Celeron Dual-Core T1700 vs Celeron B840
Celeron Dual-Core T1700
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 Dual-Core T1700 is positioned at rank 769 and the Celeron B840 is on rank 1028, so the Celeron Dual-Core T1700 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Celeron Dual-Core T1700
Performance Per Dollar Celeron B840
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Celeron Dual-Core T1700 | Celeron B840 |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($15) |
| Longevity | 🛑 Legacy (Merom (2006−2008) / 65 nm) | 🛑 Legacy (Sandy Bridge (2011−2013) / 32 nm) |
💎 Value Proposition
| Insight | Celeron Dual-Core T1700 | Celeron B840 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ 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 Dual-Core T1700 and Celeron B840
Celeron Dual-Core T1700
The Celeron Dual-Core T1700 is manufactured by Intel. It was released in 2007-01-01. It is based on the Merom (2006−2008) architecture. It features 2 cores and 2 threads. Max frequency: 1.83 GHz. L2 cache: 1 MB. Built on 65 nm process technology. Socket: PGA478. Thermal design power (TDP): 1 MB. Passmark benchmark score: 1,058 points. Launch price was $69.
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 Dual-Core T1700 and Celeron B840 share an identical 2-core/2-thread configuration. Boost clocks reach 1.83 GHz on the Celeron Dual-Core T1700 versus 1.9 GHz on the Celeron B840 — a 3.8% clock advantage for the Celeron B840. The Celeron Dual-Core T1700 uses the Merom (2006−2008) architecture (65 nm), while the Celeron B840 uses Sandy Bridge (2011−2013) (32 nm). In PassMark, the Celeron Dual-Core T1700 scores 1,058 against the Celeron B840's 1,065 — a 0.7% lead for the Celeron B840.
| Feature | Celeron Dual-Core T1700 | Celeron B840 |
|---|---|---|
| Cores / Threads | 2 / 2 | 2 / 2 |
| Boost Clock | 1.83 GHz | 1.9 GHz+4% |
| Base Clock | — | 1.9 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 | 1,058 | 1,065 |
| Geekbench 6 Single | — | 450 |
| Geekbench 6 Multi | — | 790 |
Memory & Platform
The Celeron Dual-Core T1700 uses the PGA478 socket (PCIe 1.1), while the Celeron B840 uses PGA988 (PCIe 2.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR2-667 on the Celeron Dual-Core T1700 versus 1333 on the Celeron B840 — the Celeron B840 supports 199.4% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Celeron B840 supports up to 16 of RAM compared to 4 GB — 120% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 0 (Celeron Dual-Core T1700) vs 16 (Celeron B840) — the Celeron B840 offers 16 more lanes for additional GPUs or NVMe drives. Chipset compatibility: GL40,GM45 (Celeron Dual-Core T1700) and HM65,HM67,QM67 (Celeron B840).
| Feature | Celeron Dual-Core T1700 | Celeron B840 |
|---|---|---|
| Socket | PGA478 | PGA988 |
| PCIe Generation | PCIe 1.1 | PCIe 2.0+82% |
| Max RAM Speed | DDR2-667 | 1333+66550% |
| Max RAM Capacity | 4 GB+26214300% | 16 |
| RAM Channels | 2 | 2 |
| ECC Support | ❌ | ❌ |
| PCIe Lanes | 0 | 16 |
Advanced Features
Neither processor supports overclocking. Virtualization support: No (Celeron Dual-Core T1700) vs true (Celeron B840). The Celeron B840 includes integrated graphics (Intel HD Graphics (Sandy Bridge)), while the Celeron Dual-Core T1700 requires a dedicated GPU. Primary use case: Celeron Dual-Core T1700 targets Budget, Celeron B840 targets Budget. Direct competitor: Celeron Dual-Core T1700 rivals Pentium T2390; Celeron B840 rivals Pentium B940.
| Feature | Celeron Dual-Core T1700 | Celeron B840 |
|---|---|---|
| Integrated GPU | No | Yes |
| IGPU Model | — | Intel HD Graphics (Sandy Bridge) |
| Unlocked | No | No |
| AVX-512 | No | No |
| Virtualization | No | true |
| Target Use | Budget | Budget |
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