CPU
GPU
Pentium Gold 5405U
Athlon II X4 645
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 Pentium Gold 5405U is positioned at rank 476 and the Athlon II X4 645 is on rank 819, so the Pentium Gold 5405U offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Pentium Gold 5405U
Performance Per Dollar Athlon II X4 645
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Pentium Gold 5405U | Athlon II X4 645 |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($20) |
| Longevity | ✨ Modern (Whiskey Lake-U (2018−2019) / 14 nm) | 🛑 Legacy (Propus (2009−2011) / 45 nm) |
💎 Value Proposition
| Insight | Pentium Gold 5405U | Athlon II X4 645 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ Higher cost ($20) |
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 Pentium Gold 5405U and Athlon II X4 645
Pentium Gold 5405U
The Pentium Gold 5405U is manufactured by Intel. It was released in 23 January 2019 (6 years ago). It is based on the Whiskey Lake-U (2018−2019) architecture. It features 2 cores and 4 threads. Base frequency is 2.3 GHz, with boost up to 2.3 GHz. L3 cache: 2 MB (total). L2 cache: 256 kB (per core). Built on 14 nm process technology. Socket: FCBGA1528. Thermal design power (TDP): 15 Watt. Memory support: DDR3, DDR4. Passmark benchmark score: 2,357 points. Launch price was $161.
Athlon II X4 645
The Athlon II X4 645 is manufactured by AMD. It was released in 21 September 2010 (15 years ago). It is based on the Propus (2009−2011) architecture. It features 4 cores and 4 threads. Base frequency is 3.1 GHz, with boost up to 3.1 GHz. L3 cache: 0 kB. L2 cache: 512 kB (per core). Built on 45 nm process technology. Socket: AM3. Thermal design power (TDP): 95 Watt. Memory support: DDR3. Passmark benchmark score: 2,375 points. Launch price was $80.
Processing Power
The Pentium Gold 5405U packs 2 cores / 4 threads, while the Athlon II X4 645 offers 4 cores / 4 threads — the Athlon II X4 645 has 2 more cores. Boost clocks reach 2.3 GHz on the Pentium Gold 5405U versus 3.1 GHz on the Athlon II X4 645 — a 29.6% clock advantage for the Athlon II X4 645 (base: 2.3 GHz vs 3.1 GHz). The Pentium Gold 5405U uses the Whiskey Lake-U (2018−2019) architecture (14 nm), while the Athlon II X4 645 uses Propus (2009−2011) (45 nm). In PassMark, the Pentium Gold 5405U scores 2,357 against the Athlon II X4 645's 2,375 — a 0.8% lead for the Athlon II X4 645. L3 cache: 2 MB (total) on the Pentium Gold 5405U vs 0 kB on the Athlon II X4 645.
| Feature | Pentium Gold 5405U | Athlon II X4 645 |
|---|---|---|
| Cores / Threads | 2 / 4 | 4 / 4+100% |
| Boost Clock | 2.3 GHz | 3.1 GHz+35% |
| Base Clock | 2.3 GHz | 3.1 GHz+35% |
| L3 Cache | 2 MB (total) | 0 kB |
| L2 Cache | 256 kB (per core) | 512 kB (per core)+100% |
| Process | 14 nm-69% | 45 nm |
| Architecture | Whiskey Lake-U (2018−2019) | Propus (2009−2011) |
| PassMark | 2,357 | 2,375 |
| Cinebench R23 Multi | — | 1,374 |
| Geekbench 6 Single | — | 399 |
| Geekbench 6 Multi | — | 1,374 |
Memory & Platform
The Pentium Gold 5405U uses the FCBGA1528 socket (PCIe 3.0), while the Athlon II X4 645 uses AM3 (PCIe 2.0) — making them incompatible on the same motherboard.
| Feature | Pentium Gold 5405U | Athlon II X4 645 |
|---|---|---|
| Socket | FCBGA1528 | AM3 |
| PCIe Generation | PCIe 3.0+50% | PCIe 2.0 |
| Max RAM Speed | — | DDR3-1333 |
| Max RAM Capacity | — | 16 GB |
| RAM Channels | — | 2 |
| ECC Support | — | ❌ |
| PCIe Lanes | — | 16 |
Advanced Features
Virtualization: not specified (Pentium Gold 5405U) / Yes (Athlon II X4 645). Primary use case: Athlon II X4 645 targets Desktop.
| Feature | Pentium Gold 5405U | Athlon II X4 645 |
|---|---|---|
| Integrated GPU | — | No |
| AVX-512 | — | No |
| Virtualization | — | Yes |
| Target Use | — | Desktop |
Top Performing CPUs
The most powerful cpus ranked by PassMark CPU Mark benchmark scores.
You May Also Compare
Similar CPU comparisons based on Pentium Gold 5405U and Athlon II X4 645
