Celeron 857 vs Celeron B820
Celeron 857
Celeron B820
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 857 is positioned at rank 1201 and the Celeron B820 is on rank 1109, so the Celeron B820 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Celeron 857
Performance Per Dollar Celeron B820
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Celeron 857 | Celeron B820 |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($10) | ⚠️ Higher cost ($15) |
| Longevity | 🛑 Legacy (Sandy Bridge (2011−2013) / 32 nm) | 🛑 Legacy (Sandy Bridge (2011−2013) / 32 nm) |
💎 Value Proposition
| Insight | Celeron 857 | Celeron B820 |
|---|---|---|
| Cost Efficiency | ✅ Better overall value (+38%) | ❌ 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 Celeron 857 and Celeron B820
Celeron 857
The Celeron 857 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 1.2 GHz, with boost up to 1.2 GHz. L3 cache: 2 MB (total). L2 cache: 256K (per core). Built on 32 nm process technology. Socket: BGA1023. Thermal design power (TDP): 17 Watt. Memory support: DDR3. Passmark benchmark score: 705 points. Launch price was $134.
Celeron B820
The Celeron B820 is manufactured by Intel. It was released in 1 July 2012 (13 years ago). It is based on the Sandy Bridge (2011−2013) architecture. It features 2 cores and 2 threads. Base frequency is 1.7 GHz, with boost up to 1.7 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: 765 points. Launch price was $86.
Processing Power
Both the Celeron 857 and Celeron B820 share an identical 2-core/2-thread configuration. Boost clocks reach 1.2 GHz on the Celeron 857 versus 1.7 GHz on the Celeron B820 — a 34.5% clock advantage for the Celeron B820 (base: 1.2 GHz vs 1.7 GHz). Both are built on the Sandy Bridge (2011−2013) architecture using a 32 nm process. In PassMark, the Celeron 857 scores 705 against the Celeron B820's 765 — a 8.2% lead for the Celeron B820. Both processors carry 2 MB (total) of L3 cache.
| Feature | Celeron 857 | Celeron B820 |
|---|---|---|
| Cores / Threads | 2 / 2 | 2 / 2 |
| Boost Clock | 1.2 GHz | 1.7 GHz+42% |
| Base Clock | 1.2 GHz | 1.7 GHz+42% |
| L3 Cache | 2 MB (total) | 2 MB (total) |
| L2 Cache | 256K (per core) | 256K (per core) |
| Process | 32 nm | 32 nm |
| Architecture | Sandy Bridge (2011−2013) | Sandy Bridge (2011−2013) |
| PassMark | 705 | 765+9% |
Memory & Platform
The Celeron 857 uses the BGA1023 socket (PCIe 2.0), while the Celeron B820 uses PGA988 (PCIe 2.0) — making them incompatible on the same motherboard. Both support up to DDR3-1333 memory speed. Both support up to 16 GB of RAM. Both feature 2-channel memory with ECC support. Both provide 16 PCIe lanes. Chipset compatibility: HM65,HM67 (Celeron 857) and HM65,HM67,QM67,QM77 (Celeron B820).
| Feature | Celeron 857 | Celeron B820 |
|---|---|---|
| Socket | BGA1023 | PGA988 |
| PCIe Generation | PCIe 2.0 | PCIe 2.0 |
| Max RAM Speed | DDR3-1333 | DDR3-1333 |
| Max RAM Capacity | 16 GB | 16 GB |
| RAM Channels | 2 | 2 |
| ECC Support | ❌ | ❌ |
| PCIe Lanes | 16 | 16 |
Advanced Features
Neither processor supports overclocking. Both support VT-x virtualization. Both include integrated graphics — HD Graphics (Sandy Bridge) (Celeron 857) and HD Graphics (Sandy Bridge) (Celeron B820) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Celeron 857 targets Budget, Celeron B820 targets Budget. Direct competitor: Celeron 857 rivals Pentium 967; Celeron B820 rivals Pentium 967.
| Feature | Celeron 857 | Celeron B820 |
|---|---|---|
| Integrated GPU | Yes | Yes |
| IGPU Model | HD Graphics (Sandy Bridge) | HD Graphics (Sandy Bridge) |
| Unlocked | No | No |
| AVX-512 | No | No |
| Virtualization | VT-x | VT-x |
| Target Use | Budget | Budget |
Value Analysis
The Celeron 857 launched at $134 MSRP, while the Celeron B820 debuted at $86. At current prices ($10 vs $15), the Celeron 857 is $5 cheaper. In terms of value (PassMark points per dollar), the Celeron 857 delivers 70.5 pts/$ vs 51.0 pts/$ for the Celeron B820 — making the Celeron 857 the 32.1% better value option.
| Feature | Celeron 857 | Celeron B820 |
|---|---|---|
| MSRP | $134 | $86-36% |
| Avg Price (30d) | $10-33% | $15 |
| Performance per Dollar | 70.5+38% | 51.0 |
| Release Date | 2011 | 2012 |
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