Core i7-12700K vs Xeon E3-1205 v6
Core i7-12700K
Xeon E3-1205 v6
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.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Core i7-12700K
Performance Per Dollar Xeon E3-1205 v6
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core i7-12700K | Xeon E3-1205 v6 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ⚠️ Higher cost ($285) | ✅ More affordable ($0) |
| Longevity | ✨ Modern (Alder Lake, Golden Cove, Gracemont (2021) / 10 nm) | ✨ Modern (Kaby Lake (2016−2019) / 14 nm) |
💎 Value Proposition
| Insight | Core i7-12700K | Xeon E3-1205 v6 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ⚠️ Higher cost ($285) | ✅ 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 i7-12700K and Xeon E3-1205 v6
Core i7-12700K
The Core i7-12700K is manufactured by Intel. It was released in 4 November 2021 (4 years ago). It is based on the Alder Lake, Golden Cove, Gracemont (2021) architecture. It features 12 cores and 20 threads. Base frequency is 3.6 GHz, with boost up to 5 GHz. L3 cache: 25 MB (total). L2 cache: 1.25 MB (per core). Built on 10 nm process technology. Socket: LGA1700. Thermal design power (TDP): 125 Watt. Memory support: DDR4, DDR5. Passmark benchmark score: 34,347 points. Launch price was $409.
Xeon E3-1205 v6
The Xeon E3-1205 v6 is manufactured by Intel. It was released in 28 March 2017 (8 years ago). It is based on the Kaby Lake (2016−2019) architecture. It features 4 cores and 4 threads. Base frequency is 3 GHz, with boost up to 3 GHz. L3 cache: 8 MB. L2 cache: 1 MB. Built on 14 nm process technology. Socket: LGA1151. Thermal design power (TDP): 65 Watt. Memory support: DDR4-2400, DDR3L-1866. Passmark benchmark score: 5,682 points. Launch price was $193.
Processing Power
The Core i7-12700K packs 12 cores / 20 threads, while the Xeon E3-1205 v6 offers 4 cores / 4 threads — the Core i7-12700K has 8 more cores. Boost clocks reach 5 GHz on the Core i7-12700K versus 3 GHz on the Xeon E3-1205 v6 — a 50% clock advantage for the Core i7-12700K (base: 3.6 GHz vs 3 GHz). The Core i7-12700K uses the Alder Lake, Golden Cove, Gracemont (2021) architecture (10 nm), while the Xeon E3-1205 v6 uses Kaby Lake (2016−2019) (14 nm). In PassMark, the Core i7-12700K scores 34,347 against the Xeon E3-1205 v6's 5,682 — a 143.2% lead for the Core i7-12700K. L3 cache: 25 MB (total) on the Core i7-12700K vs 8 MB on the Xeon E3-1205 v6.
| Feature | Core i7-12700K | Xeon E3-1205 v6 |
|---|---|---|
| Cores / Threads | 12 / 20+200% | 4 / 4 |
| Boost Clock | 5 GHz+67% | 3 GHz |
| Base Clock | 3.6 GHz+20% | 3 GHz |
| L3 Cache | 25 MB (total)+213% | 8 MB |
| L2 Cache | 1.25 MB (per core)+25% | 1 MB |
| Process | 10 nm-29% | 14 nm |
| Architecture | Alder Lake, Golden Cove, Gracemont (2021) | Kaby Lake (2016−2019) |
| PassMark | 34,347+504% | 5,682 |
Memory & Platform
The Core i7-12700K uses the LGA1700 socket (PCIe 5.0), while the Xeon E3-1205 v6 uses LGA1151 (PCIe 3.0) — making them incompatible on the same motherboard.
| Feature | Core i7-12700K | Xeon E3-1205 v6 |
|---|---|---|
| Socket | LGA1700 | LGA1151 |
| PCIe Generation | PCIe 5.0+67% | PCIe 3.0 |
| Max RAM Speed | 4800 | — |
| Max RAM Capacity | 128 | — |
| RAM Channels | 2 | — |
| ECC Support | ✅ | — |
| PCIe Lanes | 20 | — |
Advanced Features
Virtualization: VT-x, VT-d (Core i7-12700K) / not specified (Xeon E3-1205 v6). The Core i7-12700K includes integrated graphics (Intel UHD Graphics 770), while the Xeon E3-1205 v6 requires a dedicated GPU. Direct competitor: Core i7-12700K rivals Ryzen 7 5800X.
| Feature | Core i7-12700K | Xeon E3-1205 v6 |
|---|---|---|
| Integrated GPU | Yes | — |
| IGPU Model | Intel UHD Graphics 770 | — |
| Unlocked | Yes | — |
| AVX-512 | No | — |
| Virtualization | VT-x, VT-d | — |
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The most powerful cpus ranked by PassMark CPU Mark benchmark scores.
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