Core i7-6900K vs Core i5-12400F

Core i7-6900K

8 Cores16 Thrd140 WWMax: 4 GHz2016

Core i5-12400F

6 Cores12 Thrd65 WWMax: 4.4 GHz2022

Performance Spectrum - CPU

Core i7-6900K

8 / 16

14,682

0.0%

19,532

+33.0%

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.

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 i7-6900K

#287

Core Ultra 9 285T

MSRP: $549|Avg: $549

499%

#288

Ryzen Threadripper 1950

MSRP: $999|Avg: $300

164%

#288

Core i5-12500TE

MSRP: $225|Avg: $225

495%

#289

Athlon Silver PRO 3125GE

MSRP: $108|Avg: $70

491%

#290

Core i9-10900KF

MSRP: $509|Avg: $336

491%

#291

Core i9-7900X

MSRP: $999|Avg: $188

155%

#291

Core i9-14900T

MSRP: $549|Avg: $577

491%

#292

Core i5-13500T

MSRP: $342|Avg: $342

491%

#293

Core i3-10300

MSRP: N/A|Avg: $140.49

491%

#294

Core i9-10900F

MSRP: $464|Avg: $300

490%

#294

Core i9-7920X

MSRP: $1199|Avg: $236

145%

#295

Ryzen 7 5800X3D

MSRP: $449|Avg: $429

489%

#295

Core i9-7940X

MSRP: $1399|Avg: $275

135%

#296

Core i7-9700F

MSRP: $323|Avg: $200

488%

#297

Ryzen Threadripper 9960X

MSRP: $1499|Avg: $1419

485%

#298

Core i5-9500F

MSRP: $187|Avg: $154

481%

#298

Core i9-7960X

MSRP: $1699|Avg: $185

122%

#299

Core i9-11900KB

MSRP: $539|Avg: $350

481%

#299

Core i9-7980XE

MSRP: $1999|Avg: $300

110%

#300

Core i7-10700F

MSRP: $310|Avg: $250

479%

#301

Core i7-10700T

MSRP: $355|Avg: $200

478%

#302

Core i7-6900K

MSRP: $1089|Avg: $1089

100%

#302

Celeron G5920

MSRP: $52|Avg: $40

478%

#303

Core i3-10105T

MSRP: $122|Avg: $122

475%

#303

Core i7-5960X

MSRP: $999|Avg: $83

99%

#304

Core i7-6950X

MSRP: $1723|Avg: $180

76%

#304

Celeron G5900

MSRP: $50|Avg: $42

474%

#305

Core 5 120

MSRP: $340|Avg: $340

472%

#306

Core i7-12700T

MSRP: $339|Avg: $337

467%

#307

Core 3 100HL

MSRP: $306|Avg: $280

466%

#308

Core i9-11900F

MSRP: N/A|Avg: $358.87

456%

Based on actual market prices and performance synthetic scores.

