Core 2 Quad Q8400 vs Celeron B810

Core 2 Quad Q8400

4 Cores4 Thrd95 WWMax: 0.67 GHz2009

Celeron B810

2 Cores2 Thrd0 WWMax: 1.6 GHz2011

Performance Spectrum - CPU

Core 2 Quad Q8400

4 / 4

2,076

0.0%

2,091

+0.7%

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 Quad Q8400 is positioned at rank 975 and the Celeron B810 is on rank 801, so the Celeron B810 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 Quad Q8400

Ryzen 9 7950X

MSRP: $194|Avg: $20

27488%

Core i9-10900T

MSRP: $120|Avg: $5

25974%

Ryzen 3 PRO 4355GE

MSRP: $423|Avg: $5

18859%

Ryzen Threadripper 3960X

MSRP: $1399|Avg: $85

5681%

Ryzen 9 9950X

MSRP: $649|Avg: $129

4500%

Ryzen 5 8400F

MSRP: $303|Avg: $55

3937%

Ryzen 7 PRO 2700

MSRP: $299|Avg: $60

2255%

Ryzen 5 2600X

MSRP: $229|Avg: $55

2225%

Ryzen 3 PRO 5350G

MSRP: $150|Avg: $60

2026%

#10

Core Ultra 5 245KF

MSRP: $294|Avg: $189

2026%

#11

Ryzen 5 5500

MSRP: $159|Avg: $85

2003%

#12

Ryzen 5 3600

MSRP: $199|Avg: $80

1949%

#13

Core i3-9100E

MSRP: $202|Avg: $30

1922%

#14

Core Ultra 5 245K

MSRP: $319|Avg: $200

1914%

#15

Core i3-8300T

MSRP: $138|Avg: $25

1897%

#975

Core 2 Quad Q8400

MSRP: $183|Avg: $128

100%

#976

Pentium Dual-Core E2180

MSRP: $84|Avg: $5

99%

#977

Pentium E2180

MSRP: $84|Avg: $15

99%

#978

Pentium Dual-Core E2140

MSRP: $74|Avg: $5

97%

#979

Core i7-960

MSRP: $309|Avg: $110

97%

#980

E1-1500

MSRP: $60|Avg: $10

97%

#981

Core i5-2405S

MSRP: $309|Avg: $120

97%

#982

Celeron 420

MSRP: $39|Avg: $15

96%

#983

Athlon II X4 615e

MSRP: $186|Avg: $30

96%

#984

Athlon X2 BE-2350

MSRP: $90|Avg: $10

96%

#985

Core 2 Quad Q8300

MSRP: $179|Avg: $10

94%

#986

Core i7-860

MSRP: $284|Avg: $30

93%

#987

Core i7-870

MSRP: $300|Avg: $80

93%

#988

Athlon 64 X2 5000+

MSRP: $136|Avg: $42

92%

#989

Core i3-6102E

MSRP: $225|Avg: $35

92%

#990

Pentium Dual-Core E2160

MSRP: $84|Avg: $5

92%

Based on actual market prices and performance synthetic scores.

Performance Per Dollar Celeron B810

#789

Atom x5-Z8300

MSRP: $20|Avg: N/A

1207%

#790

Atom Z3735G

MSRP: $17|Avg: N/A

1189%

#791

Core i5-480M

MSRP: $81|Avg: $77

1092%

#792

Core i5-460M

MSRP: $80|Avg: $129

1087%

#793

Core i5-2540M

MSRP: $266|Avg: $10

1077%

#795

Core i5-450M

MSRP: $32|Avg: $31

1040%

#796

Core i3-380M

MSRP: $49|Avg: $25

997%

#797

Core i5-430M

MSRP: N/A|Avg: $33

995%

#798

Core 2 Duo T6600

MSRP: N/A|Avg: $4

969%

#801

Celeron B810

MSRP: $86|Avg: $86

100%

#803

Core i7-1365UE

MSRP: $429|Avg: $429

100%

#805

3020e

MSRP: $100|Avg: $25

99%

#809

Athlon II M320

MSRP: $75|Avg: $15

98%

#810

Celeron B800

MSRP: $80|Avg: $5

98%

#811

Celeron B710

MSRP: $86|Avg: $10

98%

#812

Athlon II Neo K345

MSRP: $50|Avg: $10

98%

Based on actual market prices and performance synthetic scores.

Performance Comparison

About PassMark

🏆 Chipversus Verdict

🚀 Performance Leadership

Performance Leadership: The Celeron B810 delivers superior performance across the board. It outperforms the Core 2 Quad Q8400 in both compute-intensive tasks (0.7% faster) and gaming workloads.

Insight	Core 2 Quad Q8400	Celeron B810
Gaming	❌ Lower gaming performance	✅ Superior gaming performance
Workstation	❌ Weaker in multi-core tasks	✅ Better multi-core power
Price	⚠️ Higher cost ($128)	✅ More affordable ($86)
Longevity	🛑 Legacy (Yorkfield (2007−2009) / 45 nm)	🛑 Legacy (Sandy Bridge (2011−2013) / 32 nm)

💎 Value Proposition

Efficiency: Even within a comparison of older hardware, the Celeron B810 stands out as the superior choice. It is effectively 33% cheaper ($86 vs $128) while identifying as the stronger performer.

