Xeon E3-1285 v6 vs Core i7-7740X
Xeon E3-1285 v6
Core i7-7740X
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 E3-1285 v6 is positioned at rank 455 and the Core i7-7740X is on rank 614, so the Xeon E3-1285 v6 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Xeon E3-1285 v6
Performance Per Dollar Core i7-7740X
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Xeon E3-1285 v6 | Core i7-7740X |
|---|---|---|
| Gaming | Balanced gaming performance | Balanced gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ⚠️ Higher cost ($450) | ✅ More affordable ($150) |
| Longevity | ✨ Modern (Kaby Lake-DT (2017) / 14 nm) | ✨ Modern (Kaby Lake-X (2017) / 14 nm) |
💎 Value Proposition
| Insight | Xeon E3-1285 v6 | Core i7-7740X |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ✅ Better overall value (+206%) |
| Upfront Cost | ⚠️ Higher cost ($450) | ✅ More affordable ($150) |
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 E3-1285 v6 and Core i7-7740X
Xeon E3-1285 v6
The Xeon E3-1285 v6 is manufactured by Intel. It was released in 1 August 2017 (8 years ago). It is based on the Kaby Lake-DT (2017) architecture. It features 4 cores and 8 threads. Base frequency is 4.1 GHz, with boost up to 4.5 GHz. L3 cache: 8 MB (total). L2 cache: 256K (per core). Built on 14 nm process technology. Socket: LGA1151. Thermal design power (TDP): 79 Watt. Memory support: DDR4-2400, DDR3L-1866. Passmark benchmark score: 9,502 points. Launch price was $450.
Core i7-7740X
The Core i7-7740X is manufactured by Intel. It was released in 26 June 2017 (8 years ago). It is based on the Kaby Lake-X (2017) architecture. It features 4 cores and 8 threads. Base frequency is 4.3 GHz, with boost up to 4.5 GHz. L3 cache: 8 MB (total). L2 cache: 256K (per core). Built on 14 nm process technology. Socket: LGA2066. Thermal design power (TDP): 112 Watt. Memory support: DDR4. Passmark benchmark score: 9,678 points. Launch price was $339.
Processing Power
Both the Xeon E3-1285 v6 and Core i7-7740X share an identical 4-core/8-thread configuration. Boost clocks reach 4.5 GHz on the Xeon E3-1285 v6 versus 4.5 GHz on the Core i7-7740X — identical boost frequencies (base: 4.1 GHz vs 4.3 GHz). The Xeon E3-1285 v6 uses the Kaby Lake-DT (2017) architecture (14 nm), while the Core i7-7740X uses Kaby Lake-X (2017) (14 nm). In PassMark, the Xeon E3-1285 v6 scores 9,502 against the Core i7-7740X's 9,678 — a 1.8% lead for the Core i7-7740X. Both processors carry 8 MB (total) of L3 cache.
| Feature | Xeon E3-1285 v6 | Core i7-7740X |
|---|---|---|
| Cores / Threads | 4 / 8 | 4 / 8 |
| Boost Clock | 4.5 GHz | 4.5 GHz |
| Base Clock | 4.1 GHz | 4.3 GHz+5% |
| L3 Cache | 8 MB (total) | 8 MB (total) |
| L2 Cache | 256K (per core) | 256K (per core) |
| Process | 14 nm | 14 nm |
| Architecture | Kaby Lake-DT (2017) | Kaby Lake-X (2017) |
| PassMark | 9,502 | 9,678+2% |
Memory & Platform
The Xeon E3-1285 v6 uses the LGA1151 socket (PCIe 5.0), while the Core i7-7740X uses LGA2066 (PCIe 3.0) — making them incompatible on the same motherboard.
| Feature | Xeon E3-1285 v6 | Core i7-7740X |
|---|---|---|
| Socket | LGA1151 | LGA2066 |
| PCIe Generation | PCIe 5.0+67% | PCIe 3.0 |
| Max RAM Speed | — | DDR4-2666 |
| Max RAM Capacity | — | 64 GB |
| RAM Channels | — | 2 |
| ECC Support | — | ❌ |
| PCIe Lanes | — | 16 |
Advanced Features
Virtualization: not specified (Xeon E3-1285 v6) / VT-x, VT-d (Core i7-7740X). Primary use case: Core i7-7740X targets Desktop.
| Feature | Xeon E3-1285 v6 | Core i7-7740X |
|---|---|---|
| Integrated GPU | — | No |
| Unlocked | — | Yes |
| AVX-512 | — | No |
| Virtualization | — | VT-x, VT-d |
| Target Use | — | Desktop |
Value Analysis
The Xeon E3-1285 v6 launched at $450 MSRP, while the Core i7-7740X debuted at $339.
| Feature | Xeon E3-1285 v6 | Core i7-7740X |
|---|---|---|
| MSRP | $450 | $339-25% |
| Avg Price (30d) | — | $150 |
| Release Date | 2017 | 2017 |
Top Performing CPUs
The most powerful cpus ranked by PassMark CPU Mark benchmark scores.
You May Also Compare
Similar CPU comparisons based on Xeon E3-1285 v6 and Core i7-7740X