Performance Per Dollar Core i5-12400F

#15

Core i3-8300T

MSRP: $138|Avg: $25

121%

#16

Core Ultra 5 225F

MSRP: $231|Avg: $150

118%

#17

Core Ultra 7 265K

MSRP: $309|Avg: $285

116%

#18

Ryzen 9 3900

MSRP: $499|Avg: $150

115%

#19

Ryzen 5 3600X

MSRP: $249|Avg: $90

113%

#20

Core i7-14700KF

MSRP: $384|Avg: $260

113%

#21

Core i7-14700K

MSRP: $409|Avg: $270

109%

#22

Ryzen 5 4500

MSRP: $129|Avg: $85

106%

#23

Ryzen 5 5600

MSRP: $199|Avg: $115

106%

#24

Celeron G5925

MSRP: $62|Avg: $15

105%

#25

Ryzen 5 7500F

MSRP: $179|Avg: $145

104%

#26

Core Ultra 5 245

MSRP: $319|Avg: $220

103%

#27

Ryzen 7 2700

MSRP: $299|Avg: $86

102%

#28

Core Ultra 7 265KF

MSRP: $379|Avg: $323

102%

#29

Core Ultra 7 265F

MSRP: $369|Avg: $276

100%

#30

Core i5-12400F

MSRP: $174|Avg: $110

100%

#31

Ryzen 3 PRO 5355G

MSRP: $130|Avg: $80

99%

#32

Ryzen 7 2700X

MSRP: $329|Avg: $100

98%

#33

Core i3-10100F

MSRP: $88|Avg: $50

98%

#34

Ryzen 5 7400F

MSRP: $150|Avg: $147

98%

#35

Ryzen 5 9600X

MSRP: $279|Avg: $178

95%

#36

Ryzen 7 3800X

MSRP: $399|Avg: $140

93%

#37

Ryzen 3 5300G

MSRP: $130|Avg: $80

92%

#38

Ryzen 9 7900X

MSRP: $549|Avg: $316

91%

#39

Ryzen 5 5600X

MSRP: $299|Avg: $135

91%

#40

Core i5-14600KF

MSRP: $304|Avg: $239

91%

#41

Ryzen 7 5800

MSRP: $349|Avg: $160

91%

#42

Core i3-14100F

MSRP: $109|Avg: $96

90%

#43

Ryzen 7 3700X

MSRP: $329|Avg: $140

90%

#44

Ryzen 5 7600X

MSRP: $299|Avg: $178

90%

#45

Ryzen 3 3100

MSRP: $99|Avg: $75

90%

Based on actual market prices and performance synthetic scores.

Performance Comparison

About PassMark

🏆 Chipversus Verdict

🚀 Performance Leadership

Generational Difference: This comparison involves processors from different technological eras. The Core i5-12400F (2022) utilizes Intel 7 nm technology and DDR5-4800, DDR4-3200, providing a fundamental performance advantage.

Insight	Core i7-6900K	Core i5-12400F
Gaming	❌ Lower gaming performance	✅ Superior gaming performance
Workstation	❌ Weaker in multi-core tasks	✅ Better multi-core power
Price	⚠️ Higher cost ($1,089)	✅ More affordable ($110)
Longevity	🛑 Legacy (Broadwell-E (2016) / 14 nm)	✨ Modern (Alder Lake-S (2022) / Intel 7 nm)

💎 Value Proposition

The Core i7-6900K (2016) relies on 14 nm technology and DDR4, placing it in a different performance category relative to modern standards.

Insight	Core i7-6900K	Core i5-12400F
Cost Efficiency	❌ Lower cost efficiency	✅ Better overall value (+1217%)
Upfront Cost	⚠️ Higher cost ($1,089)	✅ More affordable ($110)

Performance Check

Paired with RTX 4090

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.

Core i7-6900K Benchmark Check

Core i5-12400F Benchmark Check

Technical Specifications

Side-by-side comparison of Core i7-6900K and Core i5-12400F

Core i7-6900K

The Core i7-6900K 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 8 cores and 16 threads. Base frequency is 3.2 GHz, with boost up to 4 GHz. L3 cache: 20 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: 14,682 points. Launch price was $1,020.

Core i5-12400F

The Core i5-12400F is manufactured by Intel. It was released in 4 January 2022 (3 years ago). It is based on the Alder Lake-S (2022) architecture. It features 6 cores and 12 threads. Base frequency is 2.5 GHz, with boost up to 4.4 GHz. L3 cache: 18 MB (total). L2 cache: 1.25 MB (per core). Built on Intel 7 nm process technology. Socket: LGA1700. Thermal design power (TDP): 65 Watt. Memory support: DDR5-4800, DDR4-3200. Passmark benchmark score: 19,532 points. Launch price was $180.

