Core 2 Duo E8135 vs Core 2 Duo E6750

CPU

GPU

Core 2 Duo E8135

2 Cores2 Thrd44 WWMax: 0.67 GHz2009

Core 2 Duo E6750

2 Cores2 Thrd65 WWMax: 2.67 GHz2007

Performance Spectrum - CPU

Core 2 Duo E8135

2 / 2

1,020

0.0%

1,029

+0.9%

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 2 Duo E8135 is positioned at rank 1203 and the Core 2 Duo E6750 is on rank 1069, so the Core 2 Duo E6750 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 2 Duo E8135

#1191

Atom x5-Z8300

MSRP: $20|Avg: N/A

5753%

#1192

Atom Z3735G

MSRP: $17|Avg: N/A

5669%

#1193

Core i5-480M

MSRP: $81|Avg: $77

5204%

#1194

Core i5-460M

MSRP: $80|Avg: $129

5180%

#1195

Core i5-2540M

MSRP: $266|Avg: $10

5133%

#1197

Core i5-450M

MSRP: $32|Avg: $31

4957%

#1198

Core i3-380M

MSRP: $49|Avg: $25

4753%

#1199

Core i5-430M

MSRP: N/A|Avg: $33

4745%

#1200

Core 2 Duo T6600

MSRP: N/A|Avg: $4

4618%

#1203

Core 2 Duo E8135

MSRP: $200|Avg: $15

100%

#1204

Core 2 Duo U7700

MSRP: $262|Avg: $10

100%

#1205

Core Duo T2400

MSRP: $294|Avg: N/A

99%

#1206

Core 2 Duo U7600

MSRP: $250|Avg: $5

99%

#1207

Pentium M 735

MSRP: $294|Avg: N/A

97%

#1208

Core i7-620LM

MSRP: $300|Avg: N/A

96%

#1209

Core i7-740QM

MSRP: $378|Avg: N/A

95%

#1211

Core 2 Solo SU3300

MSRP: $262|Avg: $50

93%

#1212

Celeron 540

MSRP: $86|Avg: $5

93%

#1213

Celeron U3600

MSRP: $134|Avg: $134

91%

#1216

Core 2 Quad Q9000

MSRP: $348|Avg: $15

90%

#1217

Core i5-2537M

MSRP: $250|Avg: N/A

90%

#1218

Core i7-720QM

MSRP: $364|Avg: N/A

89%

Based on actual market prices and performance synthetic scores.

Performance Per Dollar Core 2 Duo E6750

Ryzen 9 7950X

MSRP: $194|Avg: $20

55465%

Core i9-10900T

MSRP: $120|Avg: $5

52409%

Ryzen 3 PRO 4355GE

MSRP: $423|Avg: $5

38053%

Ryzen Threadripper 3960X

MSRP: $1399|Avg: $85

11464%

Ryzen 9 9950X

MSRP: $649|Avg: $129

9081%

Ryzen 5 8400F

MSRP: $303|Avg: $55

7944%

Ryzen 7 PRO 2700

MSRP: $299|Avg: $60

4550%

Ryzen 5 2600X

MSRP: $229|Avg: $55

4490%

Ryzen 3 PRO 5350G

MSRP: $150|Avg: $60

4089%

#10

Core Ultra 5 245KF

MSRP: $294|Avg: $189

4088%

#11

Ryzen 5 5500

MSRP: $159|Avg: $85

4043%

#12

Ryzen 5 3600

MSRP: $199|Avg: $80

3933%

#13

Core i3-9100E

MSRP: $202|Avg: $30

3878%

#14

Core Ultra 5 245K

MSRP: $319|Avg: $200

3863%

#15

Core i3-8300T

MSRP: $138|Avg: $25

3828%

#1069

Core 2 Duo E6750

MSRP: $183|Avg: $15

100%

#1070

Athlon II X4 635

MSRP: $400|Avg: $250

100%

#1071

Core i7-940

MSRP: $562|Avg: $90

96%

#1072

Celeron 2.40

MSRP: $69|Avg: $13

89%

#1073

Sempron 2800+

MSRP: $65|Avg: $29

88%

#1074

Athlon 64 3100+

MSRP: $100|Avg: $15

85%

#1075

Sempron 3600+

MSRP: $105|Avg: $20

82%

#1076

Celeron 2.80

MSRP: $100|Avg: $15

76%

#1077

Athlon 64 X2 6000+

MSRP: $450|Avg: $20

72%

#1078

Athlon 64 3600+

MSRP: $149|Avg: $15

71%

#1079

Core 2 Quad Q6700

MSRP: $530|Avg: $50

70%

#1080

Athlon 64 2600+

MSRP: $100|Avg: $5

70%

#1081

Celeron 2.20

MSRP: $79|Avg: $15

69%

#1082

Athlon 64 X2 5200+

MSRP: $420|Avg: $15

64%

#1083

Athlon 64 X2 4000+

MSRP: $328|Avg: $10

64%

#1084

Core i7-975

MSRP: $999|Avg: $50

63%

Based on actual market prices and performance synthetic scores.

