A9-9420e vs Core 2 Extreme X7900

A9-9420e vs Core 2 Extreme X7900 Performance Spectrum

A9-9420e

2 / 2

1,101

0.0%

Ryzen Threadripper PRO 3955WX

Ryzen Threadripper PRO 7955WX

Ryzen Threadripper 3990X

Core 2 Extreme X7900

2 / 2

1,115

+1.3%

Pentium D 830

Pentium T2370

Pentium T3400

Pentium Dual-Core E2200

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.

A9-9420e vs Core 2 Extreme X7900 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.

A9-9420e vs Core 2 Extreme X7900: Pros, Cons & Final Verdict

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

A9-9420e

2018

Why buy it

✅Draws 1W instead of 4W, a 3W reduction.
✅100+% more PCIe lanes (4 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with Radeon R5 Graphics, while Core 2 Extreme X7900 needs a discrete GPU.

Trade-offs

❌Lower PassMark (1,101 vs 1,115).

Core 2 Extreme X7900

2007

Why buy it

Trade-offs

❌300% higher power demand at 4W vs 1W.
❌No integrated graphics, while A9-9420e can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Core 2 Extreme X7900 better than A9-9420e?

Yes. Core 2 Extreme X7900 is the better all-around CPU here. It gives you a 0.1% average FPS lead across 50 shared CPU game tests in our data and 1.3% 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 Extreme X7900 is the better pick. According to our tests, it delivers 0.1% 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 Extreme X7900 is the stronger fit. You are getting 1.3% better PassMark, backed by 2 cores and 2 threads.

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

Core 2 Extreme X7900 still makes the most sense overall. Core 2 Extreme X7900 comes in at an unclear MSRP at unclear MSRP versus unclear MSRP, and it still gives you a 0.1% average FPS lead across 50 shared CPU game tests in our data.

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

A9-9420e makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2018 vs 2007). That makes it the safer long-term bet.

A9-9420e vs Core 2 Extreme X7900 Technical Specifications

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

A9-9420e

The A9-9420e is manufactured by AMD. It was released in 1 June 2018 (7 years ago). It is based on the Stoney Ridge (2016−2019) architecture. It features 2 cores and 2 threads. Max frequency: 2.5 GHz. L2 cache: 1 MB. Built on 28 nm process technology. Socket: BGA. Thermal design power (TDP): 1 MB. Memory support: DDR4. Passmark benchmark score: 1,101 points. Launch price was $69.

Core 2 Extreme X7900

The Core 2 Extreme X7900 is manufactured by Intel. It was released in 1 September 2007 (18 years ago). It is based on the Merom (2006−2008) architecture. It features 2 cores and 2 threads. Base frequency is 2.8 GHz, with boost up to 2.8 GHz. L3 cache: 0 kB. L2 cache: 4 MB. Built on 65 nm process technology. Socket: PGA478. Thermal design power (TDP): 44 Watt. Memory support: DDR1. Passmark benchmark score: 1,115 points. Launch price was $851.

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Processing Power

Both the A9-9420e and Core 2 Extreme X7900 share an identical 2-core/2-thread configuration. Boost clocks reach 2.5 GHz on the A9-9420e versus 2.8 GHz on the Core 2 Extreme X7900 — a 11.3% clock advantage for the Core 2 Extreme X7900. The A9-9420e uses the Stoney Ridge (2016−2019) architecture (28 nm), while the Core 2 Extreme X7900 uses Merom (2006−2008) (65 nm). In PassMark, the A9-9420e scores 1,101 against the Core 2 Extreme X7900's 1,115 — a 1.3% lead for the Core 2 Extreme X7900.

Feature	A9-9420e	Core 2 Extreme X7900
Cores / Threads	2 / 2	2 / 2
Boost Clock	2.5 GHz	2.8 GHz+12%
Base Clock	—	2.8 GHz
L3 Cache	—	0 kB
L2 Cache	1 MB	4 MB+300%
Process	28 nm-57%	65 nm
Architecture	Stoney Ridge (2016−2019)	Merom (2006−2008)
PassMark	1,101	1,115+1%

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Memory & Platform

The A9-9420e uses the BGA socket (PCIe 3.0), while the Core 2 Extreme X7900 uses PGA478 (PCIe 1.1) — making them incompatible on the same motherboard. Maximum memory speed reaches 2133 on the A9-9420e versus DDR2-667 on the Core 2 Extreme X7900 — the A9-9420e supports 219.8% faster memory, which can translate to measurable gains in memory-sensitive workloads. The A9-9420e supports up to 16 GB of RAM compared to 4 GB — 300% more capacity for professional workloads. Memory channels: 1 (A9-9420e) vs 2 (Core 2 Extreme X7900). PCIe lanes: 4 (A9-9420e) vs 0 (Core 2 Extreme X7900) — the A9-9420e offers 4 more lanes for additional GPUs or NVMe drives.

Feature	A9-9420e	Core 2 Extreme X7900
Socket	BGA	PGA478
PCIe Generation	PCIe 3.0+173%	PCIe 1.1
Max RAM Speed	2133+220%	DDR2-667
Max RAM Capacity	16 GB+300%	4 GB
RAM Channels	1	2+100%
ECC Support	No	No
PCIe Lanes	4	0

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Advanced Features

Only the Core 2 Extreme X7900 has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Virtualization support: true (A9-9420e) vs VT-x (Core 2 Extreme X7900). The A9-9420e includes integrated graphics (Radeon R5 Graphics), while the Core 2 Extreme X7900 requires a dedicated GPU. Primary use case: Core 2 Extreme X7900 targets Mobile. Direct competitor: A9-9420e rivals Pentium N4200.