Core i3-11100B vs Ryzen 7 7800X3D

Core i3-11100B vs Ryzen 7 7800X3D Performance Spectrum

Core i3-11100B

4 / 8

11,357

0.0%

34,293

+202.0%

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.

Core i3-11100B 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.

Core i3-11100B 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.

Core i3-11100B

2021

Why buy it

✅Draws 65W instead of 120W, a 55W reduction.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 7 7800X3D across 39 shared CPU benchmark tests.
❌Lower PassMark (11,357 vs 34,293).

Ryzen 7 7800X3D

2023

Why buy it

✅Better for gaming: +70.0% higher average FPS across 39 shared CPU benchmark tests.
✅40% more PCIe lanes (28 vs 20) for storage and expansion-heavy builds.

Trade-offs

❌Launch MSRP is still $449 MSRP, while Core i3-11100B mostly shows up through inconsistent older-market listings.
❌84.6% higher power demand at 120W vs 65W.

Quick Answers

So, is Ryzen 7 7800X3D better than Core i3-11100B?

Yes. Ryzen 7 7800X3D is the better all-around CPU here. It gives you a 70.0% average FPS lead across 39 shared CPU game tests in our data, 202% better 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 70.0% more average FPS across 39 shared CPU game tests. It also has a clear cache advantage at 96 MB versus 12 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 202% better PassMark, backed by 8 cores and 16 threads. It also has the larger cache pool with 700% larger total L3 cache (96 MB vs 12 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 at an unclear MSRP at $449 MSRP versus unclear MSRP, and it still gives you a 70.0% average FPS lead across 39 shared CPU game tests in our data. It is also 100.0% better value on MSRP (76.4 vs 0.0 PassMark/$), so you are getting the faster CPU without taking a value hit on paper.

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

Ryzen 7 7800X3D makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2023 vs 2021), a healthier platform with AM5 and DDR5 instead of the older platform, 3D V-Cache and a much larger 96 MB L3 cache instead of 12 MB, and more multi-core headroom with 8 cores / 16 threads instead of 4/8. That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

Core i3-11100B vs Ryzen 7 7800X3D Technical Specifications

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

Core i3-11100B

The Core i3-11100B is manufactured by Intel. It was released in 1 April 2021 (4 years ago). It features 4 cores and 8 threads. Base frequency is 3.6 GHz, with boost up to 4.4 GHz. L3 cache: 12 MB. Built on 10 nm SuperFin process technology. Thermal design power (TDP): 65 Watt. Memory support: Up to 3200 MT/s. Passmark benchmark score: 11,357 points. Launch price was $149.

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.

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Processing Power

The Core i3-11100B packs 4 cores / 8 threads, while the Ryzen 7 7800X3D offers 8 cores / 16 threads — the Ryzen 7 7800X3D has 4 more cores. Boost clocks reach 4.4 GHz on the Core i3-11100B versus 5 GHz on the Ryzen 7 7800X3D — a 12.8% clock advantage for the Ryzen 7 7800X3D (base: 3.6 GHz vs 4.4 GHz). The Ryzen 7 7800X3D is built on the Raphael (Zen4) (2022−2023) architecture. In PassMark, the Core i3-11100B scores 11,357 against the Ryzen 7 7800X3D's 34,293 — a 100.5% lead for the Ryzen 7 7800X3D. Geekbench 6 single-core — the metric most relevant to gaming — records 1,402 vs 2,700, a 63.3% lead for the Ryzen 7 7800X3D that directly translates to higher frame rates. L3 cache: 12 MB on the Core i3-11100B vs 96 MB (total) on the Ryzen 7 7800X3D.

Feature	Core i3-11100B	Ryzen 7 7800X3D
Cores / Threads	4 / 8	8 / 16+100%
Boost Clock	4.4 GHz	5 GHz+14%
Base Clock	3.6 GHz	4.4 GHz+22%
L3 Cache	12 MB	96 MB (total)+700%
L2 Cache	—	1 MB (per core)
Process	10 nm SuperFin	5 nm-50%
Architecture	—	Raphael (Zen4) (2022−2023)
PassMark	11,357	34,293+202%
Cinebench R23 Multi	—	18,500
Geekbench 6 Single	1,402	2,700+93%
Geekbench 6 Multi	—	15,000

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Memory & Platform

Maximum memory speed reaches DDR4-3200 on the Core i3-11100B versus DDR5-5200 on the Ryzen 7 7800X3D — the Ryzen 7 7800X3D supports 62.5% faster memory, which can translate to measurable gains in memory-sensitive workloads. Both support up to 128 GB of RAM. Both feature 2-channel memory with ECC support. PCIe lanes: 20 (Core i3-11100B) vs 28 (Ryzen 7 7800X3D) — the Ryzen 7 7800X3D offers 8 more lanes for additional GPUs or NVMe drives. Chipset compatibility: H470,Z490,H510,B560,H570,Z590 (Core i3-11100B) and X670E,X670,B650E,B650,A620 (Ryzen 7 7800X3D).

Feature	Core i3-11100B	Ryzen 7 7800X3D
Socket	—	AM5
PCIe Generation	PCIe 4.0	PCIe 5.0+25%
Max RAM Speed	DDR4-3200	DDR5-5200+63%
Max RAM Capacity	128 GB	128 GB
RAM Channels	2	2
ECC Support	No	Yes
PCIe Lanes	20	28+40%

🔧

Advanced Features

Only the Ryzen 7 7800X3D has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Both support AVX-512 instructions, benefiting scientific computing, AI inference, and encryption workloads. Virtualization support: VT-x, VT-d, EPT (Core i3-11100B) vs AMD-V (Ryzen 7 7800X3D). Both include integrated graphics — UHD Graphics for 11th Gen (16 EU) (Core i3-11100B) 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: Core i3-11100B targets Desktop, Ryzen 7 7800X3D targets Gaming. Direct competitor: Core i3-11100B rivals Ryzen 3 5300G; Ryzen 7 7800X3D rivals Intel Core i7-14700K.

Feature	Core i3-11100B	Ryzen 7 7800X3D
Integrated GPU	Yes	Yes
IGPU Model	UHD Graphics for 11th Gen (16 EU)	AMD Radeon Graphics (2-core)
Unlocked	No	Yes
AVX-512	Yes	Yes
Virtualization	VT-x, VT-d, EPT	AMD-V
Target Use	Desktop	Gaming