Celeron G3920 vs Phenom II X4 840T

Celeron G3920 vs Phenom II X4 840T Performance Spectrum

Celeron G3920

2 / 2

2,358

0.0%

2,367

+0.4%

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.

Celeron G3920 vs Phenom II X4 840T 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.

Celeron G3920 vs Phenom II X4 840T: Pros, Cons & Final Verdict

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

Celeron G3920

2015

Why buy it

✅Better for gaming: +3.8% higher average FPS across 50 shared CPU benchmark tests.
✅Draws 51W instead of 95W, a 44W reduction.
✅100+% more PCIe lanes (16 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with HD Graphics 510, while Phenom II X4 840T needs a discrete GPU.

Trade-offs

❌Lower PassMark (2,358 vs 2,367).
❌Smaller total L3 cache (4 MB vs 6 MB).
❌Launch MSRP is still $40 MSRP, while Phenom II X4 840T mostly shows up through inconsistent older-market listings.

Phenom II X4 840T

2010

Why buy it

✅+0.4% higher PassMark.
✅+50% larger total L3 cache (6 MB vs 4 MB).

Trade-offs

❌Worse for gaming: lower average FPS than Celeron G3920 across 50 shared CPU benchmark tests.
❌86.3% higher power demand at 95W vs 51W.
❌No integrated graphics, while Celeron G3920 can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Celeron G3920 better than Phenom II X4 840T?

It depends on what you want from the system. For gaming, Celeron G3920 is ahead with a 3.8% average FPS lead across 50 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Phenom II X4 840T pulls ahead with 0.4% better PassMark. Phenom II X4 840T also has the bigger cache pool with 50% larger total L3 cache (6 MB vs 4 MB).

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

For streaming, content creation, and heavier multitasking, Phenom II X4 840T is the stronger fit. You are getting 0.4% better PassMark, backed by 4 cores and 4 threads. It also has the larger cache pool with 50% larger total L3 cache (6 MB vs 4 MB).

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

Celeron G3920 is the better buy right now. Celeron G3920 comes in at an unclear MSRP at $40 MSRP versus unclear MSRP, and it still gives you a 3.8% average FPS lead across 50 shared CPU game tests in our data. The compromise is that Phenom II X4 840T is still stronger for heavier multi-core work with 0.4% better PassMark. It is also 100.0% better value on MSRP (59.0 vs 0.0 PassMark/$), so you are getting the faster CPU without taking a value hit on paper.

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

Celeron G3920 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2015 vs 2010). That makes it the safer long-term bet.

Celeron G3920 vs Phenom II X4 840T Technical Specifications

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

Celeron G3920

The Celeron G3920 is manufactured by Intel. It was released in 1 September 2015 (10 years ago). It is based on the Skylake (2015−2016) architecture. It features 2 cores and 2 threads. Base frequency is 2.9 GHz, with boost up to 2.9 GHz. L3 cache: 4 MB (total). L2 cache: 256K (per core). Built on 14 nm process technology. Socket: LGA1151. Thermal design power (TDP): 51 Watt. Memory support: DDR3, DDR4. Passmark benchmark score: 2,358 points. Launch price was $52.

Phenom II X4 840T

The Phenom II X4 840T is manufactured by AMD. It was released in 1 September 2010 (15 years ago). It is based on the Zosma (2010−2011) architecture. It features 4 cores and 4 threads. Base frequency is 2.9 GHz, with boost up to 3.2 GHz. L3 cache: 6 MB (total). L2 cache: 512 kB (per core). Built on 45 nm process technology. Socket: AM3. Thermal design power (TDP): 95 Watt. Memory support: DDR3. Passmark benchmark score: 2,367 points. Launch price was $80.

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Processing Power

The Celeron G3920 packs 2 cores / 2 threads, while the Phenom II X4 840T offers 4 cores / 4 threads — the Phenom II X4 840T has 2 more cores. Boost clocks reach 2.9 GHz on the Celeron G3920 versus 3.2 GHz on the Phenom II X4 840T — a 9.8% clock advantage for the Phenom II X4 840T (base: 2.9 GHz vs 2.9 GHz). The Celeron G3920 uses the Skylake (2015−2016) architecture (14 nm), while the Phenom II X4 840T uses Zosma (2010−2011) (45 nm). In PassMark, the Celeron G3920 scores 2,358 against the Phenom II X4 840T's 2,367 — a 0.4% lead for the Phenom II X4 840T. L3 cache: 4 MB (total) on the Celeron G3920 vs 6 MB (total) on the Phenom II X4 840T.

Feature	Celeron G3920	Phenom II X4 840T
Cores / Threads	2 / 2	4 / 4+100%
Boost Clock	2.9 GHz	3.2 GHz+10%
Base Clock	2.9 GHz	2.9 GHz
L3 Cache	4 MB (total)	6 MB (total)+50%
L2 Cache	256K (per core)	512 kB (per core)+100%
Process	14 nm-69%	45 nm
Architecture	Skylake (2015−2016)	Zosma (2010−2011)
PassMark	2,358	2,367
Geekbench 6 Single	699	—
Geekbench 6 Multi	948	—

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Memory & Platform

The Celeron G3920 uses the LGA1151 socket (PCIe 3.0), while the Phenom II X4 840T uses AM3 (PCIe 2.0) — making them incompatible on the same motherboard.

Feature	Celeron G3920	Phenom II X4 840T
Socket	LGA1151	AM3
PCIe Generation	PCIe 3.0+50%	PCIe 2.0
Max RAM Speed	DDR4-2133	—
Max RAM Capacity	64 GB	—
RAM Channels	2	—
ECC Support	Yes	—
PCIe Lanes	16	—

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Advanced Features

Virtualization: VT-x (Celeron G3920) / not specified (Phenom II X4 840T). The Celeron G3920 includes integrated graphics (HD Graphics 510), while the Phenom II X4 840T requires a dedicated GPU. Primary use case: Celeron G3920 targets Budget. Direct competitor: Celeron G3920 rivals Pentium G4400.