FX-8100 vs Core i7-7660U
FX-8100
Core i7-7660U
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 FX-8100 is positioned at rank 928 and the Core i7-7660U is on rank 550, so the Core i7-7660U offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar FX-8100
Performance Per Dollar Core i7-7660U
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | FX-8100 | Core i7-7660U |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ⚠️ Higher cost ($50) | ✅ More affordable ($0) |
| Longevity | 🛑 Legacy (Zambezi (2011−2012) / 32 nm) | ✨ Modern (Kaby Lake (2016−2019) / 14 nm) |
💎 Value Proposition
| Insight | FX-8100 | Core i7-7660U |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ⚠️ Higher cost ($50) | ✅ 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 FX-8100 and Core i7-7660U
FX-8100
The FX-8100 is manufactured by AMD. It was released in 12 October 2011 (14 years ago). It is based on the Zambezi (2011−2012) architecture. It features 8 cores and 8 threads. Base frequency is 2.8 GHz, with boost up to 3.7 GHz. L3 cache: 8 MB (total). L2 cache: 8 MB. Built on 32 nm process technology. Socket: AM3+. Thermal design power (TDP): 95 Watt. Memory support: DDR3. Passmark benchmark score: 4,095 points. Launch price was $69.
Core i7-7660U
The Core i7-7660U is manufactured by Intel. It was released in 3 January 2017 (8 years ago). It is based on the Kaby Lake (2016−2019) architecture. It features 2 cores and 4 threads. Base frequency is 2.5 GHz, with boost up to 4 GHz. L3 cache: 4 MB. L2 cache: 512 kB. Built on 14 nm process technology. Socket: BGA1356. Thermal design power (TDP): 15 Watt. Memory support: DDR4. Passmark benchmark score: 4,059 points. Launch price was $415.
Processing Power
The FX-8100 packs 8 cores / 8 threads, while the Core i7-7660U offers 2 cores / 4 threads — the FX-8100 has 6 more cores. Boost clocks reach 3.7 GHz on the FX-8100 versus 4 GHz on the Core i7-7660U — a 7.8% clock advantage for the Core i7-7660U (base: 2.8 GHz vs 2.5 GHz). The FX-8100 uses the Zambezi (2011−2012) architecture (32 nm), while the Core i7-7660U uses Kaby Lake (2016−2019) (14 nm). In PassMark, the FX-8100 scores 4,095 against the Core i7-7660U's 4,059 — a 0.9% lead for the FX-8100. Geekbench 6 single-core — the metric most relevant to gaming — records 455 vs 1,150, a 86.6% lead for the Core i7-7660U that directly translates to higher frame rates. Multi-core Geekbench: 1,621 vs 2,285 (34% advantage for the Core i7-7660U). L3 cache: 8 MB (total) on the FX-8100 vs 4 MB on the Core i7-7660U.
| Feature | FX-8100 | Core i7-7660U |
|---|---|---|
| Cores / Threads | 8 / 8+300% | 2 / 4 |
| Boost Clock | 3.7 GHz | 4 GHz+8% |
| Base Clock | 2.8 GHz+12% | 2.5 GHz |
| L3 Cache | 8 MB (total)+100% | 4 MB |
| L2 Cache | 8 MB+1500% | 512 kB |
| Process | 32 nm | 14 nm-56% |
| Architecture | Zambezi (2011−2012) | Kaby Lake (2016−2019) |
| PassMark | 4,095 | 4,059 |
| Cinebench R23 Multi | — | 1,759 |
| Geekbench 6 Single | 455 | 1,150+153% |
| Geekbench 6 Multi | 1,621 | 2,285+41% |
Memory & Platform
The FX-8100 uses the AM3+ socket (PCIe 2.0), while the Core i7-7660U uses BGA1356 (PCIe 3.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR3-1866 on the FX-8100 versus DDR4-2133 on the Core i7-7660U — the Core i7-7660U supports 28.6% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Core i7-7660U supports up to 32 GB of RAM compared to 16 GB — 66.7% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 0 (FX-8100) vs 12 (Core i7-7660U) — the Core i7-7660U offers 12 more lanes for additional GPUs or NVMe drives. Chipset compatibility: AMD 990FX,AMD 970 (FX-8100) and SoC (Core i7-7660U).
| Feature | FX-8100 | Core i7-7660U |
|---|---|---|
| Socket | AM3+ | BGA1356 |
| PCIe Generation | PCIe 2.0 | PCIe 3.0+50% |
| Max RAM Speed | DDR3-1866 | DDR4-2133+33% |
| Max RAM Capacity | 16 GB | 32 GB+100% |
| RAM Channels | 2 | 2 |
| ECC Support | ❌ | ❌ |
| PCIe Lanes | 0 | 12 |
Advanced Features
Only the FX-8100 has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Virtualization support: AMD-V (FX-8100) vs VT-x, VT-d (Core i7-7660U). The Core i7-7660U includes integrated graphics (Iris Plus 640), while the FX-8100 requires a dedicated GPU. Primary use case: Core i7-7660U targets Productivity. Direct competitor: Core i7-7660U rivals Core i5-8250U.
| Feature | FX-8100 | Core i7-7660U |
|---|---|---|
| Integrated GPU | No | Yes |
| IGPU Model | — | Iris Plus 640 |
| Unlocked | Yes | No |
| AVX-512 | No | No |
| Virtualization | AMD-V | VT-x, VT-d |
| Target Use | — | Productivity |
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