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.

Overview

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.

Value Upgrade Path

This is the official ChipVERSUS Value Rating, comparing raw performance (PassMark) per dollar. The Core i7-3960X Extreme Edition is positioned at rank #951 in our cost-efficiency ranking, representing a Lower cost-benefit for your build. Components placed above yours deliver better value for money.

MSRP is the manufacturer's suggested retail price.•
Avg price is the current average price collected from markets across the web.

Performance Per Dollar Core i7-3960X Extreme Edition

Ryzen 9 7950X

MSRP: $194|Avg: $20

24759%

Core i9-10900T

MSRP: $120|Avg: $5

23395%

Ryzen 3 PRO 4355GE

MSRP: $423|Avg: $5

16986%

Ryzen Threadripper 3960X

MSRP: $1399|Avg: $85

5117%

Ryzen 9 9950X

MSRP: $649|Avg: $129

4053%

Ryzen 5 8400F

MSRP: $303|Avg: $55

3546%

Ryzen 7 PRO 2700

MSRP: $299|Avg: $60

2031%

Ryzen 5 2600X

MSRP: $229|Avg: $55

2004%

Ryzen 3 PRO 5350G

MSRP: $150|Avg: $60

1825%

#10

Core Ultra 5 245KF

MSRP: $294|Avg: $189

1825%

#11

Ryzen 5 5500

MSRP: $159|Avg: $85

1805%

#12

Ryzen 5 3600

MSRP: $199|Avg: $80

1756%

#13

Core i3-9100E

MSRP: $202|Avg: $30

1731%

#14

Core Ultra 5 245K

MSRP: $319|Avg: $200

1724%

#15

Core i3-8300T

MSRP: $138|Avg: $25

1709%

#951

Core i7-3960X Extreme Edition

MSRP: $990|Avg: $150

100%

#952

Celeron E1200

MSRP: $53|Avg: $98

100%

#954

Core i5-660

MSRP: $196|Avg: $150

99%

#955

Athlon II X2 250

MSRP: $87|Avg: $15

99%

#956

Core i3-2120T

MSRP: $127|Avg: $38

98%

#957

Phenom II X3 720

MSRP: $130|Avg: $64

98%

#958

Pentium E6300

MSRP: $84|Avg: $15

98%

#959

Core i5-661

MSRP: $196|Avg: $40

97%

#960

Core i3-4150

MSRP: $281|Avg: $70

96%

#961

Core i5-750

MSRP: $210|Avg: $30

96%

#962

Core i3-2100T

MSRP: $127|Avg: $127

96%

#963

Pentium E2210

MSRP: $84|Avg: $15

95%

#964

Core i3-560

MSRP: $138|Avg: $10

95%

#965

Core i3-550

MSRP: $138|Avg: $5

94%

#966

Core i7-980

MSRP: $583|Avg: $50

94%

Based on actual market prices and performance synthetic scores.

FPS Benchmarks

Predicted performance for Core i7-3960X Extreme Edition across popular games. Tested paired with RTX 4090 to isolate CPU performance.

Technical Analysis

Detailed breakdown of Core i7-3960X Extreme Edition specifications and capabilities.

⚡

Processing Power

The Core i7-3960X Extreme Edition is a 6-core / 12-thread processor based on the Sandy Bridge (2011−2013) architecture, manufactured on a 32 nm process node. It reaches a maximum boost clock of 3.3 GHz— higher boost clocks directly translate to better single-threaded performance and responsiveness in gaming. It carries 15 MB of L3 cache, plus 1,536 kB of L2 cache. In the PassMark benchmark (a comprehensive multi-threaded test), it scores 12,460, placing it in the Budget performance tier as a Legacy generation product. Geekbench 6 single-core (the most relevant metric for gaming FPS) records 800.

