A4-4000 vs Core 2 Duo E8400
A4-4000
Core 2 Duo E8400
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 A4-4000 is positioned at rank 811 and the Core 2 Duo E8400 is on rank 508, so the Core 2 Duo E8400 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar A4-4000
Performance Per Dollar Core 2 Duo E8400
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | A4-4000 | Core 2 Duo E8400 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | Equivalent pricing | Equivalent pricing |
| Longevity | 🛑 Legacy (Richland (2013−2014) / 32 nm) | 🛑 Legacy (Wolfdale (2008−2010) / 45 nm) |
💎 Value Proposition
| Insight | A4-4000 | Core 2 Duo E8400 |
|---|---|---|
| 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 A4-4000 and Core 2 Duo E8400
A4-4000
The A4-4000 is manufactured by AMD. It was released in 2014-01-01. It is based on the Richland (2013−2014) architecture. It features 2 cores and 2 threads. Base frequency is 3 GHz, with boost up to 3.2 GHz. L3 cache: 0 kB. L2 cache: 1 MB (per core). Built on 32 nm process technology. Socket: FM2. Thermal design power (TDP): 65 Watt. Memory support: DDR3. Passmark benchmark score: 1,152 points. Launch price was $50.
Core 2 Duo E8400
The Core 2 Duo E8400 is manufactured by Intel. It was released in 2008-01-01. It is based on the Wolfdale (2008−2010) architecture. It features 2 cores and 2 threads. Base frequency is 3 GHz, with boost up to 3 GHz. L3 cache: 0 kB. L2 cache: 6 MB (total). Built on 45 nm process technology. Socket: LGA775. Thermal design power (TDP): 65 Watt. Memory support: DDR1, DDR2, DDR3. Passmark benchmark score: 1,165 points. Launch price was $249.
Processing Power
Both the A4-4000 and Core 2 Duo E8400 share an identical 2-core/2-thread configuration. Boost clocks reach 3.2 GHz on the A4-4000 versus 3 GHz on the Core 2 Duo E8400 — a 6.5% clock advantage for the A4-4000 (base: 3 GHz vs 3 GHz). The A4-4000 uses the Richland (2013−2014) architecture (32 nm), while the Core 2 Duo E8400 uses Wolfdale (2008−2010) (45 nm). In PassMark, the A4-4000 scores 1,152 against the Core 2 Duo E8400's 1,165 — a 1.1% lead for the Core 2 Duo E8400. Both processors carry 0 kB of L3 cache.
| Feature | A4-4000 | Core 2 Duo E8400 |
|---|---|---|
| Cores / Threads | 2 / 2 | 2 / 2 |
| Boost Clock | 3.2 GHz+7% | 3 GHz |
| Base Clock | 3 GHz | 3 GHz |
| L3 Cache | 0 kB | 0 kB |
| L2 Cache | 1 MB (per core) | 6 MB (total)+500% |
| Process | 32 nm-29% | 45 nm |
| Architecture | Richland (2013−2014) | Wolfdale (2008−2010) |
| PassMark | 1,152 | 1,165+1% |
| Geekbench 6 Single | 348 | — |
Memory & Platform
The A4-4000 uses the FM2 socket (PCIe 3.0), while the Core 2 Duo E8400 uses LGA775 (PCIe 1.1) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR3-1333 on the A4-4000 versus 1333 on the Core 2 Duo E8400 — the Core 2 Duo E8400 supports 199.1% faster memory, which can translate to measurable gains in memory-sensitive workloads. The A4-4000 supports up to 32 GB of RAM compared to 16 — 66.7% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 8 (A4-4000) vs 16 (Core 2 Duo E8400) — the Core 2 Duo E8400 offers 8 more lanes for additional GPUs or NVMe drives. Chipset compatibility: A55,A75,A85X,A88X (A4-4000) and P35,G31,G33,P45 (Core 2 Duo E8400).
| Feature | A4-4000 | Core 2 Duo E8400 |
|---|---|---|
| Socket | FM2 | LGA775 |
| PCIe Generation | PCIe 3.0+173% | PCIe 1.1 |
| Max RAM Speed | DDR3-1333 | 1333+44333% |
| Max RAM Capacity | 32 GB+209715100% | 16 |
| RAM Channels | 2 | 2 |
| ECC Support | ❌ | ❌ |
| PCIe Lanes | 8 | 16+100% |
Advanced Features
Neither processor supports overclocking. Virtualization support: AMD-V (A4-4000) vs true (Core 2 Duo E8400). The A4-4000 includes integrated graphics (Radeon HD 7480D), while the Core 2 Duo E8400 requires a dedicated GPU. Primary use case: A4-4000 targets Budget Desktop. Direct competitor: A4-4000 rivals Celeron G1610; Core 2 Duo E8400 rivals Phenom II X2 550.
| Feature | A4-4000 | Core 2 Duo E8400 |
|---|---|---|
| Integrated GPU | Yes | No |
| IGPU Model | Radeon HD 7480D | None |
| Unlocked | No | No |
| AVX-512 | No | No |
| Virtualization | AMD-V | true |
| Target Use | Budget Desktop | — |
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