Core i3-2125 vs Core i7-9700K

Core i3-2125

2 Cores4 Thrd65 WWMax: 3.3 GHz2011

Core i7-9700K

8 Cores8 Thrd95 WWMax: 4.9 GHz2018

Performance Spectrum - CPU

Core i3-2125

2 / 4

2,082

0.0%

14,397

+591.5%

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. The Core i3-2125 is positioned at rank #892 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 i3-2125

Ryzen 9 7950X

MSRP: $194|Avg: $20

20059%

Core i9-10900T

MSRP: $120|Avg: $5

18954%

Ryzen 3 PRO 4355GE

MSRP: $423|Avg: $5

13762%

Ryzen Threadripper 3960X

MSRP: $1399|Avg: $85

4146%

Ryzen 9 9950X

MSRP: $649|Avg: $129

3284%

Ryzen 5 8400F

MSRP: $303|Avg: $55

2873%

Ryzen 7 PRO 2700

MSRP: $299|Avg: $60

1645%

Ryzen 5 2600X

MSRP: $229|Avg: $55

1624%

Ryzen 3 PRO 5350G

MSRP: $150|Avg: $60

1479%

#10

Core Ultra 5 245KF

MSRP: $294|Avg: $189

1479%

#11

Ryzen 5 5500

MSRP: $159|Avg: $85

1462%

#12

Ryzen 5 3600

MSRP: $199|Avg: $80

1423%

#13

Core i3-9100E

MSRP: $202|Avg: $30

1403%

#14

Core Ultra 5 245K

MSRP: $319|Avg: $200

1397%

#15

Core i3-8300T

MSRP: $138|Avg: $25

1384%

#299

Core i9-7980XE

MSRP: $1999|Avg: $300

95%

#891

Pentium G6951

MSRP: $89|Avg: $50

100%

#892

Core i3-2125

MSRP: $134|Avg: $15

100%

#894

Celeron G1820

MSRP: $110|Avg: $15

99%

#895

Celeron E1600

MSRP: $53|Avg: $10

99%

#896

Athlon II X2 270u

MSRP: $68|Avg: $10

99%

#897

Core i5-4570TE

MSRP: $202|Avg: $40

98%

#898

Core i3-2130

MSRP: $138|Avg: $138

96%

#901

Core i3-6100E

MSRP: $225|Avg: $50

95%

#902

Core i3-4330TE

MSRP: $138|Avg: $15

94%

#903

Pentium E5700

MSRP: $75|Avg: $15

94%

#905

Athlon II X3 420e

MSRP: $107|Avg: $15

94%

#906

Celeron E1500

MSRP: $53|Avg: $5

93%

Based on actual market prices and performance synthetic scores.

Performance Per Dollar Core i7-9700K

#259

Core i3-9100TE

MSRP: $122|Avg: $60

106%

#260

Core i5-12500T

MSRP: $302|Avg: $214

106%

#261

Core i9-13900

MSRP: $549|Avg: $599

105%

#262

Core i7-11700

MSRP: $323|Avg: $274

105%

#262

Core i7-8700K

MSRP: $359|Avg: $160

53%

#263

Core i9-13900T

MSRP: $549|Avg: $570

104%

#264

Processor 300T

MSRP: $82|Avg: $82

103%

#265

Athlon 3000G

MSRP: $49|Avg: $60

103%

#266

Athlon 220GE

MSRP: $65|Avg: $60

103%

#267

Ryzen 9 3900X

MSRP: $499|Avg: $441

102%

#268

Core i5-10500

MSRP: $200|Avg: $178

102%

#269

Celeron G6900T

MSRP: $42|Avg: $50

102%

#270

Core i9-10850K

MSRP: $453|Avg: $300

102%

#271

Core i9-13900E

MSRP: $554|Avg: $554

101%

#272

Core i9-9820X

MSRP: $889|Avg: $280

101%

#273

Core i9-9900X

MSRP: $989|Avg: $300

100%

#274

Ryzen 7 1800X

MSRP: $499|Avg: $120

45%

#274

Core i7-9700K

MSRP: $385|Avg: $200

100%

#275

Core i3-10320

MSRP: $154|Avg: $140

99%

#276

Core i5-9600KF

MSRP: $262|Avg: $150

99%

#277

Ryzen 3 PRO 5355GE

MSRP: $180|Avg: $180

98%

#278

Ryzen Threadripper 1900X

MSRP: $549|Avg: $116

43%

#278

Core i7-14701TE

MSRP: $392|Avg: $390

98%

#279

Ryzen Threadripper 1920X

MSRP: $799|Avg: $265

40%

#279

Core i9-11900KF

MSRP: $513|Avg: $349

98%

#280

Athlon Silver 3050GE

MSRP: $75|Avg: $65

97%

#280

Core i7-7820X

MSRP: $599|Avg: $198

40%

#281

Core i7-9700E

MSRP: $259|Avg: $180

97%

#282

Core i7-11700K

MSRP: $399|Avg: $350

97%

#283

Ryzen Threadripper 1920

MSRP: $799|Avg: $200

38%

#283

Ryzen 7 PRO 3700

MSRP: $329|Avg: $330

96%

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 i7-9700K (2018) utilizes 14 nm technology and DDR4, providing a fundamental performance advantage.