Specification	Core i7-3960X Extreme Edition
Cores / ThreadsPhysical/logical processing units	6C / 12T
Max Boost ClockPeak single-core speed under boost	3.3 GHz
ArchitectureCPU microarchitecture design	Sandy Bridge (2011−2013)
Process NodeFabrication technology — smaller = more efficient	32 nm
L3 CacheShared cache — reduces memory latency for all cores	15 MB
L2 CachePer-core fast cache for frequently accessed data	1,536 kB
Die SizePhysical silicon area of the processor	434.72 mm2
Transistor CountMore transistors = more capabilities	2270 Million
Bus SpeedData bus frequency	5 GT/s
64-bit Support	Yes
Windows 11 Compatible	No
PassMark ScoreOverall multi-threaded benchmark score	12,460
Geekbench 6 SingleSingle-core performance — most relevant for gaming	800

🧠

Memory & Platform

Integrated graphics: None — allows display output without a dedicated GPU, useful for troubleshooting and light tasks.

Specification	Core i7-3960X Extreme Edition
TypeDesktop or Laptop processor	desktop
SeriesProduct family	Intel Core i7EE
PCIe GenerationPeripheral interconnect speed — affects GPU and SSD bandwidth	PCIe 2.0
PCIe LanesTotal available lanes for GPUs, NVMe drives, and expansion	40
Max RAM SpeedMaximum officially supported memory frequency	DDR3-1600
Max RAM CapacityMaximum installable memory	64 GB
RAM ChannelsDual-channel doubles bandwidth vs single-channel	4
ECC SupportError-Correcting Code memory — prevents data corruption	No
Integrated GPUBuilt-in graphics processor	None
Compatible ChipsetsMotherboard chipsets that support this CPU	X79
Max CPUs in ConfigMulti-socket support for servers	1 (Uniprocessor)

🔧

Advanced Features

The Core i7-3960X Extreme Edition is primarily designed for HEDT Desktop. It features an unlocked multiplier, allowing enthusiasts to overclock beyond stock frequencies for additional performance. Virtualization: VT-x, VT-d, EPT — enables running virtual machines efficiently (important for development and server workloads). Its primary market competitor is the FX-8350.

Specification	Core i7-3960X Extreme Edition
Primary Use CaseIntended workload category	HEDT Desktop
OverclockingWhether CPU clock can be manually increased	✅ Unlocked
AVX-512Advanced vector instructions for AI/ML workloads	❌ Not Supported
VirtualizationHardware-assisted virtualization technology	VT-x, VT-d, EPT
Direct CompetitorMarket equivalent from rival manufacturer	FX-8350

🌡️

Power & Cooling

The Core i7-3960X Extreme Edition has a rated TDP (Thermal Design Power) of 130 Watt — this indicates the amount of heat generated under sustained load and determines what cooling solution is needed. No stock cooler is included — you will need to purchase an aftermarket cooler separately. Recommended cooling: Aftermarket.

Specification	Core i7-3960X Extreme Edition
TDPThermal Design Power — heat output under sustained workload	130 Watt
Included CoolerStock cooler bundled in the box	No
Recommended CoolerSuggested aftermarket cooling solution	Aftermarket

💰

Value Analysis

At an average price of $150 (MSRP: $990), the Core i7-3960X Extreme Edition delivers 83 PassMark points per dollar. It currently holds Rank #951 in the overall cost-benefit ranking — this ranking factors in performance-per-dollar relative to all available processors. Performance ranking position: #1387 out of all indexed processors.

Specification	Core i7-3960X Extreme Edition
MSRPManufacturer's Suggested Retail Price	$990
Avg Price (30d)Average market price over the last 30 days	$150
Launch PriceOriginal retail price at launch	$149
Cost-Benefit RankPosition in overall value ranking	#951
Performance RankPosition in overall performance ranking	#1387
Release DateLaunch date	14 November 2011 (14 years ago)
Release Year	2011
DesignerArchitecture designer (e.g. Intel, AMD)	Intel