E1-2100 vs Pentium G645
E1-2100
Pentium G645
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 E1-2100 is positioned at rank 719 and the Pentium G645 is on rank 838, so the E1-2100 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar E1-2100
Performance Per Dollar Pentium G645
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | E1-2100 | Pentium G645 |
|---|---|---|
| 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 (Kabini (2013−2014) / 28 nm) | 🛑 Legacy (Sandy Bridge (2011−2013) / 32 nm) |
💎 Value Proposition
| Insight | E1-2100 | Pentium G645 |
|---|---|---|
| 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 E1-2100 and Pentium G645
E1-2100
The E1-2100 is manufactured by AMD. It was released in 2014-01-01. It is based on the Kabini (2013−2014) architecture. It features 2 cores and 2 threads. Max frequency: 1 GHz. L3 cache: 0 kB. L2 cache: 1024 kB. Built on 28 nm process technology. Socket: FT3. Thermal design power (TDP): 9 Watt. Memory support: DDR3. Passmark benchmark score: 1,435 points. Launch price was $50.
Pentium G645
The Pentium G645 is manufactured by Intel. It was released in 2 September 2012 (13 years ago). It is based on the Sandy Bridge (2011−2013) architecture. It features 2 cores and 2 threads. Base frequency is 2.9 GHz, with boost up to 2.9 GHz. L3 cache: 3 MB (total). L2 cache: 256 kB (per core). Built on 32 nm process technology. Socket: LGA1155. Thermal design power (TDP): 65 Watt. Memory support: DDR3. Passmark benchmark score: 1,450 points. Launch price was $80.
Processing Power
Both the E1-2100 and Pentium G645 share an identical 2-core/2-thread configuration. Boost clocks reach 1 GHz on the E1-2100 versus 2.9 GHz on the Pentium G645 — a 97.4% clock advantage for the Pentium G645. The E1-2100 uses the Kabini (2013−2014) architecture (28 nm), while the Pentium G645 uses Sandy Bridge (2011−2013) (32 nm). In PassMark, the E1-2100 scores 1,435 against the Pentium G645's 1,450 — a 1% lead for the Pentium G645. L3 cache: 0 kB on the E1-2100 vs 3 MB (total) on the Pentium G645.
| Feature | E1-2100 | Pentium G645 |
|---|---|---|
| Cores / Threads | 2 / 2 | 2 / 2 |
| Boost Clock | 1 GHz | 2.9 GHz+190% |
| Base Clock | — | 2.9 GHz |
| L3 Cache | 0 kB | 3 MB (total) |
| L2 Cache | 1024 kB+300% | 256 kB (per core) |
| Process | 28 nm-13% | 32 nm |
| Architecture | Kabini (2013−2014) | Sandy Bridge (2011−2013) |
| PassMark | 1,435 | 1,450+1% |
Memory & Platform
The E1-2100 uses the FT3 socket (PCIe 2.0), while the Pentium G645 uses LGA1155 (PCIe 2.0) — making them incompatible on the same motherboard.
| Feature | E1-2100 | Pentium G645 |
|---|---|---|
| Socket | FT3 | LGA1155 |
| PCIe Generation | PCIe 2.0 | PCIe 2.0 |
Top Performing CPUs
The most powerful cpus ranked by PassMark CPU Mark benchmark scores.
You May Also Compare
Similar CPU comparisons based on E1-2100 and Pentium G645
