Phenom II X3 P820 vs Celeron G1840T
Phenom II X3 P820
Celeron G1840T
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 Phenom II X3 P820 is positioned at rank 419 and the Celeron G1840T is on rank 525, so the Phenom II X3 P820 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Phenom II X3 P820
Performance Per Dollar Celeron G1840T
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Phenom II X3 P820 | Celeron G1840T |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($10) |
| Longevity | 🛑 Legacy (Champlain (2010−2011) / 45 nm) | 🛑 Legacy (Haswell (2013−2015) / 22 nm) |
💎 Value Proposition
| Insight | Phenom II X3 P820 | Celeron G1840T |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ Higher cost ($10) |
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 Phenom II X3 P820 and Celeron G1840T
Phenom II X3 P820
The Phenom II X3 P820 is manufactured by AMD. It was released in 2009-01-01. It is based on the Champlain (2010−2011) architecture. It features 3 cores and 3 threads. Max frequency: 1.8 GHz. L2 cache: 1.5 MB. Built on 45 nm process technology. Socket: S1. Thermal design power (TDP): 1.5 MB. Memory support: DDR3. Passmark benchmark score: 1,560 points. Launch price was $149.
Celeron G1840T
The Celeron G1840T is manufactured by Intel. It was released in 2007-01-01. It is based on the Haswell (2013−2015) architecture. It features 2 cores and 2 threads. Base frequency is 2.5 GHz, with boost up to 2.5 GHz. L3 cache: 3 MB (total). L2 cache: 256 kB (per core). Built on 22 nm process technology. Socket: LGA1150. Thermal design power (TDP): 35 Watt. Memory support: DDR3. Passmark benchmark score: 1,576 points. Launch price was $69.
Processing Power
The Phenom II X3 P820 packs 3 cores / 3 threads, while the Celeron G1840T offers 2 cores / 2 threads — the Phenom II X3 P820 has 1 more core. Boost clocks reach 1.8 GHz on the Phenom II X3 P820 versus 2.5 GHz on the Celeron G1840T — a 32.6% clock advantage for the Celeron G1840T. The Phenom II X3 P820 uses the Champlain (2010−2011) architecture (45 nm), while the Celeron G1840T uses Haswell (2013−2015) (22 nm). In PassMark, the Phenom II X3 P820 scores 1,560 against the Celeron G1840T's 1,576 — a 1% lead for the Celeron G1840T.
| Feature | Phenom II X3 P820 | Celeron G1840T |
|---|---|---|
| Cores / Threads | 3 / 3+50% | 2 / 2 |
| Boost Clock | 1.8 GHz | 2.5 GHz+39% |
| Base Clock | — | 2.5 GHz |
| L3 Cache | — | 3 MB (total) |
| L2 Cache | 1.5 MB+500% | 256 kB (per core) |
| Process | 45 nm | 22 nm-51% |
| Architecture | Champlain (2010−2011) | Haswell (2013−2015) |
| PassMark | 1,560 | 1,576+1% |
Memory & Platform
The Phenom II X3 P820 uses the S1 socket (PCIe 2.0), while the Celeron G1840T uses LGA1150 (PCIe 3.0) — making them incompatible on the same motherboard.
| Feature | Phenom II X3 P820 | Celeron G1840T |
|---|---|---|
| Socket | S1 | LGA1150 |
| PCIe Generation | PCIe 2.0 | PCIe 3.0+50% |
| Max RAM Speed | — | DDR3-1333 |
| Max RAM Capacity | — | 32 GB |
| RAM Channels | — | 2 |
| ECC Support | — | ✅ |
| PCIe Lanes | — | 16 |
Advanced Features
Virtualization: not specified (Phenom II X3 P820) / VT-x (Celeron G1840T). The Celeron G1840T includes integrated graphics (HD Graphics (Haswell)), while the Phenom II X3 P820 requires a dedicated GPU. Primary use case: Celeron G1840T targets Budget. Direct competitor: Celeron G1840T rivals Pentium G3240T.
| Feature | Phenom II X3 P820 | Celeron G1840T |
|---|---|---|
| Integrated GPU | — | Yes |
| IGPU Model | — | HD Graphics (Haswell) |
| Unlocked | — | No |
| AVX-512 | — | No |
| Virtualization | — | VT-x |
| Target Use | — | Budget |
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