Performance Comparison

About PassMark

🏆 Chipversus Verdict

🚀 Performance Leadership

Performance Leadership: The Core 2 Duo E6750 delivers superior performance across the board. It outperforms the Core 2 Duo E8135 in both compute-intensive tasks (0.9% faster) and gaming workloads.

Insight	Core 2 Duo E8135	Core 2 Duo E6750
Gaming	❌ Lower gaming performance	✅ Superior gaming performance
Workstation	❌ Weaker in multi-core tasks	✅ Better multi-core power
Price	Equivalent pricing	Equivalent pricing
Longevity	🛑 Legacy (Penryn (2008−2011) / 45 nm)	🛑 Legacy (Conroe (2006−2007) / 65 nm)

💎 Value Proposition

Efficiency: Even within a comparison of older hardware, the Core 2 Duo E6750 stands out as the superior choice. It is effectively 0% cheaper ($15 vs $15) while identifying as the stronger performer.

Insight	Core 2 Duo E8135	Core 2 Duo E6750
Cost Efficiency	❌ Lower cost efficiency	✅ Better overall value (+1%)
Upfront Cost	Equivalent pricing	Equivalent pricing

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 2 Duo E8135 Benchmark Check

Core 2 Duo E6750 Benchmark Check

Technical Specifications

Side-by-side comparison of Core 2 Duo E8135 and Core 2 Duo E6750

Core 2 Duo E8135

The Core 2 Duo E8135 is manufactured by Intel. It was released in 2008-01-01. It is based on the Penryn (2008−2011) architecture. It features 2 cores and 2 threads. Base frequency is 2.667 GHz, with boost up to 0.67 GHz. L2 cache: 6 MB (total). Built on 45 nm process technology. Socket: P. Thermal design power (TDP): 44 Watt. Memory support: DDR2, DDR3. Passmark benchmark score: 1,020 points. Launch price was $249.

Core 2 Duo E6750

The Core 2 Duo E6750 is manufactured by Intel. It was released in 2008-01-01. It is based on the Conroe (2006−2007) architecture. It features 2 cores and 2 threads. Base frequency is 2.66 GHz, with boost up to 2.67 GHz. L3 cache: 0 kB. L2 cache: 4 MB. Built on 65 nm process technology. Socket: LGA775. Thermal design power (TDP): 65 Watt. Memory support: DDR1, DDR2, DDR3. Passmark benchmark score: 1,029 points. Launch price was $249.

⚡

Processing Power

Both the Core 2 Duo E8135 and Core 2 Duo E6750 share an identical 2-core/2-thread configuration. Boost clocks reach 0.67 GHz on the Core 2 Duo E8135 versus 2.67 GHz on the Core 2 Duo E6750 — a 119.8% clock advantage for the Core 2 Duo E6750 (base: 2.667 GHz vs 2.66 GHz). The Core 2 Duo E8135 uses the Penryn (2008−2011) architecture (45 nm), while the Core 2 Duo E6750 uses Conroe (2006−2007) (65 nm). In PassMark, the Core 2 Duo E8135 scores 1,020 against the Core 2 Duo E6750's 1,029 — a 0.9% lead for the Core 2 Duo E6750.

Feature	Core 2 Duo E8135	Core 2 Duo E6750
Cores / Threads	2 / 2	2 / 2
Boost Clock	0.67 GHz	2.67 GHz+299%
Base Clock	2.667 GHz	2.66 GHz
L3 Cache	—	0 kB
L2 Cache	6 MB (total)+50%	4 MB
Process	45 nm-31%	65 nm
Architecture	Penryn (2008−2011)	Conroe (2006−2007)
PassMark	1,020	1,029

🧠

Memory & Platform

The Core 2 Duo E8135 uses the P socket (PCIe 1.1), while the Core 2 Duo E6750 uses LGA775 (PCIe 1.1) — making them incompatible on the same motherboard.

Feature	Core 2 Duo E8135	Core 2 Duo E6750
Socket	P	LGA775
PCIe Generation	PCIe 1.1	PCIe 1.1
Max RAM Speed	—	1333
Max RAM Capacity	—	16
RAM Channels	—	2
ECC Support	—	❌
PCIe Lanes	—	16

🔧

Advanced Features

Virtualization: not specified (Core 2 Duo E8135) / true (Core 2 Duo E6750). Direct competitor: Core 2 Duo E6750 rivals Phenom X3 8450.

Feature	Core 2 Duo E8135	Core 2 Duo E6750
Integrated GPU	—	No
IGPU Model	—	None
Unlocked	—	No
AVX-512	—	No
Virtualization	—	true

💰

Value Analysis

The Core 2 Duo E8135 launched at $200 MSRP, while the Core 2 Duo E6750 debuted at $183. At current prices ($15 vs $15), the Core 2 Duo E6750 is $0 cheaper. In terms of value (PassMark points per dollar), the Core 2 Duo E8135 delivers 68.0 pts/$ vs 68.6 pts/$ for the Core 2 Duo E6750 — making the Core 2 Duo E6750 the 0.9% better value option.