CPU
GPU
Celeron N2820
Celeron B840
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 N2820 is positioned at rank 259 and the Celeron B840 is on rank 1028, so the Celeron N2820 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Celeron N2820
Performance Per Dollar Celeron B840
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Celeron N2820 | Celeron B840 |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($15) |
| Longevity | 🛑 Legacy (Bay Trail-M (2013−2014) / 22 nm) | 🛑 Legacy (Sandy Bridge (2011−2013) / 32 nm) |
💎 Value Proposition
| Insight | Celeron N2820 | Celeron B840 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ 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.
Path of Exile 2
Counter-Strike 2
Valorant
Technical Specifications
Side-by-side comparison of Celeron N2820 and Celeron B840
Celeron N2820
The Celeron N2820 is manufactured by Intel. It was released in 1 December 2013 (12 years ago). It is based on the Bay Trail-M (2013−2014) architecture. It features 2 cores and 2 threads. Base frequency is 2.13 GHz, with boost up to 2.39 GHz. L3 cache: 0 kB. L2 cache: 512K (per core). Built on 22 nm process technology. Socket: FCBGA1170. Thermal design power (TDP): 7.5 Watt. Memory support: DDR3. Passmark benchmark score: 1,061 points. Launch price was $107.
Celeron B840
The Celeron B840 is manufactured by Intel. It was released in 1 July 2011 (14 years ago). It is based on the Sandy Bridge (2011−2013) architecture. It features 2 cores and 2 threads. Base frequency is 1.9 GHz, with boost up to 1.9 GHz. L3 cache: 2 MB (total). L2 cache: 256K (per core). Built on 32 nm process technology. Socket: PGA988. Thermal design power (TDP): 35 Watt. Memory support: DDR3. Passmark benchmark score: 1,065 points. Launch price was $86.
Processing Power
Both the Celeron N2820 and Celeron B840 share an identical 2-core/2-thread configuration. Boost clocks reach 2.39 GHz on the Celeron N2820 versus 1.9 GHz on the Celeron B840 — a 22.8% clock advantage for the Celeron N2820 (base: 2.13 GHz vs 1.9 GHz). The Celeron N2820 uses the Bay Trail-M (2013−2014) architecture (22 nm), while the Celeron B840 uses Sandy Bridge (2011−2013) (32 nm). In PassMark, the Celeron N2820 scores 1,061 against the Celeron B840's 1,065 — a 0.4% lead for the Celeron B840. Geekbench 6 single-core — the metric most relevant to gaming — records 220 vs 450, a 68.7% lead for the Celeron B840 that directly translates to higher frame rates. Multi-core Geekbench: 400 vs 790 (65.5% advantage for the Celeron B840). L3 cache: 0 kB on the Celeron N2820 vs 2 MB (total) on the Celeron B840.
| Feature | Celeron N2820 | Celeron B840 |
|---|---|---|
| Cores / Threads | 2 / 2 | 2 / 2 |
| Boost Clock | 2.39 GHz+26% | 1.9 GHz |
| Base Clock | 2.13 GHz+12% | 1.9 GHz |
| L3 Cache | 0 kB | 2 MB (total) |
| L2 Cache | 512K (per core)+100% | 256K (per core) |
| Process | 22 nm-31% | 32 nm |
| Architecture | Bay Trail-M (2013−2014) | Sandy Bridge (2011−2013) |
| PassMark | 1,061 | 1,065 |
| Geekbench 6 Single | 220 | 450+105% |
| Geekbench 6 Multi | 400 | 790+98% |
Memory & Platform
The Celeron N2820 uses the FCBGA1170 socket (PCIe 2.0), while the Celeron B840 uses PGA988 (PCIe 2.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR3L-1066 on the Celeron N2820 versus 1333 on the Celeron B840 — the Celeron B840 supports 199.1% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Celeron B840 supports up to 16 of RAM compared to 8 GB — 66.7% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 4 (Celeron N2820) vs 16 (Celeron B840) — the Celeron B840 offers 12 more lanes for additional GPUs or NVMe drives. Chipset compatibility: SoC (Celeron N2820) and HM65,HM67,QM67 (Celeron B840).
| Feature | Celeron N2820 | Celeron B840 |
|---|---|---|
| Socket | FCBGA1170 | PGA988 |
| PCIe Generation | PCIe 2.0 | PCIe 2.0 |
| Max RAM Speed | DDR3L-1066 | 1333+44333% |
| Max RAM Capacity | 8 GB+52428700% | 16 |
| RAM Channels | 2 | 2 |
| ECC Support | ❌ | ❌ |
| PCIe Lanes | 4 | 16+300% |
Advanced Features
Neither processor supports overclocking. Virtualization support: VT-x (Celeron N2820) vs true (Celeron B840). Both include integrated graphics — Intel HD Graphics (Bay Trail) (Celeron N2820) and Intel HD Graphics (Sandy Bridge) (Celeron B840) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Celeron N2820 targets Netbook, Celeron B840 targets Budget. Direct competitor: Celeron N2820 rivals AMD A6-6310; Celeron B840 rivals Pentium B940.
| Feature | Celeron N2820 | Celeron B840 |
|---|---|---|
| Integrated GPU | Yes | Yes |
| IGPU Model | Intel HD Graphics (Bay Trail) | Intel HD Graphics (Sandy Bridge) |
| Unlocked | No | No |
| AVX-512 | No | No |
| Virtualization | VT-x | true |
| Target Use | Netbook | Budget |
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