Core 2 Quad Q9400 vs Phenom II X4 910e

Core 2 Quad Q9400 vs Phenom II X4 910e Performance Spectrum

Core 2 Quad Q9400

4 / 4

2,160

+0.6%

2,148

0.0%

Ryzen Threadripper PRO 7955WX

Ryzen Threadripper 3990X

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.

Core 2 Quad Q9400 vs Phenom II X4 910e FPS Benchmarks

Predicted gaming performance across popular games. Tested paired with GeForce RTX 5090 to isolate CPU performance.

Search any supported game below to compare 1080p FPS for both components.

Core 2 Quad Q9400 vs Phenom II X4 910e: Pros, Cons & Final Verdict

See where each CPU makes more sense in practice: gaming, heavier work, platform cost, power draw, and upgrade path.

Core 2 Quad Q9400

2008

Why buy it

✅Better for gaming: +4.3% higher average FPS across 50 shared CPU benchmark tests.

Trade-offs

❌Lower PassMark per dollar, at 9.4 vs 13.7 PassMark/$ ($229 MSRP vs $157 MSRP).
❌46.2% higher power demand at 95W vs 65W.

Phenom II X4 910e

2010

Why buy it

✅Costs $72 less on MSRP ($157 MSRP vs $229 MSRP).
✅Delivers 45.0% more PassMark for each dollar spent, at 13.7 vs 9.4 PassMark/$ ($157 MSRP vs $229 MSRP).
✅Draws 65W instead of 95W, a 30W reduction.

Trade-offs

❌Worse for gaming: lower average FPS than Core 2 Quad Q9400 across 50 shared CPU benchmark tests.
❌Lower PassMark (2,148 vs 2,160).

Quick Answers

So, is Core 2 Quad Q9400 better than Phenom II X4 910e?

Yes. Core 2 Quad Q9400 is the better all-around CPU here. It gives you a 4.3% average FPS lead across 50 shared CPU game tests in our data and 0.6% better PassMark, which is enough to make it the stronger overall pick.

Which one is better for gaming?

If gaming is the priority, Core 2 Quad Q9400 is the better pick. According to our tests, it delivers 4.3% more average FPS across 50 shared CPU game tests.

Which one is better for streaming, content creation, and heavy multitasking?

For streaming, content creation, and heavier multitasking, Core 2 Quad Q9400 is the stronger fit. You are getting 0.6% better PassMark, backed by 4 cores and 4 threads.

Which one is the smarter buy today, not just the cheaper CPU?

Core 2 Quad Q9400 is still the much better call for a fresh build. Core 2 Quad Q9400 comes in 45.9% more expensive on MSRP at $229 MSRP versus $157 MSRP, and it still gives you a 4.3% average FPS lead across 50 shared CPU game tests in our data. Phenom II X4 910e only looks stronger on raw value math because it is extremely cheap, but that usually means used-market pricing on an obsolete 2010 platform. Even with 45.0% better value on paper (13.7 vs 9.4 PassMark/$), it really only makes sense as a cheap stopgap or a niche existing-platform option for someone already on AM3.

Which one is more future-proof for 2026 and beyond?

Phenom II X4 910e makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2010 vs 2008). That makes it the safer long-term bet.

Core 2 Quad Q9400 vs Phenom II X4 910e Technical Specifications

Side-by-side specs, architecture details, clocks, memory, power, and platform differences.

Core 2 Quad Q9400

The Core 2 Quad Q9400 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 2.67 GHz. L3 cache: 0 kB. L2 cache: 6 MB (total). Built on 45 nm process technology. Socket: LGA775. Thermal design power (TDP): 95 Watt. Memory support: DDR1, DDR2, DDR3. Passmark benchmark score: 2,160 points. Launch price was $249.

