
Core M-5Y31 vs Celeron B800

Core M-5Y31

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

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.

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.
Processing Power
The Core M-5Y31 packs 2 cores / 4 threads, matching the Celeron B800's 2 cores. Boost clocks reach 2.4 GHz on the Core M-5Y31 versus 1.5 GHz on the Celeron B800 — a 46.2% clock advantage for the Core M-5Y31 (base: 0.9 GHz vs 1.5 GHz). The Core M-5Y31 uses the Broadwell-Y (2014) architecture (14 nm), while the Celeron B800 uses Sandy Bridge (2011−2013) (32 nm). In PassMark, the Core M-5Y31 scores 1,905 against the Celeron B800's 1,910 — a 0.3% lead for the Celeron B800. L3 cache: 4 MB (total) on the Core M-5Y31 vs 2 MB (total) on the Celeron B800.
| Feature | Core M-5Y31 | Celeron B800 |
|---|---|---|
| Cores / Threads | 2 / 4 | 2 / 2 |
| Boost Clock | 2.4 GHz+60% | 1.5 GHz |
| Base Clock | 0.9 GHz | 1.5 GHz+67% |
| L3 Cache | 4 MB (total)+100% | 2 MB (total) |
| L2 Cache | 256K (per core) | 256K (per core) |
| Process | 14 nm-56% | 32 nm |
| Architecture | Broadwell-Y (2014) | Sandy Bridge (2011−2013) |
| PassMark | 1,905 | 1,910 |
Memory & Platform
The Core M-5Y31 uses the FCBGA1234 socket (PCIe 3.0), while the Celeron B800 uses PGA988 (PCIe 2.0) — making them incompatible on the same motherboard.
| Feature | Core M-5Y31 | Celeron B800 |
|---|---|---|
| Socket | FCBGA1234 | PGA988 |
| PCIe Generation | PCIe 3.0+50% | PCIe 2.0 |
| Max RAM Speed | — | DDR3-1333 |
| Max RAM Capacity | — | 16 GB |
| RAM Channels | — | 2 |
| ECC Support | — | ❌ |
| PCIe Lanes | — | 16 |
Advanced Features
Virtualization: not specified (Core M-5Y31) / VT-x (Celeron B800). 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 | Core M-5Y31 | Celeron B800 |
|---|---|---|
| Integrated GPU | — | Yes |
| IGPU Model | — | HD Graphics (Sandy Bridge) |
| Unlocked | — | No |
| AVX-512 | — | No |
| Virtualization | — | VT-x |
| Target Use | — | Budget |
Value Analysis
The Core M-5Y31 launched at $281 MSRP, while the Celeron B800 debuted at $80. At current prices ($30 vs $5), the Celeron B800 is $25 cheaper. In terms of value (PassMark points per dollar), the Core M-5Y31 delivers 63.5 pts/$ vs 382.0 pts/$ for the Celeron B800 — making the Celeron B800 the 143% better value option.
| Feature | Core M-5Y31 | Celeron B800 |
|---|---|---|
| MSRP | $281 | $80-72% |
| Avg Price (30d) | $30 | $5-83% |
| Performance per Dollar | 63.5 | 382.0+502% |
| Release Date | 2014 | 2011 |
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