
Celeron 4205U vs Pentium G640

Celeron 4205U

Pentium G640
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 Celeron 4205U is positioned at rank 152 and the Pentium G640 is on rank 763, so the Celeron 4205U offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Celeron 4205U
Performance Per Dollar Pentium G640
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Celeron 4205U | Pentium G640 |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($5) |
| Longevity | ✨ Modern (Whiskey Lake-U (2018−2019) / 14 nm) | 🛑 Legacy (Sandy Bridge (2011−2013) / 32 nm) |
💎 Value Proposition
| Insight | Celeron 4205U | Pentium G640 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ Higher cost ($5) |
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 Celeron 4205U and Pentium G640

Celeron 4205U
The Celeron 4205U 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 2 threads. Base frequency is 1.8 GHz, with boost up to 1.8 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: 1,350 points. Launch price was $107.

Pentium G640
The Pentium G640 is manufactured by Intel. It was released in 3 June 2012 (13 years ago). It is based on the Sandy Bridge (2011−2013) architecture. It features 2 cores and 2 threads. Base frequency is 2.8 GHz, with boost up to 2.8 GHz. L3 cache: 3 MB (total). L2 cache: 256 kB (per core). Built on 32 nm process technology. Socket: LGA1155. Thermal design power (TDP): 65 Watt. Memory support: DDR3. Passmark benchmark score: 1,369 points. Launch price was $179.
Processing Power
Both the Celeron 4205U and Pentium G640 share an identical 2-core/2-thread configuration. Boost clocks reach 1.8 GHz on the Celeron 4205U versus 2.8 GHz on the Pentium G640 — a 43.5% clock advantage for the Pentium G640 (base: 1.8 GHz vs 2.8 GHz). The Celeron 4205U uses the Whiskey Lake-U (2018−2019) architecture (14 nm), while the Pentium G640 uses Sandy Bridge (2011−2013) (32 nm). In PassMark, the Celeron 4205U scores 1,350 against the Pentium G640's 1,369 — a 1.4% lead for the Pentium G640. L3 cache: 2 MB (total) on the Celeron 4205U vs 3 MB (total) on the Pentium G640.
| Feature | Celeron 4205U | Pentium G640 |
|---|---|---|
| Cores / Threads | 2 / 2 | 2 / 2 |
| Boost Clock | 1.8 GHz | 2.8 GHz+56% |
| Base Clock | 1.8 GHz | 2.8 GHz+56% |
| L3 Cache | 2 MB (total) | 3 MB (total)+50% |
| L2 Cache | 256 kB (per core) | 256 kB (per core) |
| Process | 14 nm-56% | 32 nm |
| Architecture | Whiskey Lake-U (2018−2019) | Sandy Bridge (2011−2013) |
| PassMark | 1,350 | 1,369+1% |
| Geekbench 6 Single | 347 | — |
| Geekbench 6 Multi | 585 | — |
Memory & Platform
The Celeron 4205U uses the FCBGA1528 socket (PCIe 3.0), while the Pentium G640 uses LGA1155 (PCIe 2.0) — making them incompatible on the same motherboard.
| Feature | Celeron 4205U | Pentium G640 |
|---|---|---|
| Socket | FCBGA1528 | LGA1155 |
| PCIe Generation | PCIe 3.0+50% | PCIe 2.0 |
| Max RAM Speed | DDR4-2133 | — |
| Max RAM Capacity | 64 GB | — |
| RAM Channels | 2 | — |
| ECC Support | ❌ | — |
| PCIe Lanes | 12 | — |
Advanced Features
Virtualization: VT-x, VT-d (Celeron 4205U) / not specified (Pentium G640). The Celeron 4205U includes integrated graphics (UHD Graphics 610), while the Pentium G640 requires a dedicated GPU. Primary use case: Celeron 4205U targets Budget. Direct competitor: Celeron 4205U rivals Pentium Gold 4417U.
| Feature | Celeron 4205U | Pentium G640 |
|---|---|---|
| Integrated GPU | Yes | — |
| IGPU Model | UHD Graphics 610 | — |
| Unlocked | No | — |
| AVX-512 | No | — |
| Virtualization | VT-x, VT-d | — |
| Target Use | Budget | — |
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