Core i7-5820K vs Ryzen 3 4300G

Core i7-5820K vs Ryzen 3 4300G Performance Spectrum

Core i7-5820K

6 / 12

9,826

0.0%

9,938

+1.1%

Ryzen Threadripper PRO 3995WX

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 i7-5820K vs Ryzen 3 4300G 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 i7-5820K vs Ryzen 3 4300G: Pros, Cons & Final Verdict

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

Core i7-5820K

2014

Why buy it

✅+275% larger total L3 cache (15 MB vs 4 MB).
✅100+% more PCIe lanes (28 vs 0) for storage and expansion-heavy builds.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 3 4300G across 50 shared CPU benchmark tests.
❌Lower PassMark (9,826 vs 9,938).
❌Lower PassMark per dollar, at 25.3 vs 66.7 PassMark/$ ($389 MSRP vs $149 MSRP).
❌115.4% higher power demand at 140W vs 65W.

Ryzen 3 4300G

2020

Why buy it

✅Better for gaming: +6.8% higher average FPS across 50 shared CPU benchmark tests.
✅Costs $240 less on MSRP ($149 MSRP vs $389 MSRP).
✅Delivers 164.0% more PassMark for each dollar spent, at 66.7 vs 25.3 PassMark/$ ($149 MSRP vs $389 MSRP).
✅Draws 65W instead of 140W, a 75W reduction.

Trade-offs

❌Smaller total L3 cache (4 MB vs 15 MB).

Quick Answers

So, is Ryzen 3 4300G better than Core i7-5820K?

Yes. Ryzen 3 4300G is the better all-around CPU here. It gives you a 6.8% average FPS lead across 50 shared CPU game tests in our data, 1.1% 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 3 4300G is the better pick. According to our tests, it delivers 6.8% more average FPS across 50 shared CPU game tests.

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

For streaming, content creation, and heavier multitasking, Ryzen 3 4300G is the stronger fit. You are getting 1.1% better PassMark, backed by 4 cores and 8 threads.

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

Ryzen 3 4300G is the better buy right now. Ryzen 3 4300G comes in $240 cheaper on MSRP at $149 MSRP versus $389 MSRP, and it still gives you a 6.8% average FPS lead across 50 shared CPU game tests in our data. It is also 164.0% better value on MSRP (66.7 vs 25.3 PassMark/$), 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 3 4300G makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2020 vs 2014) and more multi-core headroom with 4 cores / 8 threads instead of 6/12. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

Core i7-5820K vs Ryzen 3 4300G Technical Specifications

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

Core i7-5820K

The Core i7-5820K is manufactured by Intel. It was released in 1 September 2014 (11 years ago). It is based on the Haswell-E (2014) architecture. It features 6 cores and 12 threads. Base frequency is 3.3 GHz, with boost up to 3.6 GHz. L3 cache: 15 MB (total). L2 cache: 256 kB (per core). Built on 22 nm process technology. Socket: LGA2011. Thermal design power (TDP): 140 Watt. Memory support: DDR4. Passmark benchmark score: 9,826 points. Launch price was $410.

Ryzen 3 4300G

The Ryzen 3 4300G is manufactured by AMD. It was released in 21 July 2020 (5 years ago). It is based on the Renoir (2020−2023) architecture. It features 4 cores and 8 threads. Base frequency is 3.8 GHz, with boost up to 4 GHz. L3 cache: 4 MB (total). L2 cache: 512 kB (per core). Built on 7 nm process technology. Socket: AM4. Thermal design power (TDP): 65 Watt. Memory support: DDR4-3200. Passmark benchmark score: 9,938 points. Launch price was $149.

⚡

Processing Power

The Core i7-5820K packs 6 cores / 12 threads, while the Ryzen 3 4300G offers 4 cores / 8 threads — the Core i7-5820K has 2 more cores. Boost clocks reach 3.6 GHz on the Core i7-5820K versus 4 GHz on the Ryzen 3 4300G — a 10.5% clock advantage for the Ryzen 3 4300G (base: 3.3 GHz vs 3.8 GHz). The Core i7-5820K uses the Haswell-E (2014) architecture (22 nm), while the Ryzen 3 4300G uses Renoir (2020−2023) (7 nm). In PassMark, the Core i7-5820K scores 9,826 against the Ryzen 3 4300G's 9,938 — a 1.1% lead for the Ryzen 3 4300G. L3 cache: 15 MB (total) on the Core i7-5820K vs 4 MB (total) on the Ryzen 3 4300G.

Feature	Core i7-5820K	Ryzen 3 4300G
Cores / Threads	6 / 12+50%	4 / 8
Boost Clock	3.6 GHz	4 GHz+11%
Base Clock	3.3 GHz	3.8 GHz+15%
L3 Cache	15 MB (total)+275%	4 MB (total)
L2 Cache	256 kB (per core)	512 kB (per core)+100%
Process	22 nm	7 nm-68%
Architecture	Haswell-E (2014)	Renoir (2020−2023)
PassMark	9,826	9,938+1%
Cinebench R23 Multi	5,700	—
Geekbench 6 Single	1,134	—
Geekbench 6 Multi	5,383	—

🧠

Memory & Platform

The Core i7-5820K uses the LGA2011 socket (PCIe 3.0), while the Ryzen 3 4300G uses AM4 (PCIe 3.0) — making them incompatible on the same motherboard.

Feature	Core i7-5820K	Ryzen 3 4300G
Socket	LGA2011	AM4
PCIe Generation	PCIe 3.0	PCIe 3.0
Max RAM Speed	DDR4-2133	—
Max RAM Capacity	64 GB	—
RAM Channels	4	—
ECC Support	No	—
PCIe Lanes	28	—

🔧

Advanced Features

Virtualization: Yes (Core i7-5820K) / not specified (Ryzen 3 4300G). Primary use case: Core i7-5820K targets Enthusiast Workstation. Direct competitor: Core i7-5820K rivals Ryzen 5 1600.

Feature	Core i7-5820K	Ryzen 3 4300G
Integrated GPU	No	—
Unlocked	Yes	—
AVX-512	No	—
Virtualization	Yes	—
Target Use	Enthusiast Workstation	—

💰

Value Analysis

At launch, the Core i7-5820K was priced at $389, while the Ryzen 3 4300G came in at $149. On launch pricing ($389 vs $149), Ryzen 3 4300G was $240 cheaper. In terms of value on MSRP (PassMark points per dollar), the Core i7-5820K delivers 25.3 pts/$ vs 66.7 pts/$ for the Ryzen 3 4300G — making the Ryzen 3 4300G the 90.1% better value option.

Feature	Core i7-5820K	Ryzen 3 4300G
MSRP	$389	$149-62%
Performance per Dollar	25.3	66.7+164%
Release Date	2014	2020

Search Core i7-5820K on Amazon

Search Ryzen 3 4300G on Amazon

Affiliate Disclosure

ChipVERSUS is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. We may earn a commission on qualifying purchases made through our links. This comes at no additional cost to you and helps support our work in providing comprehensive PC building guides and tools.

Amazon and the Amazon logo are trademarks of Amazon.com, Inc. or its affiliates.