Core i7-660UM vs C-50
Core i7-660UM
C-50
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 i7-660UM is positioned at rank 1225 and the C-50 is on rank 777, so the C-50 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Core i7-660UM
Performance Per Dollar C-50
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core i7-660UM | C-50 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ⚠️ Higher cost ($317) | ✅ More affordable ($0) |
| Longevity | 🛑 Legacy (Arrandale (2010−2011) / 32 nm) | 🛑 Legacy (Ontario (2011−2012) / 40 nm) |
💎 Value Proposition
| Insight | Core i7-660UM | C-50 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ⚠️ Higher cost ($317) | ✅ 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 i7-660UM and C-50
Core i7-660UM
The Core i7-660UM is manufactured by Intel. It was released in 24 May 2010 (15 years ago). It is based on the Arrandale (2010−2011) architecture. It features 2 cores and 4 threads. Base frequency is 1.33 GHz, with boost up to 2.4 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: 1,279 points. Launch price was $317.
C-50
The C-50 is manufactured by AMD. It was released in 4 January 2011 (14 years ago). It is based on the Ontario (2011−2012) architecture. It features 2 cores and 2 threads. Max frequency: 1 GHz. L3 cache: 0 kB. L2 cache: 512K (per core). Built on 40 nm process technology. Socket: FT1. Thermal design power (TDP): 9 Watt. Memory support: DDR3 Single-channel. Passmark benchmark score: 1,282 points. Launch price was $69.
Processing Power
The Core i7-660UM packs 2 cores / 4 threads, matching the C-50's 2 cores. Boost clocks reach 2.4 GHz on the Core i7-660UM versus 1 GHz on the C-50 — a 82.4% clock advantage for the Core i7-660UM. The Core i7-660UM uses the Arrandale (2010−2011) architecture (32 nm), while the C-50 uses Ontario (2011−2012) (40 nm). In PassMark, the Core i7-660UM scores 1,279 against the C-50's 1,282 — a 0.2% lead for the C-50. L3 cache: 4 MB (total) on the Core i7-660UM vs 0 kB on the C-50.
| Feature | Core i7-660UM | C-50 |
|---|---|---|
| Cores / Threads | 2 / 4 | 2 / 2 |
| Boost Clock | 2.4 GHz+140% | 1 GHz |
| Base Clock | 1.33 GHz | — |
| L3 Cache | 4 MB (total) | 0 kB |
| L2 Cache | 256 kB (per core) | 512K (per core)+100% |
| Process | 32 nm-20% | 40 nm |
| Architecture | Arrandale (2010−2011) | Ontario (2011−2012) |
| PassMark | 1,279 | 1,282 |
| Geekbench 6 Single | 250 | — |
| Geekbench 6 Multi | 600 | — |
Memory & Platform
The Core i7-660UM uses the BGA1288 socket (PCIe 2.0), while the C-50 uses FT1 (PCIe 2.0) — making them incompatible on the same motherboard. Both support up to DDR3-1066 memory speed. The Core i7-660UM supports up to 8 GB of RAM compared to 4 GB — 66.7% more capacity for professional workloads. Memory channels: 2 (Core i7-660UM) vs 1 (C-50). PCIe lanes: 16 (Core i7-660UM) vs 4 (C-50) — the Core i7-660UM offers 12 more lanes for additional GPUs or NVMe drives. Chipset compatibility: PM55,HM55,QM57,HM57 (Core i7-660UM) and AMD BGA413 (C-50).
| Feature | Core i7-660UM | C-50 |
|---|---|---|
| Socket | BGA1288 | FT1 |
| PCIe Generation | PCIe 2.0 | PCIe 2.0 |
| Max RAM Speed | DDR3-1066 | DDR3-1066 |
| Max RAM Capacity | 8 GB+100% | 4 GB |
| RAM Channels | 2+100% | 1 |
| ECC Support | ❌ | ❌ |
| PCIe Lanes | 16+300% | 4 |
Advanced Features
Virtualization: VT-x, VT-d (Core i7-660UM) / not specified (C-50). Both include integrated graphics — HD Graphics (Core i7-660UM) and Radeon HD 6250 (C-50) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Core i7-660UM targets Budget.
| Feature | Core i7-660UM | C-50 |
|---|---|---|
| Integrated GPU | Yes | Yes |
| IGPU Model | HD Graphics | Radeon HD 6250 |
| Unlocked | No | — |
| AVX-512 | No | — |
| Virtualization | VT-x, VT-d | — |
| Target Use | Budget | — |
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