
Phenom II X2 545 vs Pentium G645T

Phenom II X2 545

Pentium G645T
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 X2 545 is positioned at rank 490 and the Pentium G645T is on rank 807, so the Phenom II X2 545 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 X2 545
Performance Per Dollar Pentium G645T
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Phenom II X2 545 | Pentium G645T |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($15) |
| Longevity | 🛑 Legacy (Callisto (2009−2010) / 45 nm) | 🛑 Legacy (Sandy Bridge (2011−2013) / 32 nm) |
💎 Value Proposition
| Insight | Phenom II X2 545 | Pentium G645T |
|---|---|---|
| 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 Phenom II X2 545 and Pentium G645T

Phenom II X2 545
The Phenom II X2 545 is manufactured by AMD. It was released in 1 June 2009 (16 years ago). It is based on the Callisto (2009−2010) architecture. It features 2 cores and 2 threads. Base frequency is 3 GHz, with boost up to 3 GHz. L3 cache: 6 MB (per core). L2 cache: 512 kB (per core). Built on 45 nm process technology. Socket: AM3. Thermal design power (TDP): 80 Watt. Memory support: DDR3. Passmark benchmark score: 1,233 points. Launch price was $50.

Pentium G645T
The Pentium G645T is manufactured by Intel. It was released in 2007-01-01. It is based on the Sandy Bridge (2011−2013) architecture. It features 2 cores and 2 threads. Base frequency is 2.5 GHz, with boost up to 2.5 GHz. L3 cache: 3 MB (total). L2 cache: 256 kB (per core). Built on 32 nm process technology. Socket: LGA1155. Thermal design power (TDP): 35 Watt. Memory support: DDR3. Passmark benchmark score: 1,238 points. Launch price was $69.
Processing Power
Both the Phenom II X2 545 and Pentium G645T share an identical 2-core/2-thread configuration. Boost clocks reach 3 GHz on the Phenom II X2 545 versus 2.5 GHz on the Pentium G645T — a 18.2% clock advantage for the Phenom II X2 545 (base: 3 GHz vs 2.5 GHz). The Phenom II X2 545 uses the Callisto (2009−2010) architecture (45 nm), while the Pentium G645T uses Sandy Bridge (2011−2013) (32 nm). In PassMark, the Phenom II X2 545 scores 1,233 against the Pentium G645T's 1,238 — a 0.4% lead for the Pentium G645T. L3 cache: 6 MB (per core) on the Phenom II X2 545 vs 3 MB (total) on the Pentium G645T.
| Feature | Phenom II X2 545 | Pentium G645T |
|---|---|---|
| Cores / Threads | 2 / 2 | 2 / 2 |
| Boost Clock | 3 GHz+20% | 2.5 GHz |
| Base Clock | 3 GHz+20% | 2.5 GHz |
| L3 Cache | 6 MB (per core)+100% | 3 MB (total) |
| L2 Cache | 512 kB (per core)+100% | 256 kB (per core) |
| Process | 45 nm | 32 nm-29% |
| Architecture | Callisto (2009−2010) | Sandy Bridge (2011−2013) |
| PassMark | 1,233 | 1,238 |
Memory & Platform
The Phenom II X2 545 uses the AM3 socket (PCIe 2.0), while the Pentium G645T uses LGA1155 (PCIe 2.0) — making them incompatible on the same motherboard.
| Feature | Phenom II X2 545 | Pentium G645T |
|---|---|---|
| Socket | AM3 | LGA1155 |
| PCIe Generation | PCIe 2.0 | PCIe 2.0 |
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