Celeron M 575 vs Celeron B800
Celeron M 575
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 Celeron M 575 is positioned at rank 827 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 Celeron M 575
Performance Per Dollar Celeron B800
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Celeron M 575 | Celeron B800 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ⚠️ Higher cost ($12) | ✅ More affordable ($5) |
| Longevity | 🛑 Legacy (Merom (2006−2008) / 65 nm) | 🛑 Legacy (Sandy Bridge (2011−2013) / 32 nm) |
💎 Value Proposition
| Insight | Celeron M 575 | Celeron B800 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ✅ Better overall value (+139%) |
| Upfront Cost | ⚠️ Higher cost ($12) | ✅ 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 Celeron M 575 and Celeron B800
Celeron M 575
The Celeron M 575 is manufactured by Intel. It was released in 1 June 2008 (17 years ago). It is based on the Merom (2006−2008) architecture. It features 1 cores and 1 threads. Max frequency: 2 GHz. L2 cache: 1 MB. Built on 65 nm process technology. Socket: PGA478. Thermal design power (TDP): 1 MB. Passmark benchmark score: 1,917 points. Launch price was $86.
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 Celeron M 575 packs 1 cores / 1 threads, while the Celeron B800 offers 2 cores / 2 threads — the Celeron B800 has 1 more core. Boost clocks reach 2 GHz on the Celeron M 575 versus 1.5 GHz on the Celeron B800 — a 28.6% clock advantage for the Celeron M 575. The Celeron M 575 uses the Merom (2006−2008) architecture (65 nm), while the Celeron B800 uses Sandy Bridge (2011−2013) (32 nm). In PassMark, the Celeron M 575 scores 1,917 against the Celeron B800's 1,910 — a 0.4% lead for the Celeron M 575.
| Feature | Celeron M 575 | Celeron B800 |
|---|---|---|
| Cores / Threads | 1 / 1 | 2 / 2+100% |
| Boost Clock | 2 GHz+33% | 1.5 GHz |
| Base Clock | — | 1.5 GHz |
| L3 Cache | — | 2 MB (total) |
| L2 Cache | 1 MB+300% | 256K (per core) |
| Process | 65 nm | 32 nm-51% |
| Architecture | Merom (2006−2008) | Sandy Bridge (2011−2013) |
| PassMark | 1,917 | 1,910 |
Memory & Platform
The Celeron M 575 uses the PGA478 socket (PCIe 1.1), while the Celeron B800 uses PGA988 (PCIe 2.0) — making them incompatible on the same motherboard. Maximum memory speed reaches 800 on the Celeron M 575 versus DDR3-1333 on the Celeron B800 — the Celeron M 575 supports 198.5% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Celeron B800 supports up to 16 GB of RAM compared to 4 — 120% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 0 (Celeron M 575) vs 16 (Celeron B800) — the Celeron B800 offers 16 more lanes for additional GPUs or NVMe drives. Chipset compatibility: GL40,GM45 (Celeron M 575) and HM65,HM67,QM67,QM77 (Celeron B800).
| Feature | Celeron M 575 | Celeron B800 |
|---|---|---|
| Socket | PGA478 | PGA988 |
| PCIe Generation | PCIe 1.1 | PCIe 2.0+82% |
| Max RAM Speed | 800+26567% | DDR3-1333 |
| Max RAM Capacity | 4 | 16 GB+419430300% |
| RAM Channels | 2 | 2 |
| ECC Support | ❌ | ❌ |
| PCIe Lanes | 0 | 16 |
Advanced Features
Neither processor supports overclocking. Virtualization support: false (Celeron M 575) vs VT-x (Celeron B800). The Celeron B800 includes integrated graphics (HD Graphics (Sandy Bridge)), while the Celeron M 575 requires a dedicated GPU. Primary use case: Celeron B800 targets Budget. Direct competitor: Celeron M 575 rivals Mobile Sempron SI-40; Celeron B800 rivals Pentium 967.
| Feature | Celeron M 575 | Celeron B800 |
|---|---|---|
| Integrated GPU | No | Yes |
| IGPU Model | None | HD Graphics (Sandy Bridge) |
| Unlocked | No | No |
| AVX-512 | No | No |
| Virtualization | false | VT-x |
| Target Use | — | Budget |
Value Analysis
The Celeron M 575 launched at $86 MSRP, while the Celeron B800 debuted at $80. At current prices ($12 vs $5), the Celeron B800 is $7 cheaper. In terms of value (PassMark points per dollar), the Celeron M 575 delivers 159.8 pts/$ vs 382.0 pts/$ for the Celeron B800 — making the Celeron B800 the 82% better value option.
| Feature | Celeron M 575 | Celeron B800 |
|---|---|---|
| MSRP | $86 | $80-7% |
| Avg Price (30d) | $12 | $5-58% |
| Performance per Dollar | 159.8 | 382.0+139% |
| Release Date | 2008 | 2011 |
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