CPU
GPU
Xeon E5-4603
Phenom II X6 1065T
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 Xeon E5-4603 is positioned at rank 670 and the Phenom II X6 1065T is on rank 1030, so the Xeon E5-4603 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Xeon E5-4603
Performance Per Dollar Phenom II X6 1065T
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Xeon E5-4603 | Phenom II X6 1065T |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($80) | ⚠️ Higher cost ($170) |
| Longevity | 🛑 Legacy (Sandy Bridge-EP (2012) / 32 nm) | 🛑 Legacy (Thuban (2010) / 45 nm) |
💎 Value Proposition
| Insight | Xeon E5-4603 | Phenom II X6 1065T |
|---|---|---|
| Cost Efficiency | ✅ Better overall value (+111%) | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($80) | ⚠️ Higher cost ($170) |
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 Xeon E5-4603 and Phenom II X6 1065T
Xeon E5-4603
The Xeon E5-4603 is manufactured by Intel. It was released in 14 May 2012 (13 years ago). It is based on the Sandy Bridge-EP (2012) architecture. It features 4 cores and 8 threads. Base frequency is 2 GHz, with boost up to 2 GHz. L3 cache: 10240 kB (total). L2 cache: 256 kB (per core). Built on 32 nm process technology. Socket: LGA2011. Thermal design power (TDP): 95 Watt. Memory support: DDR3. Passmark benchmark score: 3,391 points. Launch price was $712.
Phenom II X6 1065T
The Phenom II X6 1065T is manufactured by AMD. It was released in 2009-01-01. It is based on the Thuban (2010) architecture. It features 6 cores and 6 threads. Base frequency is 2.9 GHz, with boost up to 3.4 GHz. L3 cache: 6 MB (total). L2 cache: 512 kB (per core). Built on 45 nm process technology. Socket: AM3. Thermal design power (TDP): 125 Watt. Memory support: DDR3. Passmark benchmark score: 3,412 points. Launch price was $149.
Processing Power
The Xeon E5-4603 packs 4 cores / 8 threads, while the Phenom II X6 1065T offers 6 cores / 6 threads — the Phenom II X6 1065T has 2 more cores. Boost clocks reach 2 GHz on the Xeon E5-4603 versus 3.4 GHz on the Phenom II X6 1065T — a 51.9% clock advantage for the Phenom II X6 1065T (base: 2 GHz vs 2.9 GHz). The Xeon E5-4603 uses the Sandy Bridge-EP (2012) architecture (32 nm), while the Phenom II X6 1065T uses Thuban (2010) (45 nm). In PassMark, the Xeon E5-4603 scores 3,391 against the Phenom II X6 1065T's 3,412 — a 0.6% lead for the Phenom II X6 1065T. L3 cache: 10240 kB (total) on the Xeon E5-4603 vs 6 MB (total) on the Phenom II X6 1065T.
| Feature | Xeon E5-4603 | Phenom II X6 1065T |
|---|---|---|
| Cores / Threads | 4 / 8 | 6 / 6+50% |
| Boost Clock | 2 GHz | 3.4 GHz+70% |
| Base Clock | 2 GHz | 2.9 GHz+45% |
| L3 Cache | 10240 kB (total)+67% | 6 MB (total) |
| L2 Cache | 256 kB (per core) | 512 kB (per core)+100% |
| Process | 32 nm-29% | 45 nm |
| Architecture | Sandy Bridge-EP (2012) | Thuban (2010) |
| PassMark | 3,391 | 3,412 |
Memory & Platform
The Xeon E5-4603 uses the LGA2011 socket (PCIe 2.0), while the Phenom II X6 1065T uses AM3 (PCIe 2.0) — making them incompatible on the same motherboard.
| Feature | Xeon E5-4603 | Phenom II X6 1065T |
|---|---|---|
| Socket | LGA2011 | AM3 |
| PCIe Generation | PCIe 2.0 | PCIe 2.0 |
Value Analysis
The Xeon E5-4603 launched at $202 MSRP, while the Phenom II X6 1065T debuted at $426. At current prices ($80 vs $170), the Xeon E5-4603 is $90 cheaper. In terms of value (PassMark points per dollar), the Xeon E5-4603 delivers 42.4 pts/$ vs 20.1 pts/$ for the Phenom II X6 1065T — making the Xeon E5-4603 the 71.5% better value option.
| Feature | Xeon E5-4603 | Phenom II X6 1065T |
|---|---|---|
| MSRP | $202-53% | $426 |
| Avg Price (30d) | $80-53% | $170 |
| Performance per Dollar | 42.4+111% | 20.1 |
| Release Date | 2012 | 2010 |
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