Pentium 2127U vs Atom E3845
Pentium 2127U
Atom E3845
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 2127U is positioned at rank 403 and the Atom E3845 is on rank 764, so the Pentium 2127U offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Pentium 2127U
Performance Per Dollar Atom E3845
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Pentium 2127U | Atom E3845 |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | Equivalent pricing | Equivalent pricing |
| Longevity | 🛑 Legacy (Ivy Bridge (2012−2013) / 22 nm) | 🛑 Legacy (Bay Trail-I (2013) / 22 nm) |
💎 Value Proposition
| Insight | Pentium 2127U | Atom E3845 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | Equivalent pricing | Equivalent pricing |
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 2127U and Atom E3845
Pentium 2127U
The Pentium 2127U is manufactured by Intel. It was released in 1 July 2013 (12 years ago). It is based on the Ivy Bridge (2012−2013) architecture. It features 2 cores and 2 threads. Base frequency is 1.9 GHz, with boost up to 1.9 GHz. L3 cache: 2 MB. L2 cache: 512 kB. Built on 22 nm process technology. Socket: BGA1023. Thermal design power (TDP): 17 Watt. Memory support: DDR3. Passmark benchmark score: 1,076 points. Launch price was $134.
Atom E3845
The Atom E3845 is manufactured by Intel. It was released in 8 October 2013 (12 years ago). It is based on the Bay Trail-I (2013) architecture. It features 4 cores and 4 threads. Max frequency: 1.91 GHz. L3 cache: 0 kB. L2 cache: 512 kB (per core). Built on 22 nm process technology. Socket: FCBGA1170. Thermal design power (TDP): 10 Watt. Memory support: DDR3. Passmark benchmark score: 1,071 points. Launch price was $69.
Processing Power
The Pentium 2127U packs 2 cores / 2 threads, while the Atom E3845 offers 4 cores / 4 threads — the Atom E3845 has 2 more cores. Boost clocks reach 1.9 GHz on the Pentium 2127U versus 1.91 GHz on the Atom E3845 — a 0.5% clock advantage for the Atom E3845. The Pentium 2127U uses the Ivy Bridge (2012−2013) architecture (22 nm), while the Atom E3845 uses Bay Trail-I (2013) (22 nm). In PassMark, the Pentium 2127U scores 1,076 against the Atom E3845's 1,071 — a 0.5% lead for the Pentium 2127U. L3 cache: 2 MB on the Pentium 2127U vs 0 kB on the Atom E3845.
| Feature | Pentium 2127U | Atom E3845 |
|---|---|---|
| Cores / Threads | 2 / 2 | 4 / 4+100% |
| Boost Clock | 1.9 GHz | 1.91 GHz |
| Base Clock | 1.9 GHz | — |
| L3 Cache | 2 MB | 0 kB |
| L2 Cache | 512 kB | 512 kB (per core) |
| Process | 22 nm | 22 nm |
| Architecture | Ivy Bridge (2012−2013) | Bay Trail-I (2013) |
| PassMark | 1,076 | 1,071 |
Memory & Platform
The Pentium 2127U uses the BGA1023 socket (PCIe 3.0), while the Atom E3845 uses FCBGA1170 (PCIe 2.0) — making them incompatible on the same motherboard.
| Feature | Pentium 2127U | Atom E3845 |
|---|---|---|
| Socket | BGA1023 | FCBGA1170 |
| PCIe Generation | PCIe 3.0+50% | PCIe 2.0 |
| Max RAM Speed | — | DDR3L-1333 |
| Max RAM Capacity | — | 8 GB |
| RAM Channels | — | 2 |
| ECC Support | — | ✅ |
| PCIe Lanes | — | 4 |
Advanced Features
The Atom E3845 includes integrated graphics (Intel HD Graphics (Bay Trail)), while the Pentium 2127U requires a dedicated GPU.
| Feature | Pentium 2127U | Atom E3845 |
|---|---|---|
| Integrated GPU | — | Yes |
| IGPU Model | — | Intel HD Graphics (Bay Trail) |
Top Performing CPUs
The most powerful cpus ranked by PassMark CPU Mark benchmark scores.
You May Also Compare
Similar CPU comparisons based on Pentium 2127U and Atom E3845