⚡

Processing Power

The Core i7-6900K packs 8 cores / 16 threads, while the Core i5-12400F offers 6 cores / 12 threads — the Core i7-6900K has 2 more cores. Boost clocks reach 4 GHz on the Core i7-6900K versus 4.4 GHz on the Core i5-12400F — a 9.5% clock advantage for the Core i5-12400F (base: 3.2 GHz vs 2.5 GHz). The Core i7-6900K uses the Broadwell-E (2016) architecture (14 nm), while the Core i5-12400F uses Alder Lake-S (2022) (Intel 7 nm). In PassMark, the Core i7-6900K scores 14,682 against the Core i5-12400F's 19,532 — a 28.4% lead for the Core i5-12400F. Geekbench 6 single-core — the metric most relevant to gaming — records 1,273 vs 1,700, a 28.7% lead for the Core i5-12400F that directly translates to higher frame rates. Multi-core Geekbench: 7,591 vs 657 (168.1% advantage for the Core i7-6900K). L3 cache: 20 MB (total) on the Core i7-6900K vs 18 MB (total) on the Core i5-12400F.

Feature	Core i7-6900K	Core i5-12400F
Cores / Threads	8 / 16+33%	6 / 12
Boost Clock	4 GHz	4.4 GHz+10%
Base Clock	3.2 GHz+28%	2.5 GHz
L3 Cache	20 MB (total)+11%	18 MB (total)
L2 Cache	256 kB (per core)	1.25 MB (per core)+400%
Process	14 nm	Intel 7 nm-50%
Architecture	Broadwell-E (2016)	Alder Lake-S (2022)
PassMark	14,682	19,532+33%
Cinebench R23 Multi	—	12,380
Geekbench 6 Single	1,273	1,700+34%
Geekbench 6 Multi	7,591+1055%	657

🧠

Memory & Platform

The Core i7-6900K uses the LGA2011 socket (PCIe 3.0), while the Core i5-12400F uses LGA1700 (PCIe 3.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-2400 on the Core i7-6900K versus DDR5-4800, DDR4-3200 on the Core i5-12400F — the Core i5-12400F supports 22.2% faster memory, which can translate to measurable gains in memory-sensitive workloads. Both support up to 128 GB of RAM. Memory channels: 4 (Core i7-6900K) vs 2 (Core i5-12400F). PCIe lanes: 40 (Core i7-6900K) vs 20 (Core i5-12400F) — the Core i7-6900K offers 20 more lanes for additional GPUs or NVMe drives. Chipset compatibility: X99 (Core i7-6900K) and H610,B660,H670,Z690,B760,H770,Z790 (Core i5-12400F).

Feature	Core i7-6900K	Core i5-12400F
Socket	LGA2011	LGA1700
PCIe Generation	PCIe 3.0	PCIe 3.0
Max RAM Speed	DDR4-2400	DDR5-4800, DDR4-3200+25%
Max RAM Capacity	128 GB	128 GB
RAM Channels	4+100%	2
ECC Support	❌	❌
PCIe Lanes	40+100%	20

🔧

Advanced Features

Virtualization support: VT-x, VT-d (Core i7-6900K) vs VT-x, VT-d, EPT (Core i5-12400F). Primary use case: Core i7-6900K targets High-End Desktop, Core i5-12400F targets Gaming Performance/Value. Direct competitor: Core i5-12400F rivals Ryzen 5 5600.

Feature	Core i7-6900K	Core i5-12400F
Integrated GPU	No	No
IGPU Model	None	—
Unlocked	Yes	—
AVX-512	No	—
Virtualization	VT-x, VT-d	VT-x, VT-d, EPT
Target Use	High-End Desktop	Gaming Performance/Value

💰

Value Analysis

The Core i7-6900K launched at $1089 MSRP, while the Core i5-12400F debuted at $174. At current prices ($1089 vs $110), the Core i5-12400F is $979 cheaper. In terms of value (PassMark points per dollar), the Core i7-6900K delivers 13.5 pts/$ vs 177.6 pts/$ for the Core i5-12400F — making the Core i5-12400F the 171.8% better value option.