
Core i7-3960X Extreme Edition

Xeon E5-1680 v2
Core i7-3960X Extreme Edition vs Xeon E5-1680 v2 Performance Spectrum
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.
Core i7-3960X Extreme Edition vs Xeon E5-1680 v2 FPS Benchmarks
Predicted gaming performance across popular games. Tested paired with GeForce RTX 5090 to isolate CPU performance.
Search any supported game below to compare 1080p FPS for both components.

Path of Exile 2

Counter-Strike 2

League of Legends

Valorant

Among Us

Apex Legends

ARC Raiders

Baldur's Gate 3

Call of Duty: Black Ops 6
Core i7-3960X Extreme Edition vs Xeon E5-1680 v2: Pros, Cons & Final Verdict
See where each CPU makes more sense in practice: gaming, heavier work, platform cost, power draw, and upgrade path.
Core i7-3960X Extreme Edition
2011Why buy it
- ✅+0.5% higher PassMark.
- ✅Costs $733 less on MSRP ($990 MSRP vs $1,723 MSRP).
- ✅Delivers 74.9% more PassMark for each dollar spent, at 12.6 vs 7.2 PassMark/$ ($990 MSRP vs $1,723 MSRP).
Trade-offs
- ❌Worse for gaming: lower average FPS than Xeon E5-1680 v2 across 50 shared CPU benchmark tests.
- ❌Smaller total L3 cache (15 MB vs 25 MB).
- ❌Less compelling for workstation-style loads than Xeon E5-1680 v2, which brings 8 cores / 16 threads.
Xeon E5-1680 v2
2013Why buy it
- ✅Better for gaming: +21.4% higher average FPS across 50 shared CPU benchmark tests.
- ✅+66.7% larger total L3 cache (25 MB vs 15 MB).
- ✅Better for workstations and heavier parallel workloads: 8 cores / 16 threads.
Trade-offs
- ❌Lower PassMark (12,396 vs 12,460).
- ❌Lower PassMark per dollar, at 7.2 vs 12.6 PassMark/$ ($1,723 MSRP vs $990 MSRP).
Quick Answers
So, is Core i7-3960X Extreme Edition better than Xeon E5-1680 v2?
Which one is better for streaming, content creation, and heavy multitasking?
Which one is the smarter buy today, not just the cheaper CPU?
Which one is more future-proof for 2026 and beyond?
Core i7-3960X Extreme Edition vs Xeon E5-1680 v2 Technical Specifications
Side-by-side specs, architecture details, clocks, memory, power, and platform differences.

Core i7-3960X Extreme Edition
The Core i7-3960X Extreme Edition is manufactured by Intel. It was released in 14 November 2011 (14 years ago). It is based on the Sandy Bridge (2011−2013) architecture. It features 6 cores and 12 threads. Max frequency: 3.3 GHz. L3 cache: 15 MB. L2 cache: 1,536 kB. Built on 32 nm process technology. Thermal design power (TDP): 130 Watt. Passmark benchmark score: 12,460 points. Launch price was $149.

