Celeron G5905T vs Phenom II X4 840T

Celeron G5905T vs Phenom II X4 840T Performance Spectrum

Celeron G5905T

2 / 2

2,356

0.0%

2,367

+0.5%

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 G5905T 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 G5905T 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 G5905T

2020

Why buy it

✅Draws 35W instead of 95W, a 60W reduction.
✅100+% more PCIe lanes (16 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with UHD Graphics 610, while Phenom II X4 840T needs a discrete GPU.

Trade-offs

❌Lower PassMark (2,356 vs 2,367).
❌Smaller total L3 cache (4 MB vs 6 MB).
❌Launch MSRP is still $50 MSRP, while Phenom II X4 840T mostly shows up through inconsistent older-market listings.

Phenom II X4 840T

2010

Why buy it

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

Trade-offs

❌171.4% higher power demand at 95W vs 35W.
❌No integrated graphics, while Celeron G5905T can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Phenom II X4 840T better than Celeron G5905T?

Yes. Phenom II X4 840T is the better all-around CPU here. It gives you a 2.9% average FPS lead across 34 shared CPU game tests in our data and 0.5% better PassMark, which is enough to make it the stronger overall pick.

Which one is better for gaming?

If gaming is the priority, Phenom II X4 840T is the better pick. According to our tests, it delivers 2.9% more average FPS across 34 shared CPU game tests.

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 0.5% 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?

Phenom II X4 840T is still the better call for a fresh build. Phenom II X4 840T comes in at an unclear MSRP at unclear MSRP versus $50 MSRP, and it still gives you a 2.9% average FPS lead across 34 shared CPU game tests in our data. Celeron G5905T only looks stronger on raw value math because it is so cheap, but its absolute performance tier is too low to be the better recommendation now. At roughly 2,356 PassMark with 2 cores and 2 threads, it only really makes sense as a bare-minimum stopgap or a very constrained existing-platform upgrade.

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

Celeron G5905T makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2020 vs 2010). That makes it the safer long-term bet.

Celeron G5905T vs Phenom II X4 840T Technical Specifications

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

Celeron G5905T

The Celeron G5905T is manufactured by Intel. It was released in 2007-01-01. It features 2 cores and 2 threads. Base frequency: 3.3 GHz. L3 cache: 4 MB Intel® Smart Cache. Built on 14 nm process technology. Socket: LGA1200. Thermal design power (TDP): 35 Watt. Memory support: DDR4-2666. Passmark benchmark score: 2,356 points. Launch price was $69.

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 G5905T 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. The Phenom II X4 840T is built on the Zosma (2010−2011) architecture. In PassMark, the Celeron G5905T scores 2,356 against the Phenom II X4 840T's 2,367 — a 0.5% lead for the Phenom II X4 840T. L3 cache: 4 MB Intel® Smart Cache on the Celeron G5905T vs 6 MB (total) on the Phenom II X4 840T.

Feature	Celeron G5905T	Phenom II X4 840T
Cores / Threads	2 / 2	4 / 4+100%
Boost Clock	—	3.2 GHz
Base Clock	3.3 GHz+14%	2.9 GHz
L3 Cache	4 MB Intel® Smart Cache	6 MB (total)+50%
L2 Cache	—	512 kB (per core)
Process	14 nm-69%	45 nm
Architecture	—	Zosma (2010−2011)
PassMark	2,356	2,367
Geekbench 6 Single	748	—
Geekbench 6 Multi	750	—

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Memory & Platform

The Celeron G5905T uses the LGA1200 socket (PCIe 3.0), while the Phenom II X4 840T uses AM3 (PCIe 2.0) — making them incompatible on the same motherboard.

Feature	Celeron G5905T	Phenom II X4 840T
Socket	LGA1200	AM3
PCIe Generation	PCIe 3.0+50%	PCIe 2.0
Max RAM Speed	DDR4-2666	—
Max RAM Capacity	128 GB	—
RAM Channels	2	—
ECC Support	Yes	—
PCIe Lanes	16	—

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Advanced Features

Virtualization: VT-x (Celeron G5905T) / not specified (Phenom II X4 840T). The Celeron G5905T includes integrated graphics (UHD Graphics 610), while the Phenom II X4 840T requires a dedicated GPU. Primary use case: Celeron G5905T targets Budget. Direct competitor: Celeron G5905T rivals Pentium Gold G6405T.