
Celeron B800 vs Core M-5Y31

Celeron B800

Core M-5Y31
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 B800 is positioned at rank 810 and the Core M-5Y31 is on rank 1166, so the Celeron B800 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Celeron B800
Performance Per Dollar Core M-5Y31
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Celeron B800 | Core M-5Y31 |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ✅ More affordable ($5) | ⚠️ Higher cost ($30) |
| Longevity | 🛑 Legacy (Sandy Bridge (2011−2013) / 32 nm) | 🛑 Legacy (Broadwell-Y (2014) / 14 nm) |
💎 Value Proposition
| Insight | Celeron B800 | Core M-5Y31 |
|---|---|---|
| Cost Efficiency | ✅ Better overall value (+502%) | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($5) | ⚠️ Higher cost ($30) |
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 B800 and Core M-5Y31

Celeron B800
The Celeron B800 is manufactured by Intel. It was released in 19 June 2011 (14 years ago). It is based on the Sandy Bridge (2011−2013) architecture. It features 2 cores and 2 threads. Base frequency is 1.5 GHz, with boost up to 1.5 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: 1,910 points. Launch price was $80.

Core M-5Y31
The Core M-5Y31 is manufactured by Intel. It was released in 27 October 2014 (11 years ago). It is based on the Broadwell-Y (2014) architecture. It features 2 cores and 4 threads. Base frequency is 0.9 GHz, with boost up to 2.4 GHz. L3 cache: 4 MB (total). L2 cache: 256K (per core). Built on 14 nm process technology. Socket: FCBGA1234. Thermal design power (TDP): 4.5 Watt. Memory support: DDR3. Passmark benchmark score: 1,905 points. Launch price was $69.
Processing Power
The Celeron B800 packs 2 cores / 2 threads, matching the Core M-5Y31's 2 cores. Boost clocks reach 1.5 GHz on the Celeron B800 versus 2.4 GHz on the Core M-5Y31 — a 46.2% clock advantage for the Core M-5Y31 (base: 1.5 GHz vs 0.9 GHz). The Celeron B800 uses the Sandy Bridge (2011−2013) architecture (32 nm), while the Core M-5Y31 uses Broadwell-Y (2014) (14 nm). In PassMark, the Celeron B800 scores 1,910 against the Core M-5Y31's 1,905 — a 0.3% lead for the Celeron B800. L3 cache: 2 MB (total) on the Celeron B800 vs 4 MB (total) on the Core M-5Y31.
| Feature | Celeron B800 | Core M-5Y31 |
|---|---|---|
| Cores / Threads | 2 / 2 | 2 / 4 |
| Boost Clock | 1.5 GHz | 2.4 GHz+60% |
| Base Clock | 1.5 GHz+67% | 0.9 GHz |
| L3 Cache | 2 MB (total) | 4 MB (total)+100% |
| L2 Cache | 256K (per core) | 256K (per core) |
| Process | 32 nm | 14 nm-56% |
| Architecture | Sandy Bridge (2011−2013) | Broadwell-Y (2014) |
| PassMark | 1,910 | 1,905 |
Memory & Platform
The Celeron B800 uses the PGA988 socket (PCIe 2.0), while the Core M-5Y31 uses FCBGA1234 (PCIe 3.0) — making them incompatible on the same motherboard.
| Feature | Celeron B800 | Core M-5Y31 |
|---|---|---|
| Socket | PGA988 | FCBGA1234 |
| PCIe Generation | PCIe 2.0 | PCIe 3.0+50% |
| Max RAM Speed | DDR3-1333 | — |
| Max RAM Capacity | 16 GB | — |
| RAM Channels | 2 | — |
| ECC Support | ❌ | — |
| PCIe Lanes | 16 | — |
Advanced Features
Virtualization: VT-x (Celeron B800) / not specified (Core M-5Y31). The Celeron B800 includes integrated graphics (HD Graphics (Sandy Bridge)), while the Core M-5Y31 requires a dedicated GPU. Primary use case: Celeron B800 targets Budget. Direct competitor: Celeron B800 rivals Pentium 967.
| Feature | Celeron B800 | Core M-5Y31 |
|---|---|---|
| Integrated GPU | Yes | — |
| IGPU Model | HD Graphics (Sandy Bridge) | — |
| Unlocked | No | — |
| AVX-512 | No | — |
| Virtualization | VT-x | — |
| Target Use | Budget | — |
Value Analysis
The Celeron B800 launched at $80 MSRP, while the Core M-5Y31 debuted at $281. At current prices ($5 vs $30), the Celeron B800 is $25 cheaper. In terms of value (PassMark points per dollar), the Celeron B800 delivers 382.0 pts/$ vs 63.5 pts/$ for the Core M-5Y31 — making the Celeron B800 the 143% better value option.
| Feature | Celeron B800 | Core M-5Y31 |
|---|---|---|
| MSRP | $80-72% | $281 |
| Avg Price (30d) | $5-83% | $30 |
| Performance per Dollar | 382.0+502% | 63.5 |
| Release Date | 2011 | 2014 |
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