Core i7-6800K vs Xeon E5-4650 v3
Core i7-6800K
Xeon E5-4650 v3
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 Core i7-6800K is positioned at rank 691 and the Xeon E5-4650 v3 is on rank 334, so the Xeon E5-4650 v3 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Core i7-6800K
Performance Per Dollar Xeon E5-4650 v3
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core i7-6800K | Xeon E5-4650 v3 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ⚠️ Higher cost ($120) | ✅ More affordable ($0) |
| Longevity | 🛑 Legacy (Broadwell-E (2016) / 14 nm) | 🛑 Legacy (Haswell-EP (2014−2015) / 22 nm) |
💎 Value Proposition
| Insight | Core i7-6800K | Xeon E5-4650 v3 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ⚠️ Higher cost ($120) | ✅ 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 Core i7-6800K and Xeon E5-4650 v3
Core i7-6800K
The Core i7-6800K is manufactured by Intel. It was released in 31 May 2016 (9 years ago). It is based on the Broadwell-E (2016) architecture. It features 6 cores and 12 threads. Base frequency is 3.4 GHz, with boost up to 3.8 GHz. L3 cache: 15 MB (total). L2 cache: 256 kB (per core). Built on 14 nm process technology. Socket: LGA2011. Thermal design power (TDP): 140 Watt. Memory support: DDR4. Passmark benchmark score: 10,715 points. Launch price was $345.
Xeon E5-4650 v3
The Xeon E5-4650 v3 is manufactured by Intel. It was released in 2015-01-01. It is based on the Haswell-EP (2014−2015) architecture. It features 12 cores and 24 threads. Base frequency is 2.1 GHz, with boost up to 2.8 GHz. L3 cache: 30 MB (total). L2 cache: 256K (per core). Built on 22 nm process technology. Socket: LGA2011. Thermal design power (TDP): 105 Watt. Memory support: DDR4. Passmark benchmark score: 10,838 points. Launch price was $800.
Processing Power
The Core i7-6800K packs 6 cores / 12 threads, while the Xeon E5-4650 v3 offers 12 cores / 24 threads — the Xeon E5-4650 v3 has 6 more cores. Boost clocks reach 3.8 GHz on the Core i7-6800K versus 2.8 GHz on the Xeon E5-4650 v3 — a 30.3% clock advantage for the Core i7-6800K (base: 3.4 GHz vs 2.1 GHz). The Core i7-6800K uses the Broadwell-E (2016) architecture (14 nm), while the Xeon E5-4650 v3 uses Haswell-EP (2014−2015) (22 nm). In PassMark, the Core i7-6800K scores 10,715 against the Xeon E5-4650 v3's 10,838 — a 1.1% lead for the Xeon E5-4650 v3. L3 cache: 15 MB (total) on the Core i7-6800K vs 30 MB (total) on the Xeon E5-4650 v3.
| Feature | Core i7-6800K | Xeon E5-4650 v3 |
|---|---|---|
| Cores / Threads | 6 / 12 | 12 / 24+100% |
| Boost Clock | 3.8 GHz+36% | 2.8 GHz |
| Base Clock | 3.4 GHz+62% | 2.1 GHz |
| L3 Cache | 15 MB (total) | 30 MB (total)+100% |
| L2 Cache | 256 kB (per core) | 256K (per core) |
| Process | 14 nm-36% | 22 nm |
| Architecture | Broadwell-E (2016) | Haswell-EP (2014−2015) |
| PassMark | 10,715 | 10,838+1% |
Memory & Platform
Both processors use the LGA2011 socket with PCIe 3.0.
| Feature | Core i7-6800K | Xeon E5-4650 v3 |
|---|---|---|
| Socket | LGA2011 | LGA2011 |
| PCIe Generation | PCIe 3.0 | PCIe 5.0+67% |
Top Performing CPUs
The most powerful cpus ranked by PassMark CPU Mark benchmark scores.
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