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.

Head-to-Head Verdict, Benchmarks, Value & Long-Term Outlook

This comparison brings together gaming FPS, productivity performance, platform differences, power efficiency, pricing context, and upgrade path so you can see which CPU actually makes more sense.

FX-6120

2012

Why buy it

✅Costs $261 less on MSRP ($188 MSRP vs $449 MSRP).

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 7 5800X across 4 shared CPU benchmark tests.
❌Lower PassMark (3,853 vs 27,712).
❌Smaller total L3 cache (8 MB vs 32 MB).
❌Lower PassMark per dollar, at 20.5 vs 61.7 PassMark/$ ($188 MSRP vs $449 MSRP).

Ryzen 7 5800X

2020

Why buy it

✅Better for gaming: +338.5% higher average FPS across 4 shared CPU benchmark tests.
✅+300% larger total L3 cache (32 MB vs 8 MB).
✅Delivers 201.1% more PassMark for each dollar spent, at 61.7 vs 20.5 PassMark/$ ($449 MSRP vs $188 MSRP).
✅100+% more PCIe lanes (24 vs 0) for storage and expansion-heavy builds.

Trade-offs

❌
138.8% HIGHER MSRP
$449 MSRPvs$188 MSRP

FX-6120

2012

Ryzen 7 5800X

2020

Why buy it

✅Costs $261 less on MSRP ($188 MSRP vs $449 MSRP).

Why buy it

✅Better for gaming: +338.5% higher average FPS across 4 shared CPU benchmark tests.
✅+300% larger total L3 cache (32 MB vs 8 MB).
✅Delivers 201.1% more PassMark for each dollar spent, at 61.7 vs 20.5 PassMark/$ ($449 MSRP vs $188 MSRP).
✅100+% more PCIe lanes (24 vs 0) for storage and expansion-heavy builds.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 7 5800X across 4 shared CPU benchmark tests.
❌Lower PassMark (3,853 vs 27,712).
❌Smaller total L3 cache (8 MB vs 32 MB).
❌Lower PassMark per dollar, at 20.5 vs 61.7 PassMark/$ ($188 MSRP vs $449 MSRP).

Trade-offs

❌
138.8% HIGHER MSRP
$449 MSRPvs$188 MSRP

Quick Answers

So, is Ryzen 7 5800X better than FX-6120?

Yes. Ryzen 7 5800X is the better overall CPU here. You are getting a 338.5% average FPS lead across 4 shared CPU game tests in our data, 619.2% better PassMark, and the stronger long-term platform, which makes it the stronger all-around choice.

Which one is better for gaming?

If gaming is the priority, Ryzen 7 5800X is the better pick here. According to our tests, it delivers 338.5% more average FPS across 4 shared CPU game tests.

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

For streaming, content creation, and heavier multitasking, Ryzen 7 5800X is the better fit. You are getting 619.2% better PassMark, backed by 8 cores and 16 threads. It also carries the larger cache pool with 300% larger total L3 cache (32 MB vs 8 MB).

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

Ryzen 7 5800X is the smarter buy today. Ryzen 7 5800X is 138.8% more expensive on MSRP at $449 MSRP versus $188 MSRP, and it gives you a 338.5% average FPS lead across 4 shared CPU game tests in our data. It is also 201.1% better value on MSRP (61.7 vs 20.5 PassMark/$), so the better CPU is not just faster, it is also the cleaner value play on paper.

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

Ryzen 7 5800X is the more future-proof choice for 2026 and beyond. You are getting a newer CPU generation (2020 vs 2012), 300% larger total L3 cache (32 MB vs 8 MB), and more multi-core headroom with 8 cores / 16 threads instead of 6/6. That extra compute headroom should age better as games, background tasks, and creator workloads get heavier.

Games Benchmarks

Paired with RTX 4090

To accurately isolate CPU performance, all benchmarks below use an NVIDIA RTX 4090 as the reference GPU. This eliminates GPU-side bottlenecks and highlights pure processing throughput differences between the CPUs.

Note: Real-world results may vary based on your actual GPU. CPU performance impact is more visible in processing-intensive titles and high-refresh-rate gaming scenarios.

FX-6120 Benchmark Check

Ryzen 7 5800X Benchmark Check

Path of Exile 2

Preset	FX-6120	Ryzen 7 5800X
1080p
low	96 FPS	206 FPS
medium	96 FPS	178 FPS
high	96 FPS	146 FPS
ultra	96 FPS	110 FPS
1440p
low	96 FPS	170 FPS
medium	96 FPS	142 FPS
high	94 FPS	115 FPS
ultra	78 FPS	88 FPS
4K
low	65 FPS	83 FPS
medium	57 FPS	74 FPS
high	45 FPS	59 FPS
ultra	36 FPS	46 FPS