Insight	Core 2 Quad Q8400	Celeron B810
Cost Efficiency	❌ Lower cost efficiency	✅ Better overall value (+50%)
Upfront Cost	⚠️ Higher cost ($128)	✅ More affordable ($86)

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 Quad Q8400 Benchmark Check

Celeron B810 Benchmark Check

Technical Specifications

Side-by-side comparison of Core 2 Quad Q8400 and Celeron B810

Core 2 Quad Q8400

The Core 2 Quad Q8400 is manufactured by Intel. It was released in 2008-01-01. It is based on the Yorkfield (2007−2009) architecture. It features 4 cores and 4 threads. Base frequency is 2.66 GHz, with boost up to 0.67 GHz. L3 cache: 0 kB. L2 cache: 4 MB (total). Built on 45 nm process technology. Socket: LGA775. Thermal design power (TDP): 95 Watt. Memory support: DDR1, DDR2, DDR3. Passmark benchmark score: 2,076 points. Launch price was $249.

Celeron B810

The Celeron B810 is manufactured by Intel. It was released in 1 March 2011 (14 years ago). It is based on the Sandy Bridge (2011−2013) architecture. It features 2 cores and 2 threads. Base frequency is 1.6 GHz, with boost up to 1.6 GHz. L3 cache: 2 MB (total). L2 cache: 256K (per core). Built on 32 nm process technology. Socket: PGA988. Thermal design power (TDP): 35 Watt. Memory support: DDR3. Passmark benchmark score: 2,091 points. Launch price was $86.

⚡

Processing Power

The Core 2 Quad Q8400 packs 4 cores / 4 threads, while the Celeron B810 offers 2 cores / 2 threads — the Core 2 Quad Q8400 has 2 more cores. Boost clocks reach 0.67 GHz on the Core 2 Quad Q8400 versus 1.6 GHz on the Celeron B810 — a 81.9% clock advantage for the Celeron B810 (base: 2.66 GHz vs 1.6 GHz). The Core 2 Quad Q8400 uses the Yorkfield (2007−2009) architecture (45 nm), while the Celeron B810 uses Sandy Bridge (2011−2013) (32 nm). In PassMark, the Core 2 Quad Q8400 scores 2,076 against the Celeron B810's 2,091 — a 0.7% lead for the Celeron B810. L3 cache: 0 kB on the Core 2 Quad Q8400 vs 2 MB (total) on the Celeron B810.

Feature	Core 2 Quad Q8400	Celeron B810
Cores / Threads	4 / 4+100%	2 / 2
Boost Clock	0.67 GHz	1.6 GHz+139%
Base Clock	2.66 GHz+66%	1.6 GHz
L3 Cache	0 kB	2 MB (total)
L2 Cache	4 MB (total)+1500%	256K (per core)
Process	45 nm	32 nm-29%
Architecture	Yorkfield (2007−2009)	Sandy Bridge (2011−2013)
PassMark	2,076	2,091
Cinebench R23 Multi	852	—
Geekbench 6 Single	369	—
Geekbench 6 Multi	1,155	—

🧠

Memory & Platform

The Core 2 Quad Q8400 uses the LGA775 socket (PCIe 1.1), while the Celeron B810 uses PGA988 (PCIe 2.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR3 1333 MHz on the Core 2 Quad Q8400 versus DDR3-1333 on the Celeron B810 — the Core 2 Quad Q8400 supports 200% faster memory, which can translate to measurable gains in memory-sensitive workloads. Both support up to 16 GB of RAM. Both feature 2-channel memory with ECC support. PCIe lanes: 0 (Core 2 Quad Q8400) vs 16 (Celeron B810) — the Celeron B810 offers 16 more lanes for additional GPUs or NVMe drives. Chipset compatibility: Intel P45,Intel G41,Intel Q45,Intel X48,Intel G31 (Core 2 Quad Q8400) and HM65,HM67,QM67,QM77 (Celeron B810).

Feature	Core 2 Quad Q8400	Celeron B810
Socket	LGA775	PGA988
PCIe Generation	PCIe 1.1	PCIe 2.0+82%
Max RAM Speed	DDR3 1333 MHz	DDR3-1333
Max RAM Capacity	16 GB	16 GB
RAM Channels	2	2
ECC Support	❌	❌
PCIe Lanes	0	16

🔧

Advanced Features

Neither processor supports overclocking. Virtualization support: true (Core 2 Quad Q8400) vs VT-x (Celeron B810). The Celeron B810 includes integrated graphics (HD Graphics (Sandy Bridge)), while the Core 2 Quad Q8400 requires a dedicated GPU. Primary use case: Core 2 Quad Q8400 targets Desktop, Celeron B810 targets Budget. Direct competitor: Celeron B810 rivals Pentium 967.

Feature	Core 2 Quad Q8400	Celeron B810
Integrated GPU	No	Yes
IGPU Model	—	HD Graphics (Sandy Bridge)
Unlocked	No	No
AVX-512	No	No
Virtualization	true	VT-x
Target Use	Desktop	Budget

💰

Value Analysis

The Core 2 Quad Q8400 launched at $183 MSRP, while the Celeron B810 debuted at $86. At current prices ($128 vs $86), the Celeron B810 is $42 cheaper. In terms of value (PassMark points per dollar), the Core 2 Quad Q8400 delivers 16.2 pts/$ vs 24.3 pts/$ for the Celeron B810 — making the Celeron B810 the 39.9% better value option.