Celeron B840 vs Ryzen 7 7800X3D

CPU

GPU

Celeron B840

2 Cores2 Thrd0 WWMax: 1.9 GHz2011

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Ryzen 7 7800X3D

8 Cores16 Thrd120 WWMax: 5 GHz2023

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Celeron B840 vs Ryzen 7 7800X3D Performance Spectrum

Celeron B840

2 / 2

1,065

0.0%

34,293

+3120.0%

Ryzen Threadripper PRO 7965WX

Ryzen Threadripper 7970X

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 B840 vs Ryzen 7 7800X3D 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 B840 vs Ryzen 7 7800X3D: Pros, Cons & Final Verdict

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

Celeron B840

2011

Why buy it

✅Costs $363 less on MSRP ($86 MSRP vs $449 MSRP).

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 7 7800X3D across 37 shared CPU benchmark tests.
❌Lower Geekbench multi-core (790 vs 15,000).
❌Lower PassMark per dollar, at 12.4 vs 76.4 PassMark/$ ($86 MSRP vs $449 MSRP).
❌Older platform position on PGA988, while Ryzen 7 7800X3D moves to AM5 and DDR5.

Ryzen 7 7800X3D

2023

Why buy it

✅Better for gaming: +980.7% higher average FPS across 37 shared CPU benchmark tests.
✅Delivers 516.7% more PassMark for each dollar spent, at 76.4 vs 12.4 PassMark/$ ($449 MSRP vs $86 MSRP).
✅Newer platform on AM5 with DDR5 support instead of PGA988 and older memory support.
✅75% more PCIe lanes (28 vs 16) for storage and expansion-heavy builds.

Trade-offs

❌
422.1% HIGHER MSRP
$449 MSRPvs$86 MSRP

Quick Answers

So, is Ryzen 7 7800X3D better than Celeron B840?

Yes. Ryzen 7 7800X3D is the better all-around CPU here. It gives you a 980.7% average FPS lead across 37 shared CPU game tests in our data, 1798.7% better Geekbench multi-core, 3120.0% higher PassMark, and the stronger long-term platform, which is enough to make it the stronger overall pick.

Which one is better for gaming?

If gaming is the priority, Ryzen 7 7800X3D is the better pick. According to our tests, it delivers 980.7% more average FPS across 37 shared CPU game tests. It also has a clear cache advantage at 96 MB versus 2 MB.

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

For streaming, content creation, and heavier multitasking, Ryzen 7 7800X3D is the stronger fit. You are getting 1798.7% better Geekbench multi-core, backed by 8 cores and 16 threads. It also has the larger cache pool with 4700% larger total L3 cache (96 MB vs 2 MB).

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

Ryzen 7 7800X3D is the better buy right now. Ryzen 7 7800X3D comes in 422.1% more expensive on MSRP at $449 MSRP versus $86 MSRP, and it still gives you a 980.7% average FPS lead across 37 shared CPU game tests in our data. It is also 516.7% better value on MSRP (76.4 vs 12.4 PassMark/$), so you are getting the faster CPU without taking a value hit on paper.

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

Ryzen 7 7800X3D makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2023 vs 2011), a healthier platform with AM5 and DDR5 instead of PGA988, 3D V-Cache and a much larger 96 MB L3 cache instead of 2 MB, and more multi-core headroom with 8 cores / 16 threads instead of 2/2. That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

Celeron B840 vs Ryzen 7 7800X3D Technical Specifications

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

Celeron B840

The Celeron B840 is manufactured by Intel. It was released in 1 July 2011 (14 years ago). It is based on the Sandy Bridge (2011−2013) architecture. It features 2 cores and 2 threads. Base frequency is 1.9 GHz, with boost up to 1.9 GHz. L3 cache: 2 MB (total). L2 cache: 256K (per core). Built on 32 nm process technology. Socket: PGA988. Thermal design power (TDP): 35 Watt. Memory support: DDR3. Passmark benchmark score: 1,065 points. Launch price was $86.

Ryzen 7 7800X3D

The Ryzen 7 7800X3D is manufactured by AMD. It was released in 4 January 2023 (2 years ago). It is based on the Raphael (Zen4) (2022−2023) architecture. It features 8 cores and 16 threads. Base frequency is 4.4 GHz, with boost up to 5 GHz. L3 cache: 96 MB (total). L2 cache: 1 MB (per core). Built on 5 nm process technology. Socket: AM5. Thermal design power (TDP): 120 Watt. Memory support: DDR5-5200. Passmark benchmark score: 34,293 points. Launch price was $449.

