Athlon II M300 vs Celeron G1820
Athlon II M300
Celeron G1820
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 Athlon II M300 is positioned at rank 940 and the Celeron G1820 is on rank 895, so the Celeron G1820 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Athlon II M300
Performance Per Dollar Celeron G1820
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Athlon II M300 | Celeron G1820 |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ✅ More affordable ($10) | ⚠️ Higher cost ($15) |
| Longevity | 🛑 Legacy (Caspian (2009) / 45 nm) | 🛑 Legacy (Haswell (2013−2015) / 22 nm) |
💎 Value Proposition
| Insight | Athlon II M300 | Celeron G1820 |
|---|---|---|
| Cost Efficiency | ✅ Better overall value (+50%) | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($10) | ⚠️ Higher cost ($15) |
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 Athlon II M300 and Celeron G1820
Athlon II M300
The Athlon II M300 is manufactured by AMD. It was released in 2009-01-01. It is based on the Caspian (2009) architecture. It features 2 cores and 2 threads. Max frequency: 2 GHz. L2 cache: 1 MB. Built on 45 nm process technology. Socket: S1g3. Thermal design power (TDP): 1 MB. Memory support: DDR2. Passmark benchmark score: 1,700 points. Launch price was $149.
Celeron G1820
The Celeron G1820 is manufactured by Intel. It was released in 1 December 2013 (12 years ago). It is based on the Haswell (2013−2015) architecture. It features 2 cores and 2 threads. Base frequency is 2.7 GHz, with boost up to 2.7 GHz. L3 cache: 2 MB. L2 cache: 256 kB (per core). Built on 22 nm process technology. Socket: LGA1150. Thermal design power (TDP): 53 Watt. Memory support: DDR3. Passmark benchmark score: 1,696 points. Launch price was $110.
Processing Power
Both the Athlon II M300 and Celeron G1820 share an identical 2-core/2-thread configuration. Boost clocks reach 2 GHz on the Athlon II M300 versus 2.7 GHz on the Celeron G1820 — a 29.8% clock advantage for the Celeron G1820. The Athlon II M300 uses the Caspian (2009) architecture (45 nm), while the Celeron G1820 uses Haswell (2013−2015) (22 nm). In PassMark, the Athlon II M300 scores 1,700 against the Celeron G1820's 1,696 — a 0.2% lead for the Athlon II M300.
| Feature | Athlon II M300 | Celeron G1820 |
|---|---|---|
| Cores / Threads | 2 / 2 | 2 / 2 |
| Boost Clock | 2 GHz | 2.7 GHz+35% |
| Base Clock | — | 2.7 GHz |
| L3 Cache | — | 2 MB |
| L2 Cache | 1 MB+300% | 256 kB (per core) |
| Process | 45 nm | 22 nm-51% |
| Architecture | Caspian (2009) | Haswell (2013−2015) |
| PassMark | 1,700 | 1,696 |
| Geekbench 6 Single | — | 496 |
| Geekbench 6 Multi | — | 910 |
Memory & Platform
The Athlon II M300 uses the S1g3 socket (PCIe 2.0), while the Celeron G1820 uses LGA1150 (PCIe 3.0) — making them incompatible on the same motherboard. Maximum memory speed reaches 800 on the Athlon II M300 versus DDR3-1333 on the Celeron G1820 — the Athlon II M300 supports 198.5% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Celeron G1820 supports up to 32 GB of RAM compared to 8 — 120% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 0 (Athlon II M300) vs 16 (Celeron G1820) — the Celeron G1820 offers 16 more lanes for additional GPUs or NVMe drives. Chipset compatibility: S1g3 (Athlon II M300) and H81,B85,H87,Z87,H97,Z97 (Celeron G1820).
| Feature | Athlon II M300 | Celeron G1820 |
|---|---|---|
| Socket | S1g3 | LGA1150 |
| PCIe Generation | PCIe 2.0 | PCIe 3.0+50% |
| Max RAM Speed | 800+26567% | DDR3-1333 |
| Max RAM Capacity | 8 | 32 GB+419430300% |
| RAM Channels | 2 | 2 |
| ECC Support | ❌ | ✅ |
| PCIe Lanes | 0 | 16 |
Advanced Features
Neither processor supports overclocking. Virtualization support: true (Athlon II M300) vs VT-x (Celeron G1820). The Celeron G1820 includes integrated graphics (HD Graphics (Haswell)), while the Athlon II M300 requires a dedicated GPU. Primary use case: Celeron G1820 targets Budget. Direct competitor: Athlon II M300 rivals Core 2 Duo T6400; Celeron G1820 rivals Pentium G3220.
| Feature | Athlon II M300 | Celeron G1820 |
|---|---|---|
| Integrated GPU | No | Yes |
| IGPU Model | None | HD Graphics (Haswell) |
| Unlocked | No | No |
| AVX-512 | No | No |
| Virtualization | true | VT-x |
| Target Use | — | Budget |
Value Analysis
The Athlon II M300 launched at $100 MSRP, while the Celeron G1820 debuted at $110. At current prices ($10 vs $15), the Athlon II M300 is $5 cheaper. In terms of value (PassMark points per dollar), the Athlon II M300 delivers 170.0 pts/$ vs 113.1 pts/$ for the Celeron G1820 — making the Athlon II M300 the 40.2% better value option.
| Feature | Athlon II M300 | Celeron G1820 |
|---|---|---|
| MSRP | $100-9% | $110 |
| Avg Price (30d) | $10-33% | $15 |
| Performance per Dollar | 170.0+50% | 113.1 |
| Release Date | 2009 | 2013 |
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