
Atom x7-Z8750 vs Core i7-660UM

Atom x7-Z8750

Core i7-660UM
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 Atom x7-Z8750 is positioned at rank 664 and the Core i7-660UM is on rank 1225, so the Atom x7-Z8750 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Atom x7-Z8750
Performance Per Dollar Core i7-660UM
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Atom x7-Z8750 | Core i7-660UM |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($317) |
| Longevity | 🛑 Legacy (Cherry Trail (2015−2016) / 14 nm) | 🛑 Legacy (Arrandale (2010−2011) / 32 nm) |
💎 Value Proposition
| Insight | Atom x7-Z8750 | Core i7-660UM |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ Higher cost ($317) |
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 Atom x7-Z8750 and Core i7-660UM

Atom x7-Z8750
The Atom x7-Z8750 is manufactured by Intel. It was released in 1 April 2016 (9 years ago). It is based on the Cherry Trail (2015−2016) architecture. It features 4 cores and 4 threads. Base frequency is 1.6 GHz, with boost up to 2.56 GHz. L3 cache: 0 kB. L2 cache: 2 MB. Built on 14 nm process technology. Socket: UTFCBGA1380. Thermal design power (TDP): 2 MB. Memory support: DDR3. Passmark benchmark score: 1,294 points. Launch price was $37.

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.
Processing Power
The Atom x7-Z8750 packs 4 cores / 4 threads, while the Core i7-660UM offers 2 cores / 4 threads — the Atom x7-Z8750 has 2 more cores. Boost clocks reach 2.56 GHz on the Atom x7-Z8750 versus 2.4 GHz on the Core i7-660UM — a 6.5% clock advantage for the Atom x7-Z8750 (base: 1.6 GHz vs 1.33 GHz). The Atom x7-Z8750 uses the Cherry Trail (2015−2016) architecture (14 nm), while the Core i7-660UM uses Arrandale (2010−2011) (32 nm). In PassMark, the Atom x7-Z8750 scores 1,294 against the Core i7-660UM's 1,279 — a 1.2% lead for the Atom x7-Z8750. L3 cache: 0 kB on the Atom x7-Z8750 vs 4 MB (total) on the Core i7-660UM.
| Feature | Atom x7-Z8750 | Core i7-660UM |
|---|---|---|
| Cores / Threads | 4 / 4+100% | 2 / 4 |
| Boost Clock | 2.56 GHz+7% | 2.4 GHz |
| Base Clock | 1.6 GHz+20% | 1.33 GHz |
| L3 Cache | 0 kB | 4 MB (total) |
| L2 Cache | 2 MB+700% | 256 kB (per core) |
| Process | 14 nm-56% | 32 nm |
| Architecture | Cherry Trail (2015−2016) | Arrandale (2010−2011) |
| PassMark | 1,294+1% | 1,279 |
| Geekbench 6 Single | — | 250 |
| Geekbench 6 Multi | — | 600 |
Memory & Platform
The Atom x7-Z8750 uses the UTFCBGA1380 socket (PCIe 3.0), while the Core i7-660UM uses BGA1288 (PCIe 2.0) — making them incompatible on the same motherboard. Both support up to LPDDR3-1600 memory speed. Both support up to 8 GB of RAM. Both feature 2-channel memory with ECC support. PCIe lanes: 2 (Atom x7-Z8750) vs 16 (Core i7-660UM) — the Core i7-660UM offers 14 more lanes for additional GPUs or NVMe drives. Chipset compatibility: Intel FC-UTBGA592 (Atom x7-Z8750) and PM55,HM55,QM57,HM57 (Core i7-660UM).
| Feature | Atom x7-Z8750 | Core i7-660UM |
|---|---|---|
| Socket | UTFCBGA1380 | BGA1288 |
| PCIe Generation | PCIe 3.0+50% | PCIe 2.0 |
| Max RAM Speed | LPDDR3-1600 | DDR3-1066 |
| Max RAM Capacity | 8 GB | 8 GB |
| RAM Channels | 2 | 2 |
| ECC Support | ❌ | ❌ |
| PCIe Lanes | 2 | 16+700% |
Advanced Features
Virtualization: not specified (Atom x7-Z8750) / VT-x, VT-d (Core i7-660UM). Both include integrated graphics — Intel HD Graphics (Cherry Trail) (Atom x7-Z8750) and HD Graphics (Core i7-660UM) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Core i7-660UM targets Budget.
| Feature | Atom x7-Z8750 | Core i7-660UM |
|---|---|---|
| Integrated GPU | Yes | Yes |
| IGPU Model | Intel HD Graphics (Cherry Trail) | HD Graphics |
| Unlocked | — | No |
| AVX-512 | — | No |
| Virtualization | — | VT-x, VT-d |
| Target Use | — | Budget |
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