Insight	Core i3-2125	Core i7-9700K
Gaming	❌ Lower gaming performance	✅ Superior gaming performance
Workstation	❌ Weaker in multi-core tasks	✅ Better multi-core power
Price	✅ More affordable ($15)	⚠️ Higher cost ($200)
Longevity	🛑 Legacy (Sandy Bridge (2011−2013) / 32 nm)	✨ Modern (Coffee Lake-R (2018−2019) / 14 nm)

💎 Value Proposition

The Core i3-2125 (2011) relies on 32 nm technology and DDR3, placing it in a different performance category relative to modern standards.

Insight	Core i3-2125	Core i7-9700K
Cost Efficiency	✅ Better overall value (+93%)	❌ Lower cost efficiency
Upfront Cost	✅ More affordable ($15)	⚠️ Higher cost ($200)

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 i3-2125 Benchmark Check

Core i7-9700K Benchmark Check

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Core i3-2125 and Core i7-9700K

Core i3-2125

The Core i3-2125 is manufactured by Intel. It was released in 4 September 2011 (14 years ago). It is based on the Sandy Bridge (2011−2013) architecture. It features 2 cores and 4 threads. Base frequency is 3.3 GHz, with boost up to 3.3 GHz. L3 cache: 3 MB (total). L2 cache: 256 kB (per core). Built on 32 nm process technology. Socket: LGA1155. Thermal design power (TDP): 65 Watt. Memory support: DDR3. Passmark benchmark score: 2,082 points. Launch price was $170.

Core i7-9700K

The Core i7-9700K is manufactured by Intel. It was released in 19 October 2018 (7 years ago). It is based on the Coffee Lake-R (2018−2019) architecture. It features 8 cores and 8 threads. Base frequency is 3.6 GHz, with boost up to 4.9 GHz. L3 cache: 12 MB (total). L2 cache: 256K (per core). Built on 14 nm process technology. Socket: LGA1151. Thermal design power (TDP): 95 Watt. Memory support: DDR4. Passmark benchmark score: 14,397 points. Launch price was $374.

⚡

Processing Power

The Core i3-2125 packs 2 cores / 4 threads, while the Core i7-9700K offers 8 cores / 8 threads — the Core i7-9700K has 6 more cores. Boost clocks reach 3.3 GHz on the Core i3-2125 versus 4.9 GHz on the Core i7-9700K — a 39% clock advantage for the Core i7-9700K (base: 3.3 GHz vs 3.6 GHz). The Core i3-2125 uses the Sandy Bridge (2011−2013) architecture (32 nm), while the Core i7-9700K uses Coffee Lake-R (2018−2019) (14 nm). In PassMark, the Core i3-2125 scores 2,082 against the Core i7-9700K's 14,397 — a 149.5% lead for the Core i7-9700K. L3 cache: 3 MB (total) on the Core i3-2125 vs 12 MB (total) on the Core i7-9700K.

Feature	Core i3-2125	Core i7-9700K
Cores / Threads	2 / 4	8 / 8+300%
Boost Clock	3.3 GHz	4.9 GHz+48%
Base Clock	3.3 GHz	3.6 GHz+9%
L3 Cache	3 MB (total)	12 MB (total)+300%
L2 Cache	256 kB (per core)	256K (per core)
Process	32 nm	14 nm-56%
Architecture	Sandy Bridge (2011−2013)	Coffee Lake-R (2018−2019)
PassMark	2,082	14,397+591%
Geekbench 6 Single	499	—

🧠

Memory & Platform

The Core i3-2125 uses the LGA1155 socket (PCIe 2.0), while the Core i7-9700K uses LGA1151 (PCIe 3.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR3-1333 on the Core i3-2125 versus DDR4-2666 on the Core i7-9700K — the Core i7-9700K supports 28.6% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Core i7-9700K supports up to 128 GB of RAM compared to 32 GB — 120% more capacity for professional workloads. Both feature 2-channel memory with ECC support. Both provide 16 PCIe lanes. Chipset compatibility: H61,H67,P67,Z68,B65,Q65,Q67,B75,Q75,H77,Z75,Z77 (Core i3-2125) and Intel 300 series (Core i7-9700K).

Feature	Core i3-2125	Core i7-9700K
Socket	LGA1155	LGA1151
PCIe Generation	PCIe 2.0	PCIe 3.0+50%
Max RAM Speed	DDR3-1333	DDR4-2666+33%
Max RAM Capacity	32 GB	128 GB+300%
RAM Channels	2	2
ECC Support	❌	❌
PCIe Lanes	16	16

🔧

Advanced Features

Only the Core i7-9700K has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Virtualization support: VT-x, EPT (Core i3-2125) vs VT-x, VT-d (Core i7-9700K). Both include integrated graphics — HD Graphics 3000 (Core i3-2125) and UHD Graphics 630 (Core i7-9700K) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Core i3-2125 targets Budget Desktop, Core i7-9700K targets Desktop. Direct competitor: Core i3-2125 rivals A8-3850.

Feature	Core i3-2125	Core i7-9700K
Integrated GPU	Yes	Yes
IGPU Model	HD Graphics 3000	UHD Graphics 630
Unlocked	No	Yes
AVX-512	No	No
Virtualization	VT-x, EPT	VT-x, VT-d
Target Use	Budget Desktop	Desktop

💰

Value Analysis

The Core i3-2125 launched at $134 MSRP, while the Core i7-9700K debuted at $385. At current prices ($15 vs $200), the Core i3-2125 is $185 cheaper. In terms of value (PassMark points per dollar), the Core i3-2125 delivers 138.8 pts/$ vs 72.0 pts/$ for the Core i7-9700K — making the Core i3-2125 the 63.4% better value option.