Phenom II X4 910e

The Phenom II X4 910e is manufactured by AMD. It was released in 25 January 2010 (15 years ago). It is based on the Deneb (2009−2011) architecture. It features 4 cores and 4 threads. Base frequency is 2.6 GHz, with boost up to 2.6 GHz. L3 cache: 6 MB (total). L2 cache: 512 kB (per core). Built on 45 nm process technology. Socket: AM3. Thermal design power (TDP): 65 Watt. Memory support: DDR3. Passmark benchmark score: 2,148 points. Launch price was $157.

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Processing Power

Both the Core 2 Quad Q9400 and Phenom II X4 910e share an identical 4-core/4-thread configuration. Boost clocks reach 2.67 GHz on the Core 2 Quad Q9400 versus 2.6 GHz on the Phenom II X4 910e — a 2.7% clock advantage for the Core 2 Quad Q9400 (base: 2.66 GHz vs 2.6 GHz). The Core 2 Quad Q9400 uses the Yorkfield (2007−2009) architecture (45 nm), while the Phenom II X4 910e uses Deneb (2009−2011) (45 nm). In PassMark, the Core 2 Quad Q9400 scores 2,160 against the Phenom II X4 910e's 2,148 — a 0.6% lead for the Core 2 Quad Q9400. L3 cache: 0 kB on the Core 2 Quad Q9400 vs 6 MB (total) on the Phenom II X4 910e.

Feature	Core 2 Quad Q9400	Phenom II X4 910e
Cores / Threads	4 / 4	4 / 4
Boost Clock	2.67 GHz+3%	2.6 GHz
Base Clock	2.66 GHz+2%	2.6 GHz
L3 Cache	0 kB	6 MB (total)
L2 Cache	6 MB (total)+1100%	512 kB (per core)
Process	45 nm	45 nm
Architecture	Yorkfield (2007−2009)	Deneb (2009−2011)
PassMark	2,160	2,148

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Memory & Platform

The Core 2 Quad Q9400 uses the LGA775 socket (PCIe 1.1), while the Phenom II X4 910e uses AM3 (PCIe 2.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR3-1066 on the Core 2 Quad Q9400 versus DDR3-1333 on the Phenom II X4 910e — the Phenom II X4 910e supports 25% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Phenom II X4 910e supports up to 16 GB of RAM compared to 8 GB — 100% more capacity for professional workloads. Both feature 2-channel memory with ECC support. Both provide 0 PCIe lanes.

Feature	Core 2 Quad Q9400	Phenom II X4 910e
Socket	LGA775	AM3
PCIe Generation	PCIe 1.1	PCIe 2.0+82%
Max RAM Speed	DDR3-1066	DDR3-1333+25%
Max RAM Capacity	8 GB	16 GB+100%
RAM Channels	2	2
ECC Support	No	Yes
PCIe Lanes	0	0

🔧

Advanced Features

Neither processor supports overclocking. Virtualization support: VT-x (Core 2 Quad Q9400) vs AMD-V (Phenom II X4 910e). Primary use case: Core 2 Quad Q9400 targets Desktop, Phenom II X4 910e targets Desktop.

Feature	Core 2 Quad Q9400	Phenom II X4 910e
Integrated GPU	No	No
Unlocked	No	No
AVX-512	No	No
Virtualization	VT-x	AMD-V
Target Use	Desktop	Desktop

💰

Value Analysis

At launch, the Core 2 Quad Q9400 was priced at $229, while the Phenom II X4 910e came in at $157. On launch pricing ($229 vs $157), Phenom II X4 910e was $72 cheaper. In terms of value on MSRP (PassMark points per dollar), the Core 2 Quad Q9400 delivers 9.4 pts/$ vs 13.7 pts/$ for the Phenom II X4 910e — making the Phenom II X4 910e the 36.8% better value option.

Feature	Core 2 Quad Q9400	Phenom II X4 910e
MSRP	$229	$157-31%
Performance per Dollar	9.4	13.7+46%
Release Date	2008	2010

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