Pentium 3805U vs Core i3-2312M
Pentium 3805U
Core i3-2312M
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 Pentium 3805U is positioned at rank 344 and the Core i3-2312M is on rank 1200, so the Pentium 3805U offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Pentium 3805U
Performance Per Dollar Core i3-2312M
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Pentium 3805U | Core i3-2312M |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($225) |
| Longevity | 🛑 Legacy (Broadwell-U (2015) / 14 nm) | 🛑 Legacy (Sandy Bridge (2011−2013) / 32 nm) |
💎 Value Proposition
| Insight | Pentium 3805U | Core i3-2312M |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ Higher cost ($225) |
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 Pentium 3805U and Core i3-2312M
Pentium 3805U
The Pentium 3805U is manufactured by Intel. It was released in 1 March 2015 (10 years ago). It is based on the Broadwell-U (2015) 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 14 nm process technology. Socket: FCBGA1168. Thermal design power (TDP): 15 Watt. Memory support: DDR3. Passmark benchmark score: 1,196 points. Launch price was $161.
Core i3-2312M
The Core i3-2312M is manufactured by Intel. It was released in 1 September 2011 (14 years ago). It is based on the Sandy Bridge (2011−2013) architecture. It features 2 cores and 4 threads. Base frequency is 2.1 GHz, with boost up to 2.1 GHz. L3 cache: 3 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: 1,189 points. Launch price was $225.
Processing Power
The Pentium 3805U packs 2 cores / 2 threads, matching the Core i3-2312M's 2 cores. Boost clocks reach 1.9 GHz on the Pentium 3805U versus 2.1 GHz on the Core i3-2312M — a 10% clock advantage for the Core i3-2312M (base: 1.9 GHz vs 2.1 GHz). The Pentium 3805U uses the Broadwell-U (2015) architecture (14 nm), while the Core i3-2312M uses Sandy Bridge (2011−2013) (32 nm). In PassMark, the Pentium 3805U scores 1,196 against the Core i3-2312M's 1,189 — a 0.6% lead for the Pentium 3805U. L3 cache: 2 MB (total) on the Pentium 3805U vs 3 MB (total) on the Core i3-2312M.
| Feature | Pentium 3805U | Core i3-2312M |
|---|---|---|
| Cores / Threads | 2 / 2 | 2 / 4 |
| Boost Clock | 1.9 GHz | 2.1 GHz+11% |
| Base Clock | 1.9 GHz | 2.1 GHz+11% |
| L3 Cache | 2 MB (total) | 3 MB (total)+50% |
| L2 Cache | 256K (per core) | 256K (per core) |
| Process | 14 nm-56% | 32 nm |
| Architecture | Broadwell-U (2015) | Sandy Bridge (2011−2013) |
| PassMark | 1,196 | 1,189 |
| Geekbench 6 Multi | — | 731 |
Memory & Platform
The Pentium 3805U uses the FCBGA1168 socket (PCIe 3.0), while the Core i3-2312M uses PGA988 (PCIe 2.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR3L-1600 on the Pentium 3805U versus 1333 on the Core i3-2312M — the Core i3-2312M supports 199.1% 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: 12 (Pentium 3805U) vs 16 (Core i3-2312M) — the Core i3-2312M offers 4 more lanes for additional GPUs or NVMe drives.
| Feature | Pentium 3805U | Core i3-2312M |
|---|---|---|
| Socket | FCBGA1168 | PGA988 |
| PCIe Generation | PCIe 3.0+50% | PCIe 2.0 |
| Max RAM Speed | DDR3L-1600 | 1333+44333% |
| Max RAM Capacity | 16 GB+104857500% | 16 |
| RAM Channels | 2 | 2 |
| ECC Support | ❌ | ❌ |
| PCIe Lanes | 12 | 16+33% |
Advanced Features
Neither processor supports overclocking. Virtualization support: VT-x, VT-d (Pentium 3805U) vs true (Core i3-2312M). Both include integrated graphics — HD Graphics (Broadwell) (Pentium 3805U) and Intel HD Graphics 3000 (Core i3-2312M) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Pentium 3805U targets Mobile.
| Feature | Pentium 3805U | Core i3-2312M |
|---|---|---|
| Integrated GPU | Yes | Yes |
| IGPU Model | HD Graphics (Broadwell) | Intel HD Graphics 3000 |
| Unlocked | No | No |
| AVX-512 | No | No |
| Virtualization | VT-x, VT-d | true |
| Target Use | Mobile | — |
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