E-300 vs Core 2 Duo E6400
E-300
Core 2 Duo E6400
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 E-300 is positioned at rank 891 and the Core 2 Duo E6400 is on rank 1059, so the E-300 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar E-300
Performance Per Dollar Core 2 Duo E6400
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | E-300 | Core 2 Duo E6400 |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ⚠️ Higher cost ($20) | ✅ More affordable ($10) |
| Longevity | 🛑 Legacy (Zacate (2011−2013) / 40 nm) | 🛑 Legacy (Conroe (2006−2007) / 65 nm) |
💎 Value Proposition
| Insight | E-300 | Core 2 Duo E6400 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ✅ Better overall value (+100%) |
| Upfront Cost | ⚠️ Higher cost ($20) | ✅ More affordable ($10) |
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 E-300 and Core 2 Duo E6400
E-300
The E-300 is manufactured by AMD. It was released in 22 August 2011 (14 years ago). It is based on the Zacate (2011−2013) architecture. It features 2 cores and 2 threads. Max frequency: 1.3 GHz. L3 cache: 0 kB. L2 cache: 512K (per core). Built on 40 nm process technology. Socket: FT1. Thermal design power (TDP): 18 Watt. Memory support: DDR3. Passmark benchmark score: 1,176 points. Launch price was $69.
Core 2 Duo E6400
The Core 2 Duo E6400 is manufactured by Intel. It was released in 2008-01-01. It is based on the Conroe (2006−2007) architecture. It features 2 cores and 2 threads. Base frequency is 2.13 GHz, with boost up to 2.13 GHz. L3 cache: 0 kB. L2 cache: 2 MB. Built on 65 nm process technology. Socket: LGA775. Thermal design power (TDP): 65 Watt. Memory support: DDR1, DDR2, DDR3. Passmark benchmark score: 1,175 points. Launch price was $249.
Processing Power
Both the E-300 and Core 2 Duo E6400 share an identical 2-core/2-thread configuration. Boost clocks reach 1.3 GHz on the E-300 versus 2.13 GHz on the Core 2 Duo E6400 — a 48.4% clock advantage for the Core 2 Duo E6400. The E-300 uses the Zacate (2011−2013) architecture (40 nm), while the Core 2 Duo E6400 uses Conroe (2006−2007) (65 nm). In PassMark, the E-300 scores 1,176 against the Core 2 Duo E6400's 1,175 — a 0.1% lead for the E-300. Both processors carry 0 kB of L3 cache.
| Feature | E-300 | Core 2 Duo E6400 |
|---|---|---|
| Cores / Threads | 2 / 2 | 2 / 2 |
| Boost Clock | 1.3 GHz | 2.13 GHz+64% |
| Base Clock | — | 2.13 GHz |
| L3 Cache | 0 kB | 0 kB |
| L2 Cache | 512K (per core) | 2 MB+300% |
| Process | 40 nm-38% | 65 nm |
| Architecture | Zacate (2011−2013) | Conroe (2006−2007) |
| PassMark | 1,176 | 1,175 |
Memory & Platform
The E-300 uses the FT1 socket (PCIe 2.0), while the Core 2 Duo E6400 uses LGA775 (PCIe 1.1) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR3-1066 on the E-300 versus 1066 on the Core 2 Duo E6400 — the Core 2 Duo E6400 supports 198.9% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Core 2 Duo E6400 supports up to 16 of RAM compared to 8 GB — 66.7% more capacity for professional workloads. Memory channels: 1 (E-300) vs 2 (Core 2 Duo E6400). PCIe lanes: 0 (E-300) vs 16 (Core 2 Duo E6400) — the Core 2 Duo E6400 offers 16 more lanes for additional GPUs or NVMe drives.
| Feature | E-300 | Core 2 Duo E6400 |
|---|---|---|
| Socket | FT1 | LGA775 |
| PCIe Generation | PCIe 2.0+82% | PCIe 1.1 |
| Max RAM Speed | DDR3-1066 | 1066+35433% |
| Max RAM Capacity | 8 GB+52428700% | 16 |
| RAM Channels | 1 | 2+100% |
| ECC Support | ❌ | ❌ |
| PCIe Lanes | 0 | 16 |
Advanced Features
Neither processor supports overclocking. Virtualization support: AMD-V (E-300) vs true (Core 2 Duo E6400). The E-300 includes integrated graphics (Radeon HD 6310), while the Core 2 Duo E6400 requires a dedicated GPU. Primary use case: E-300 targets Budget Mobile. Direct competitor: Core 2 Duo E6400 rivals Athlon 64 X2 5400+.
| Feature | E-300 | Core 2 Duo E6400 |
|---|---|---|
| Integrated GPU | Yes | No |
| IGPU Model | Radeon HD 6310 | None |
| Unlocked | No | No |
| AVX-512 | No | No |
| Virtualization | AMD-V | true |
| Target Use | Budget Mobile | — |
Value Analysis
The E-300 launched at $60 MSRP, while the Core 2 Duo E6400 debuted at $183. At current prices ($20 vs $10), the Core 2 Duo E6400 is $10 cheaper. In terms of value (PassMark points per dollar), the E-300 delivers 58.8 pts/$ vs 117.5 pts/$ for the Core 2 Duo E6400 — making the Core 2 Duo E6400 the 66.6% better value option.
| Feature | E-300 | Core 2 Duo E6400 |
|---|---|---|
| MSRP | $60-67% | $183 |
| Avg Price (30d) | $20 | $10-50% |
| Performance per Dollar | 58.8 | 117.5+100% |
| Release Date | 2011 | 2006 |
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