⚡

Processing Power

The Celeron B840 packs 2 cores / 2 threads, while the Ryzen 7 7800X3D offers 8 cores / 16 threads — the Ryzen 7 7800X3D has 6 more cores. Boost clocks reach 1.9 GHz on the Celeron B840 versus 5 GHz on the Ryzen 7 7800X3D — a 89.9% clock advantage for the Ryzen 7 7800X3D (base: 1.9 GHz vs 4.4 GHz). The Celeron B840 uses the Sandy Bridge (2011−2013) architecture (32 nm), while the Ryzen 7 7800X3D uses Raphael (Zen4) (2022−2023) (5 nm). In PassMark, the Celeron B840 scores 1,065 against the Ryzen 7 7800X3D's 34,293 — a 188% lead for the Ryzen 7 7800X3D. Geekbench 6 single-core — the metric most relevant to gaming — records 450 vs 2,700, a 142.9% lead for the Ryzen 7 7800X3D that directly translates to higher frame rates. Multi-core Geekbench: 790 vs 15,000 (180% advantage for the Ryzen 7 7800X3D). L3 cache: 2 MB (total) on the Celeron B840 vs 96 MB (total) on the Ryzen 7 7800X3D.

Feature	Celeron B840	Ryzen 7 7800X3D
Cores / Threads	2 / 2	8 / 16+300%
Boost Clock	1.9 GHz	5 GHz+163%
Base Clock	1.9 GHz	4.4 GHz+132%
L3 Cache	2 MB (total)	96 MB (total)+4700%
L2 Cache	256K (per core)+25500%	1 MB (per core)
Process	32 nm	5 nm-84%
Architecture	Sandy Bridge (2011−2013)	Raphael (Zen4) (2022−2023)
PassMark	1,065	34,293+3120%
Cinebench R23 Multi	—	18,500
Geekbench 6 Single	450	2,700+500%
Geekbench 6 Multi	790	15,000+1799%

🧠

Memory & Platform

The Celeron B840 uses the PGA988 socket (PCIe 2.0), while the Ryzen 7 7800X3D uses AM5 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches 1333 on the Celeron B840 versus DDR5-5200 on the Ryzen 7 7800X3D — the Ryzen 7 7800X3D supports 290.1% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Ryzen 7 7800X3D supports up to 128 GB of RAM compared to 16 GB — 700% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 16 (Celeron B840) vs 28 (Ryzen 7 7800X3D) — the Ryzen 7 7800X3D offers 12 more lanes for additional GPUs or NVMe drives. Chipset compatibility: HM65,HM67,QM67 (Celeron B840) and X670E,X670,B650E,B650,A620 (Ryzen 7 7800X3D).

Feature	Celeron B840	Ryzen 7 7800X3D
Socket	PGA988	AM5
PCIe Generation	PCIe 2.0	PCIe 5.0+150%
Max RAM Speed	1333	DDR5-5200+290%
Max RAM Capacity	16 GB	128 GB+700%
RAM Channels	2	2
ECC Support	No	Yes
PCIe Lanes	16	28+75%

🔧

Advanced Features

Only the Ryzen 7 7800X3D has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Only the Ryzen 7 7800X3D supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: true (Celeron B840) vs AMD-V (Ryzen 7 7800X3D). Both include integrated graphics — Intel HD Graphics (Sandy Bridge) (Celeron B840) and AMD Radeon Graphics (2-core) (Ryzen 7 7800X3D) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Celeron B840 targets Budget, Ryzen 7 7800X3D targets Gaming. Direct competitor: Celeron B840 rivals Pentium B940; Ryzen 7 7800X3D rivals Intel Core i7-14700K.

Feature	Celeron B840	Ryzen 7 7800X3D
Integrated GPU	Yes	Yes
IGPU Model	Intel HD Graphics (Sandy Bridge)	AMD Radeon Graphics (2-core)
Unlocked	No	Yes
AVX-512	No	Yes
Virtualization	true	AMD-V
Target Use	Budget	Gaming

💰

Value Analysis

At launch, the Celeron B840 was priced at $86, while the Ryzen 7 7800X3D came in at $449. On launch pricing ($86 vs $449), Celeron B840 was $363 cheaper. In terms of value on MSRP (PassMark points per dollar), the Celeron B840 delivers 12.4 pts/$ vs 76.4 pts/$ for the Ryzen 7 7800X3D — making the Ryzen 7 7800X3D the 144.2% better value option.

Feature	Celeron B840	Ryzen 7 7800X3D
MSRP	$86-81%	$449
Performance per Dollar	12.4	76.4+516%
Release Date	2011	2023

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