A8-3870K vs Celeron G5905T

A8-3870K vs Celeron G5905T Performance Spectrum

A8-3870K

4 / 4

2,360

+0.2%

Ryzen Threadripper PRO 7955WX

Ryzen Threadripper 3990X

Celeron G5905T

2 / 2

2,356

0.0%

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.

A8-3870K vs Celeron G5905T 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.

A8-3870K vs Celeron G5905T: Pros, Cons & Final Verdict

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

A8-3870K

2011

Why buy it

✅+0.2% higher PassMark.
✅25% more PCIe lanes (20 vs 16) for storage and expansion-heavy builds.
✅Includes a boxed cooler (Yes), unlike Celeron G5905T.

Trade-offs

❌Lower Geekbench single-core performance for gaming (380 vs 748).
❌185.7% higher power demand at 100W vs 35W.

Celeron G5905T

2020

Why buy it

✅+96.8% higher Geekbench single-core performance for gaming and desktop responsiveness.
✅Draws 35W instead of 100W, a 65W reduction.

Trade-offs

❌Lower PassMark (2,356 vs 2,360).
❌Launch MSRP is still $50 MSRP, while A8-3870K mostly shows up through inconsistent older-market listings.
❌No boxed cooler included, unlike A8-3870K.

Quick Answers

So, is Celeron G5905T better than A8-3870K?

It depends on what you want from the system. For gaming, Celeron G5905T is ahead with a 1.3% average FPS lead across 50 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, A8-3870K pulls ahead with 0.2% better PassMark.

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

For streaming, content creation, and heavier multitasking, A8-3870K is the stronger fit. You are getting 0.2% better PassMark, backed by 4 cores and 4 threads.

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

Celeron G5905T is the better buy right now. Celeron G5905T comes in at an unclear MSRP at $50 MSRP versus unclear MSRP, and it still gives you a 1.3% average FPS lead across 50 shared CPU game tests in our data. The compromise is that A8-3870K is still stronger for heavier multi-core work with 0.2% better PassMark. It is also 100.0% better value on MSRP (47.1 vs 0.0 PassMark/$), 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 G5905T makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2020 vs 2011). That makes it the safer long-term bet.

A8-3870K vs Celeron G5905T Technical Specifications

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

A8-3870K

The A8-3870K is manufactured by AMD. It was released in 2014-01-01. It is based on the Llano (2011−2012) architecture. It features 4 cores and 4 threads. Base frequency is 3 GHz, with boost up to 3 GHz. L3 cache: 0 kB. L2 cache: 1 MB (per core). Built on 32 nm process technology. Socket: FM1. Thermal design power (TDP): 100 Watt. Memory support: DDR3. Passmark benchmark score: 2,360 points. Launch price was $90.

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.

⚡

Processing Power

The A8-3870K packs 4 cores / 4 threads, while the Celeron G5905T offers 2 cores / 2 threads — the A8-3870K has 2 more cores. The A8-3870K is built on the Llano (2011−2012) architecture. In PassMark, the A8-3870K scores 2,360 against the Celeron G5905T's 2,356 — a 0.2% lead for the A8-3870K. Geekbench 6 single-core — the metric most relevant to gaming — records 380 vs 748, a 65.2% lead for the Celeron G5905T that directly translates to higher frame rates. L3 cache: 0 kB on the A8-3870K vs 4 MB Intel® Smart Cache on the Celeron G5905T.

Feature	A8-3870K	Celeron G5905T
Cores / Threads	4 / 4+100%	2 / 2
Boost Clock	3 GHz	—
Base Clock	3 GHz	3.3 GHz+10%
L3 Cache	0 kB	4 MB Intel® Smart Cache
L2 Cache	1 MB (per core)	—
Process	32 nm	14 nm-56%
Architecture	Llano (2011−2012)	—
PassMark	2,360	2,356
Geekbench 6 Single	380	748+97%
Geekbench 6 Multi	—	750

🧠

Memory & Platform

The A8-3870K uses the FM1 socket (PCIe 2.0), while the Celeron G5905T uses LGA1200 (PCIe 3.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR3-1866 on the A8-3870K versus DDR4-2666 on the Celeron G5905T — the Celeron G5905T supports 42.9% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Celeron G5905T supports up to 128 GB of RAM compared to 32 GB — 300% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 20 (A8-3870K) vs 16 (Celeron G5905T) — the A8-3870K offers 4 more lanes for additional GPUs or NVMe drives. Chipset compatibility: A55,A75 (A8-3870K) and H410,B460,H470,Z490,H510,B560,H570,Z590 (Celeron G5905T).

Feature	A8-3870K	Celeron G5905T
Socket	FM1	LGA1200
PCIe Generation	PCIe 2.0	PCIe 3.0+50%
Max RAM Speed	DDR3-1866	DDR4-2666+43%
Max RAM Capacity	32 GB	128 GB+300%
RAM Channels	2	2
ECC Support	No	Yes
PCIe Lanes	20+25%	16

🔧

Advanced Features

Only the A8-3870K has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Virtualization support: AMD-V (A8-3870K) vs VT-x (Celeron G5905T). Both include integrated graphics — Radeon HD 6550D (A8-3870K) and UHD Graphics 610 (Celeron G5905T) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: A8-3870K targets Budget Gaming Desktop, Celeron G5905T targets Budget. Direct competitor: A8-3870K rivals Core i3-2125; Celeron G5905T rivals Pentium Gold G6405T.