CPU
GPU
FX-8100
Pentium Gold G6400
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. The FX-8100 is positioned at rank #928 in our cost-efficiency ranking, representing a Lower cost-benefit for your build. Components placed above yours deliver better value for money.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar FX-8100
Performance Per Dollar
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | FX-8100 | Pentium Gold G6400 |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ⚠️ Higher cost ($50) | ✅ More affordable ($0) |
| Longevity | 🛑 Legacy (Zambezi (2011−2012) / 32 nm) | ✨ Modern (Comet Lake (2020−2025) / 14 nm) |
💎 Value Proposition
| Insight | FX-8100 | Pentium Gold G6400 |
|---|---|---|
| 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 Pentium Gold G6400
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.
Pentium Gold G6400
The Pentium Gold G6400 is manufactured by Intel. It was released in 2007-01-01. It is based on the Comet Lake (2020−2025) architecture. It features 2 cores and 4 threads. Base frequency is 4 GHz, with boost up to 4 GHz. L3 cache: 4 MB (total). L2 cache: 256K (per core). Built on 14 nm process technology. Socket: LGA1200. Thermal design power (TDP): 58 Watt. Memory support: DDR4-2666. Passmark benchmark score: 4,106 points. Launch price was $69.
Processing Power
The FX-8100 packs 8 cores / 8 threads, while the Pentium Gold G6400 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 Pentium Gold G6400 — a 7.8% clock advantage for the Pentium Gold G6400 (base: 2.8 GHz vs 4 GHz). The FX-8100 uses the Zambezi (2011−2012) architecture (32 nm), while the Pentium Gold G6400 uses Comet Lake (2020−2025) (14 nm). In PassMark, the FX-8100 scores 4,095 against the Pentium Gold G6400's 4,106 — a 0.3% lead for the Pentium Gold G6400. L3 cache: 8 MB (total) on the FX-8100 vs 4 MB (total) on the Pentium Gold G6400.
| Feature | FX-8100 | Pentium Gold G6400 |
|---|---|---|
| Cores / Threads | 8 / 8+300% | 2 / 4 |
| Boost Clock | 3.7 GHz | 4 GHz+8% |
| Base Clock | 2.8 GHz | 4 GHz+43% |
| L3 Cache | 8 MB (total)+100% | 4 MB (total) |
| L2 Cache | 8 MB+3100% | 256K (per core) |
| Process | 32 nm | 14 nm-56% |
| Architecture | Zambezi (2011−2012) | Comet Lake (2020−2025) |
| PassMark | 4,095 | 4,106 |
| Geekbench 6 Single | 455 | — |
| Geekbench 6 Multi | 1,621 | — |
Memory & Platform
The FX-8100 uses the AM3+ socket (PCIe 2.0), while the Pentium Gold G6400 uses LGA1200 (PCIe 3.0) — making them incompatible on the same motherboard.
| Feature | FX-8100 | Pentium Gold G6400 |
|---|---|---|
| Socket | AM3+ | LGA1200 |
| PCIe Generation | PCIe 2.0 | PCIe 3.0+50% |
| Max RAM Speed | DDR3-1866 | — |
| Max RAM Capacity | 16 GB | — |
| RAM Channels | 2 | — |
| ECC Support | ❌ | — |
| PCIe Lanes | 0 | — |
Advanced Features
Virtualization: AMD-V (FX-8100) / not specified (Pentium Gold G6400).
| Feature | FX-8100 | Pentium Gold G6400 |
|---|---|---|
| Integrated GPU | No | — |
| Unlocked | Yes | — |
| AVX-512 | No | — |
| Virtualization | AMD-V | — |
Top Performing CPUs
The most powerful cpus ranked by PassMark CPU Mark benchmark scores.
You May Also Compare
Similar CPU comparisons based on FX-8100 and Pentium Gold G6400
