CPU
GPU
Celeron B810
Core 2 Quad Q8400
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 B810 is positioned at rank 801 and the Core 2 Quad Q8400 is on rank 975, so the Celeron B810 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Celeron B810
Performance Per Dollar Core 2 Quad Q8400
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Celeron B810 | Core 2 Quad Q8400 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ✅ More affordable ($86) | ⚠️ Higher cost ($128) |
| Longevity | 🛑 Legacy (Sandy Bridge (2011−2013) / 32 nm) | 🛑 Legacy (Yorkfield (2007−2009) / 45 nm) |
💎 Value Proposition
| Insight | Celeron B810 | Core 2 Quad Q8400 |
|---|---|---|
| Cost Efficiency | ✅ Better overall value (+50%) | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($86) | ⚠️ Higher cost ($128) |
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 B810 and Core 2 Quad Q8400
Celeron B810
The Celeron B810 is manufactured by Intel. It was released in 1 March 2011 (14 years ago). It is based on the Sandy Bridge (2011−2013) architecture. It features 2 cores and 2 threads. Base frequency is 1.6 GHz, with boost up to 1.6 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: 2,091 points. Launch price was $86.
Core 2 Quad Q8400
The Core 2 Quad Q8400 is manufactured by Intel. It was released in 2008-01-01. It is based on the Yorkfield (2007−2009) architecture. It features 4 cores and 4 threads. Base frequency is 2.66 GHz, with boost up to 0.67 GHz. L3 cache: 0 kB. L2 cache: 4 MB (total). Built on 45 nm process technology. Socket: LGA775. Thermal design power (TDP): 95 Watt. Memory support: DDR1, DDR2, DDR3. Passmark benchmark score: 2,076 points. Launch price was $249.
Processing Power
The Celeron B810 packs 2 cores / 2 threads, while the Core 2 Quad Q8400 offers 4 cores / 4 threads — the Core 2 Quad Q8400 has 2 more cores. Boost clocks reach 1.6 GHz on the Celeron B810 versus 0.67 GHz on the Core 2 Quad Q8400 — a 81.9% clock advantage for the Celeron B810 (base: 1.6 GHz vs 2.66 GHz). The Celeron B810 uses the Sandy Bridge (2011−2013) architecture (32 nm), while the Core 2 Quad Q8400 uses Yorkfield (2007−2009) (45 nm). In PassMark, the Celeron B810 scores 2,091 against the Core 2 Quad Q8400's 2,076 — a 0.7% lead for the Celeron B810. L3 cache: 2 MB (total) on the Celeron B810 vs 0 kB on the Core 2 Quad Q8400.
| Feature | Celeron B810 | Core 2 Quad Q8400 |
|---|---|---|
| Cores / Threads | 2 / 2 | 4 / 4+100% |
| Boost Clock | 1.6 GHz+139% | 0.67 GHz |
| Base Clock | 1.6 GHz | 2.66 GHz+66% |
| L3 Cache | 2 MB (total) | 0 kB |
| L2 Cache | 256K (per core) | 4 MB (total)+1500% |
| Process | 32 nm-29% | 45 nm |
| Architecture | Sandy Bridge (2011−2013) | Yorkfield (2007−2009) |
| PassMark | 2,091 | 2,076 |
| Cinebench R23 Multi | — | 852 |
| Geekbench 6 Single | — | 369 |
| Geekbench 6 Multi | — | 1,155 |
Memory & Platform
The Celeron B810 uses the PGA988 socket (PCIe 2.0), while the Core 2 Quad Q8400 uses LGA775 (PCIe 1.1) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR3-1333 on the Celeron B810 versus DDR3 1333 MHz on the Core 2 Quad Q8400 — the Core 2 Quad Q8400 supports 200% faster memory, which can translate to measurable gains in memory-sensitive workloads. Both support up to 16 GB of RAM. Both feature 2-channel memory with ECC support. PCIe lanes: 16 (Celeron B810) vs 0 (Core 2 Quad Q8400) — the Celeron B810 offers 16 more lanes for additional GPUs or NVMe drives. Chipset compatibility: HM65,HM67,QM67,QM77 (Celeron B810) and Intel P45,Intel G41,Intel Q45,Intel X48,Intel G31 (Core 2 Quad Q8400).
| Feature | Celeron B810 | Core 2 Quad Q8400 |
|---|---|---|
| Socket | PGA988 | LGA775 |
| PCIe Generation | PCIe 2.0+82% | PCIe 1.1 |
| Max RAM Speed | DDR3-1333 | DDR3 1333 MHz |
| Max RAM Capacity | 16 GB | 16 GB |
| RAM Channels | 2 | 2 |
| ECC Support | ❌ | ❌ |
| PCIe Lanes | 16 | 0 |
Advanced Features
Neither processor supports overclocking. Virtualization support: VT-x (Celeron B810) vs true (Core 2 Quad Q8400). The Celeron B810 includes integrated graphics (HD Graphics (Sandy Bridge)), while the Core 2 Quad Q8400 requires a dedicated GPU. Primary use case: Celeron B810 targets Budget, Core 2 Quad Q8400 targets Desktop. Direct competitor: Celeron B810 rivals Pentium 967.
| Feature | Celeron B810 | Core 2 Quad Q8400 |
|---|---|---|
| Integrated GPU | Yes | No |
| IGPU Model | HD Graphics (Sandy Bridge) | — |
| Unlocked | No | No |
| AVX-512 | No | No |
| Virtualization | VT-x | true |
| Target Use | Budget | Desktop |
Value Analysis
The Celeron B810 launched at $86 MSRP, while the Core 2 Quad Q8400 debuted at $183. At current prices ($86 vs $128), the Celeron B810 is $42 cheaper. In terms of value (PassMark points per dollar), the Celeron B810 delivers 24.3 pts/$ vs 16.2 pts/$ for the Core 2 Quad Q8400 — making the Celeron B810 the 39.9% better value option.
| Feature | Celeron B810 | Core 2 Quad Q8400 |
|---|---|---|
| MSRP | $86-53% | $183 |
| Avg Price (30d) | $86-33% | $128 |
| Performance per Dollar | 24.3+50% | 16.2 |
| Release Date | 2011 | 2009 |
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