Celeron 1000M vs Celeron B840
Celeron 1000M
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 1000M is positioned at rank 1026 and the Celeron B840 is on rank 1028, so the Celeron 1000M offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Celeron 1000M
Performance Per Dollar Celeron B840
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Celeron 1000M | Celeron B840 |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ⚠️ Higher cost ($86) | ✅ More affordable ($15) |
| Longevity | 🛑 Legacy (Ivy Bridge (2012−2013) / 22 nm) | 🛑 Legacy (Sandy Bridge (2011−2013) / 32 nm) |
💎 Value Proposition
| Insight | Celeron 1000M | Celeron B840 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ✅ Better overall value (+471%) |
| Upfront Cost | ⚠️ Higher cost ($86) | ✅ More affordable ($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 1000M and Celeron B840
Celeron 1000M
The Celeron 1000M is manufactured by Intel. It was released in 20 January 2013 (12 years ago). It is based on the Ivy Bridge (2012−2013) architecture. It features 2 cores and 2 threads. Base frequency is 1.8 GHz, with boost up to 1.8 GHz. L3 cache: 2 MB (total). L2 cache: 256K (per core). Built on 22 nm process technology. Socket: PGA988. Thermal design power (TDP): 35 Watt. Memory support: DDR3. Passmark benchmark score: 1,070 points. Launch price was $86.
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 1000M and Celeron B840 share an identical 2-core/2-thread configuration. Boost clocks reach 1.8 GHz on the Celeron 1000M versus 1.9 GHz on the Celeron B840 — a 5.4% clock advantage for the Celeron B840 (base: 1.8 GHz vs 1.9 GHz). The Celeron 1000M uses the Ivy Bridge (2012−2013) architecture (22 nm), while the Celeron B840 uses Sandy Bridge (2011−2013) (32 nm). In PassMark, the Celeron 1000M scores 1,070 against the Celeron B840's 1,065 — a 0.5% lead for the Celeron 1000M. Both processors carry 2 MB (total) of L3 cache.
| Feature | Celeron 1000M | Celeron B840 |
|---|---|---|
| Cores / Threads | 2 / 2 | 2 / 2 |
| Boost Clock | 1.8 GHz | 1.9 GHz+6% |
| Base Clock | 1.8 GHz | 1.9 GHz+6% |
| L3 Cache | 2 MB (total) | 2 MB (total) |
| L2 Cache | 256K (per core) | 256K (per core) |
| Process | 22 nm-31% | 32 nm |
| Architecture | Ivy Bridge (2012−2013) | Sandy Bridge (2011−2013) |
| PassMark | 1,070 | 1,065 |
| Geekbench 6 Single | — | 450 |
| Geekbench 6 Multi | — | 790 |
Memory & Platform
Both processors use the PGA988 socket with PCIe 3.0. Maximum memory speed reaches DDR3-1600 on the Celeron 1000M 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 1000M supports up to 32 GB of RAM compared to 16 — 66.7% more capacity for professional workloads. Both feature 2-channel memory with ECC support. Both provide 16 PCIe lanes. Chipset compatibility: Intel FCPGA988 (Celeron 1000M) and HM65,HM67,QM67 (Celeron B840).
| Feature | Celeron 1000M | Celeron B840 |
|---|---|---|
| Socket | PGA988 | PGA988 |
| PCIe Generation | PCIe 3.0+50% | PCIe 2.0 |
| Max RAM Speed | DDR3-1600 | 1333+44333% |
| Max RAM Capacity | 32 GB+209715100% | 16 |
| RAM Channels | 2 | 2 |
| ECC Support | ❌ | ❌ |
| PCIe Lanes | 16 | 16 |
Advanced Features
Virtualization: not specified (Celeron 1000M) / true (Celeron B840). Both include integrated graphics — Intel HD Graphics (Ivy Bridge) (Celeron 1000M) 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 B840 targets Budget. Direct competitor: Celeron B840 rivals Pentium B940.
| Feature | Celeron 1000M | Celeron B840 |
|---|---|---|
| Integrated GPU | Yes | Yes |
| IGPU Model | Intel HD Graphics (Ivy Bridge) | Intel HD Graphics (Sandy Bridge) |
| Unlocked | — | No |
| AVX-512 | — | No |
| Virtualization | — | true |
| Target Use | — | Budget |
Value Analysis
The Celeron 1000M launched at $86 MSRP, while the Celeron B840 debuted at $86.
| Feature | Celeron 1000M | Celeron B840 |
|---|---|---|
| MSRP | $86 | $86 |
| Avg Price (30d) | — | $15 |
| Release Date | 2013 | 2011 |
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