Core i7-620UM vs Core 2 Duo E4400

CPU

GPU

Core i7-620UM

2 Cores4 Thrd18 WWMax: 2.13 GHz2010

Core 2 Duo E4400

2 Cores2 Thrd65 WWMax: 2 GHz2007

Performance Spectrum - CPU

Core i7-620UM

2 / 4

1,091

0.0%

1,095

+0.4%

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 Core i7-620UM is positioned at rank 1228 and the Core 2 Duo E4400 is on rank 1001, so the Core 2 Duo E4400 offers better cost-efficiency for playing games.

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 i7-620UM

#1216

Atom x5-Z8300

MSRP: $20|Avg: N/A

7485%

#1217

Atom Z3735G

MSRP: $17|Avg: N/A

7375%

#1218

Core i5-480M

MSRP: $81|Avg: $77

6770%

#1219

Core i5-460M

MSRP: $80|Avg: $129

6740%

#1220

Core i5-2540M

MSRP: $266|Avg: $10

6678%

#1222

Core i5-450M

MSRP: $32|Avg: $31

6449%

#1223

Core i3-380M

MSRP: $49|Avg: $25

6184%

#1224

Core i5-430M

MSRP: N/A|Avg: $33

6173%

#1225

Core 2 Duo T6600

MSRP: N/A|Avg: $4

6008%

#1228

Core i7-620UM

MSRP: $278|Avg: N/A

100%

#1230

Celeron 570

MSRP: $134|Avg: $15

96%

#1231

Core i7-820QM

MSRP: $546|Avg: N/A

85%

#1233

Core Duo T2700

MSRP: $663|Avg: N/A

72%

#1235

Pentium SU4100

MSRP: $289|Avg: $15

60%

#1236

Core Solo T1400

MSRP: $200|Avg: $5

55%

#1237

Core i7-940XM

MSRP: $1096|Avg: N/A

53%

#1238

Core Solo T1350

MSRP: $200|Avg: $70

52%

#1240

Core Solo T1300

MSRP: $209|Avg: $10

47%

#1241

Core Solo T1200

MSRP: $209|Avg: $10

43%

Based on actual market prices and performance synthetic scores.

Performance Per Dollar Core 2 Duo E4400

Ryzen 9 7950X

MSRP: $194|Avg: $20

32169%

Core i9-10900T

MSRP: $120|Avg: $5

30396%

Ryzen 3 PRO 4355GE

MSRP: $423|Avg: $5

22070%

Ryzen Threadripper 3960X

MSRP: $1399|Avg: $85

6649%

Ryzen 9 9950X

MSRP: $649|Avg: $129

5267%

Ryzen 5 8400F

MSRP: $303|Avg: $55

4607%

Ryzen 7 PRO 2700

MSRP: $299|Avg: $60

2639%

Ryzen 5 2600X

MSRP: $229|Avg: $55

2604%

Ryzen 3 PRO 5350G

MSRP: $150|Avg: $60

2371%

#10

Core Ultra 5 245KF

MSRP: $294|Avg: $189

2371%

#11

Ryzen 5 5500

MSRP: $159|Avg: $85

2345%

#12

Ryzen 5 3600

MSRP: $199|Avg: $80

2281%

#13

Core i3-9100E

MSRP: $202|Avg: $30

2249%

#14

Core Ultra 5 245K

MSRP: $319|Avg: $200

2240%

#15

Core i3-8300T

MSRP: $138|Avg: $25

2220%

#1001

Core 2 Duo E4400

MSRP: $113|Avg: $20

100%

#1002

Pentium D 915

MSRP: $74|Avg: $10

98%

#1003

Core 2 Quad Q9400

MSRP: $229|Avg: $25

97%

#1004

Core i5-655K

MSRP: $216|Avg: $55

96%

#1005

Celeron 450

MSRP: $53|Avg: $5

96%

#1006

Core 2 Duo E4600

MSRP: $133|Avg: $9.6

96%

#1008

Core i7-870S

MSRP: $300|Avg: $80

95%

#1009

Core 2 Duo E6540

MSRP: $163|Avg: $15

95%

#1010

Celeron 430

MSRP: $49|Avg: $10

94%

#1011

Athlon X2 BE-2300

MSRP: $100|Avg: $80

93%

#1012

Core i7-875K

MSRP: $353|Avg: $175

93%

#1013

Core i5-670

MSRP: $284|Avg: $100

93%

#1014

Core i5-680

MSRP: $294|Avg: $10

92%

#1015

Core 2 Duo E4300

MSRP: $113|Avg: $5

92%

Based on actual market prices and performance synthetic scores.

Performance Comparison

About PassMark

🏆 Chipversus Verdict

🚀 Performance Leadership

Performance Trade-off: The Core i7-620UM leads in gaming performance. However, the Core 2 Duo E4400 is the stronger candidate for professional workloads, offering 0.4% greater multi-core processing power.

