|---|
| Integrated GPU | No | No |
| IGPU Model | None | — |
| Unlocked | Yes | No |
| AVX-512 | No | No |
| Virtualization | true | AMD-V |
| Target Use | — | Mobile |
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