Xeon E5-1680 v2
The Xeon E5-1680 v2 is manufactured by Intel. It was released in 2015-01-01. It is based on the Ivy Bridge-EP (2013) architecture. It features 8 cores and 16 threads. Base frequency is 3 GHz, with boost up to 3.9 GHz. L3 cache: 25 MB (total). L2 cache: 256K (per core). Built on 22 nm process technology. Socket: LGA2011. Thermal design power (TDP): 130 Watt. Memory support: DDR3-800, DDR3-1066, DDR3-1333, DDR3-1600, DDR3-1866. Passmark benchmark score: 12,396 points. Launch price was $800.
Processing Power
The Core i7-3960X Extreme Edition packs 6 cores / 12 threads, while the Xeon E5-1680 v2 offers 8 cores / 16 threads — the Xeon E5-1680 v2 has 2 more cores. Boost clocks reach 3.3 GHz on the Core i7-3960X Extreme Edition versus 3.9 GHz on the Xeon E5-1680 v2 — a 16.7% clock advantage for the Xeon E5-1680 v2. The Core i7-3960X Extreme Edition uses the Sandy Bridge (2011−2013) architecture (32 nm), while the Xeon E5-1680 v2 uses Ivy Bridge-EP (2013) (22 nm). In PassMark, the Core i7-3960X Extreme Edition scores 12,460 against the Xeon E5-1680 v2's 12,396 — a 0.5% lead for the Core i7-3960X Extreme Edition. Geekbench 6 single-core — the metric most relevant to gaming — records 800 vs 750, a 6.5% lead for the Core i7-3960X Extreme Edition that directly translates to higher frame rates. L3 cache: 15 MB on the Core i7-3960X Extreme Edition vs 25 MB (total) on the Xeon E5-1680 v2.
| Feature | Core i7-3960X Extreme Edition | Xeon E5-1680 v2 |
|---|---|---|
| Cores / Threads | 6 / 12 | 8 / 16+33% |
| Boost Clock | 3.3 GHz | 3.9 GHz+18% |
| Base Clock | — | 3 GHz |
| L3 Cache | 15 MB | 25 MB (total)+67% |
| L2 Cache | 1,536 kB+500% | 256K (per core) |
| Process | 32 nm | 22 nm-31% |
| Architecture | Sandy Bridge (2011−2013) | Ivy Bridge-EP (2013) |
| PassMark | 12,460 | 12,396 |
| Cinebench R23 Multi | — | 8,579 |
| Geekbench 6 Single | 800+7% | 750 |
| Geekbench 6 Multi | — | 4,500 |
Memory & Platform
Maximum memory speed reaches DDR3-1600 on the Core i7-3960X Extreme Edition versus DDR3-1866 on the Xeon E5-1680 v2 — the Xeon E5-1680 v2 supports 16.6% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Xeon E5-1680 v2 supports up to 256 GB of RAM compared to 64 GB — 300% more capacity for professional workloads. Both feature 4-channel memory with ECC support. Both provide 40 PCIe lanes. Chipset compatibility: X79 (Core i7-3960X Extreme Edition) and C602,X79 (Xeon E5-1680 v2).
| Feature | Core i7-3960X Extreme Edition | Xeon E5-1680 v2 |
|---|---|---|
| Socket | — | LGA2011 |
| PCIe Generation | PCIe 2.0 | PCIe 3.0+50% |
| Max RAM Speed | DDR3-1600 | DDR3-1866+17% |
| Max RAM Capacity | 64 GB | 256 GB+300% |
| RAM Channels | 4 | 4 |
| ECC Support | No | Yes |
| PCIe Lanes | 40 | 40 |
Advanced Features
Both processors feature an unlocked multiplier for overclocking. Both support VT-x, VT-d, EPT virtualization. Primary use case: Core i7-3960X Extreme Edition targets HEDT Desktop, Xeon E5-1680 v2 targets Server/Workstation. Direct competitor: Core i7-3960X Extreme Edition rivals FX-8350; Xeon E5-1680 v2 rivals Core i7-4960X.
| Feature | Core i7-3960X Extreme Edition | Xeon E5-1680 v2 |
|---|---|---|
| Integrated GPU | No | No |
| IGPU Model | None | None |
| Unlocked | Yes | Yes |
| AVX-512 | No | No |
| Virtualization | VT-x, VT-d, EPT | VT-x, VT-d, EPT |
| Target Use | HEDT Desktop | Server/Workstation |
Value Analysis
At launch, the Core i7-3960X Extreme Edition was priced at $990, while the Xeon E5-1680 v2 came in at $1723. On launch pricing ($990 vs $1723), Core i7-3960X Extreme Edition was $733 cheaper. In terms of value on MSRP (PassMark points per dollar), the Core i7-3960X Extreme Edition delivers 12.6 pts/$ vs 7.2 pts/$ for the Xeon E5-1680 v2 — making the Core i7-3960X Extreme Edition the 54.5% better value option.
| Feature | Core i7-3960X Extreme Edition | Xeon E5-1680 v2 |
|---|---|---|
| MSRP | $990-43% | $1723 |
| Performance per Dollar | 12.6+75% | 7.2 |
| Release Date | 2011 | 2013 |
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