Phenom II X3 B77 vs Core 2 Duo T7400
Phenom II X3 B77
Core 2 Duo T7400
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 Phenom II X3 B77 is positioned at rank 1057 and the Core 2 Duo T7400 is on rank 1027, so the Core 2 Duo T7400 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Phenom II X3 B77
Performance Per Dollar Core 2 Duo T7400
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Phenom II X3 B77 | Core 2 Duo T7400 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ⚠️ Higher cost ($35) | ✅ More affordable ($0) |
| Longevity | 🛑 Legacy (Heka (2009−2010) / 45 nm) | 🛑 Legacy (Merom (2006−2008) / 65 nm) |
💎 Value Proposition
| Insight | Phenom II X3 B77 | Core 2 Duo T7400 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ⚠️ Higher cost ($35) | ✅ More affordable ($0) |
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 Phenom II X3 B77 and Core 2 Duo T7400
Phenom II X3 B77
The Phenom II X3 B77 is manufactured by AMD. It was released in 2009-01-01. It is based on the Heka (2009−2010) architecture. It features 3 cores and 3 threads. Base frequency is 3.2 GHz, with boost up to 3.2 GHz. L3 cache: 6 MB (total). L2 cache: 512 kB (per core). Built on 45 nm process technology. Socket: AM3. Thermal design power (TDP): 95 Watt. Memory support: DDR3. Passmark benchmark score: 1,844 points. Launch price was $149.
Core 2 Duo T7400
The Core 2 Duo T7400 is manufactured by Intel. It was released in 28 August 2006 (19 years ago). It is based on the Merom (2006−2008) architecture. It features 2 cores and 2 threads. Base frequency is 2.16 GHz, with boost up to 2.16 GHz. L3 cache: 0 kB. L2 cache: 4 MB. Built on 65 nm process technology. Socket: PGA478. Thermal design power (TDP): 34 Watt. Passmark benchmark score: 1,861 points. Launch price was $286.
Processing Power
The Phenom II X3 B77 packs 3 cores / 3 threads, while the Core 2 Duo T7400 offers 2 cores / 2 threads — the Phenom II X3 B77 has 1 more core. Boost clocks reach 3.2 GHz on the Phenom II X3 B77 versus 2.16 GHz on the Core 2 Duo T7400 — a 38.8% clock advantage for the Phenom II X3 B77 (base: 3.2 GHz vs 2.16 GHz). The Phenom II X3 B77 uses the Heka (2009−2010) architecture (45 nm), while the Core 2 Duo T7400 uses Merom (2006−2008) (65 nm). In PassMark, the Phenom II X3 B77 scores 1,844 against the Core 2 Duo T7400's 1,861 — a 0.9% lead for the Core 2 Duo T7400. L3 cache: 6 MB (total) on the Phenom II X3 B77 vs 0 kB on the Core 2 Duo T7400.
| Feature | Phenom II X3 B77 | Core 2 Duo T7400 |
|---|---|---|
| Cores / Threads | 3 / 3+50% | 2 / 2 |
| Boost Clock | 3.2 GHz+48% | 2.16 GHz |
| Base Clock | 3.2 GHz+48% | 2.16 GHz |
| L3 Cache | 6 MB (total) | 0 kB |
| L2 Cache | 512 kB (per core) | 4 MB+700% |
| Process | 45 nm-31% | 65 nm |
| Architecture | Heka (2009−2010) | Merom (2006−2008) |
| PassMark | 1,844 | 1,861 |
| Geekbench 6 Single | — | 310 |
| Geekbench 6 Multi | — | 550 |
Memory & Platform
The Phenom II X3 B77 uses the AM3 socket (PCIe 2.0), while the Core 2 Duo T7400 uses PGA478 (PCIe 1.1) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR3-1333 on the Phenom II X3 B77 versus DDR2-667 on the Core 2 Duo T7400 — the Phenom II X3 B77 supports 40% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Phenom II X3 B77 supports up to 32 GB of RAM compared to 4 GB — 155.6% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 0 (Phenom II X3 B77) vs 16 (Core 2 Duo T7400) — the Core 2 Duo T7400 offers 16 more lanes for additional GPUs or NVMe drives. Chipset compatibility: AM3 (Phenom II X3 B77) and 945GT,GME965 (Core 2 Duo T7400).
| Feature | Phenom II X3 B77 | Core 2 Duo T7400 |
|---|---|---|
| Socket | AM3 | PGA478 |
| PCIe Generation | PCIe 2.0+82% | PCIe 1.1 |
| Max RAM Speed | DDR3-1333+50% | DDR2-667 |
| Max RAM Capacity | 32 GB+700% | 4 GB |
| RAM Channels | 2 | 2 |
| ECC Support | ✅ | ❌ |
| PCIe Lanes | 0 | 16 |
Advanced Features
Virtualization: not specified (Phenom II X3 B77) / VT-x (Core 2 Duo T7400). Primary use case: Core 2 Duo T7400 targets Legacy Laptop.
| Feature | Phenom II X3 B77 | Core 2 Duo T7400 |
|---|---|---|
| Integrated GPU | No | No |
| IGPU Model | — | None |
| Unlocked | — | No |
| AVX-512 | — | No |
| Virtualization | — | VT-x |
| Target Use | — | Legacy Laptop |
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