Insight	Core i7-620UM	Core 2 Duo E4400
Gaming	✅ Superior gaming performance	❌ Lower gaming performance
Workstation	❌ Weaker in multi-core tasks	✅ Better multi-core power
Price	⚠️ Higher cost ($278)	✅ More affordable ($20)
Longevity	🛑 Legacy (Arrandale (2010−2011) / 32 nm)	🛑 Legacy (Allendale (2006−2009) / 65 nm)

💎 Value Proposition

Efficiency: Even within a comparison of older hardware, the Core 2 Duo E4400 stands out as the superior choice. It is effectively 93% cheaper ($20 vs $278) while identifying as the stronger performer.

Insight	Core i7-620UM	Core 2 Duo E4400
Cost Efficiency	❌ Lower cost efficiency	✅ Better overall value (+1295%)
Upfront Cost	⚠️ Higher cost ($278)	✅ More affordable ($20)

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 i7-620UM Benchmark Check

Core 2 Duo E4400 Benchmark Check

Technical Specifications

Side-by-side comparison of Core i7-620UM and Core 2 Duo E4400

Core i7-620UM

The Core i7-620UM is manufactured by Intel. It was released in 7 January 2010 (15 years ago). It is based on the Arrandale (2010−2011) architecture. It features 2 cores and 4 threads. Base frequency is 1.06 GHz, with boost up to 2.13 GHz. L3 cache: 4 MB (total). L2 cache: 256 kB (per core). Built on 32 nm process technology. Socket: BGA1288. Thermal design power (TDP): 18 Watt. Memory support: DDR3-800. Passmark benchmark score: 1,091 points. Launch price was $278.

Core 2 Duo E4400

The Core 2 Duo E4400 is manufactured by Intel. It was released in 2008-01-01. It is based on the Allendale (2006−2009) architecture. It features 2 cores and 2 threads. Base frequency is 2 GHz, with boost up to 2 GHz. L3 cache: 0 kB. L2 cache: 2 MB. Built on 65 nm process technology. Socket: LGA775. Thermal design power (TDP): 65 Watt. Memory support: DDR1, DDR2, DDR3. Passmark benchmark score: 1,095 points. Launch price was $249.

⚡

Processing Power

The Core i7-620UM packs 2 cores / 4 threads, matching the Core 2 Duo E4400's 2 cores. Boost clocks reach 2.13 GHz on the Core i7-620UM versus 2 GHz on the Core 2 Duo E4400 — a 6.3% clock advantage for the Core i7-620UM (base: 1.06 GHz vs 2 GHz). The Core i7-620UM uses the Arrandale (2010−2011) architecture (32 nm), while the Core 2 Duo E4400 uses Allendale (2006−2009) (65 nm). In PassMark, the Core i7-620UM scores 1,091 against the Core 2 Duo E4400's 1,095 — a 0.4% lead for the Core 2 Duo E4400. Geekbench 6 single-core — the metric most relevant to gaming — records 350 vs 208, a 50.9% lead for the Core i7-620UM that directly translates to higher frame rates. L3 cache: 4 MB (total) on the Core i7-620UM vs 0 kB on the Core 2 Duo E4400.

Feature	Core i7-620UM	Core 2 Duo E4400
Cores / Threads	2 / 4	2 / 2
Boost Clock	2.13 GHz+6%	2 GHz
Base Clock	1.06 GHz	2 GHz+89%
L3 Cache	4 MB (total)	0 kB
L2 Cache	256 kB (per core)	2 MB+700%
Process	32 nm-51%	65 nm
Architecture	Arrandale (2010−2011)	Allendale (2006−2009)
PassMark	1,091	1,095
Geekbench 6 Single	350+68%	208
Geekbench 6 Multi	700	—

🧠

Memory & Platform

The Core i7-620UM uses the BGA1288 socket (PCIe 2.0), while the Core 2 Duo E4400 uses LGA775 (PCIe 1.1) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR3-1066 on the Core i7-620UM versus DDR2-1066 on the Core 2 Duo E4400 — the Core i7-620UM supports 40% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Core 2 Duo E4400 supports up to 16 GB of RAM compared to 8 GB — 66.7% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 16 (Core i7-620UM) vs 0 (Core 2 Duo E4400) — the Core i7-620UM offers 16 more lanes for additional GPUs or NVMe drives. Chipset compatibility: HM55,QM57 (Core i7-620UM) and RS600,Q965 (Core 2 Duo E4400).

Feature	Core i7-620UM	Core 2 Duo E4400
Socket	BGA1288	LGA775
PCIe Generation	PCIe 2.0+82%	PCIe 1.1
Max RAM Speed	DDR3-1066+50%	DDR2-1066
Max RAM Capacity	8 GB	16 GB+100%
RAM Channels	2	2
ECC Support	❌	❌
PCIe Lanes	16	0

🔧

Advanced Features

Neither processor supports overclocking. Virtualization support: VT-x (Core i7-620UM) vs None (Core 2 Duo E4400). The Core i7-620UM includes integrated graphics (Intel HD Graphics (Ironlake)), while the Core 2 Duo E4400 requires a dedicated GPU. Primary use case: Core i7-620UM targets Ultra-Portable Laptop, Core 2 Duo E4400 targets Budget. Direct competitor: Core i7-620UM rivals Core 2 Duo SU9600; Core 2 Duo E4400 rivals Athlon II X2 240.