Open FX-6120 Open Ryzen 7 5800X

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	FX-6120	Ryzen 7 5800X
1080p
low	96 FPS	662 FPS
medium	96 FPS	558 FPS
high	96 FPS	466 FPS
ultra	96 FPS	417 FPS
1440p
low	96 FPS	563 FPS
medium	96 FPS	493 FPS
high	96 FPS	423 FPS
ultra	96 FPS	361 FPS
4K
low	96 FPS	350 FPS
medium	96 FPS	308 FPS
high	96 FPS	288 FPS
ultra	96 FPS	250 FPS

Open FX-6120 Open Ryzen 7 5800X

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	FX-6120	Ryzen 7 5800X
1080p
low	96 FPS	693 FPS
medium	96 FPS	651 FPS
high	96 FPS	570 FPS
ultra	96 FPS	464 FPS
1440p
low	96 FPS	693 FPS
medium	96 FPS	573 FPS
high	96 FPS	498 FPS
ultra	96 FPS	413 FPS
4K
low	96 FPS	484 FPS
medium	96 FPS	410 FPS
high	96 FPS	363 FPS
ultra	96 FPS	302 FPS

Open FX-6120 Open Ryzen 7 5800X

League of Legends

League of Legends

Valorant

Preset	FX-6120	Ryzen 7 5800X
1080p
low	96 FPS	693 FPS
medium	96 FPS	693 FPS
high	96 FPS	693 FPS
ultra	96 FPS	693 FPS
1440p
low	96 FPS	693 FPS
medium	96 FPS	693 FPS
high	96 FPS	672 FPS
ultra	96 FPS	593 FPS
4K
low	96 FPS	604 FPS
medium	96 FPS	550 FPS
high	96 FPS	495 FPS
ultra	96 FPS	436 FPS

Open FX-6120 Open Ryzen 7 5800X

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of FX-6120 and Ryzen 7 5800X

FX-6120

The FX-6120 is manufactured by AMD. It was released in 23 October 2012 (13 years ago). It is based on the Zambezi (2011−2012) architecture. It features 6 cores and 6 threads. Base frequency is 3.6 GHz, with boost up to 4.2 GHz. L3 cache: 8 MB (total). L2 cache: 6 MB. Built on 32 nm process technology. Socket: AM3+. Thermal design power (TDP): 95 Watt. Memory support: DDR3. Passmark benchmark score: 3,853 points. Launch price was $69.

Ryzen 7 5800X

The Ryzen 7 5800X is manufactured by AMD. It was released in 5 November 2020 (5 years ago). It is based on the Vermeer (Zen 3) (2020−2022) architecture. It features 8 cores and 16 threads. Base frequency is 3.8 GHz, with boost up to 4.7 GHz. L3 cache: 32 MB. L2 cache: 512K (per core). Built on 7 nm, 12 nm process technology. Socket: AM4. Thermal design power (TDP): 105 Watt. Memory support: DDR4. Passmark benchmark score: 27,712 points. Launch price was $449.

⚡

Processing Power

The FX-6120 packs 6 cores / 6 threads, while the Ryzen 7 5800X offers 8 cores / 16 threads — the Ryzen 7 5800X has 2 more cores. Boost clocks reach 4.2 GHz on the FX-6120 versus 4.7 GHz on the Ryzen 7 5800X — a 11.2% clock advantage for the Ryzen 7 5800X (base: 3.6 GHz vs 3.8 GHz). The FX-6120 uses the Zambezi (2011−2012) architecture (32 nm), while the Ryzen 7 5800X uses Vermeer (Zen 3) (2020−2022) (7 nm, 12 nm). In PassMark, the FX-6120 scores 3,853 against the Ryzen 7 5800X's 27,712 — a 151.2% lead for the Ryzen 7 5800X. L3 cache: 8 MB (total) on the FX-6120 vs 32 MB on the Ryzen 7 5800X.

Feature	FX-6120	Ryzen 7 5800X
Cores / Threads	6 / 6	8 / 16+33%
Boost Clock	4.2 GHz	4.7 GHz+12%
Base Clock	3.6 GHz	3.8 GHz+6%
L3 Cache	8 MB (total)	32 MB+300%
L2 Cache	6 MB+1100%	512K (per core)
Process	32 nm	7 nm, 12 nm-78%
Architecture	Zambezi (2011−2012)	Vermeer (Zen 3) (2020−2022)
PassMark	3,853	27,712+619%

🧠

Memory & Platform

The FX-6120 uses the AM3+ socket (PCIe 2.0), while the Ryzen 7 5800X uses AM4 (PCIe 4.0) — making them incompatible on the same motherboard.

Feature	FX-6120	Ryzen 7 5800X
Socket	AM3+	AM4
PCIe Generation	PCIe 2.0	PCIe 4.0+100%
Max RAM Speed	—	DDR4-3200
Max RAM Capacity	—	128 GB
RAM Channels	—	2
ECC Support	—	Yes
PCIe Lanes	—	24

🔧

Advanced Features

Virtualization: not specified (FX-6120) / AMD-V (Ryzen 7 5800X). Primary use case: Ryzen 7 5800X targets Desktop.

Feature	FX-6120	Ryzen 7 5800X
Integrated GPU	—	No
Unlocked	—	Yes
AVX-512	—	No
Virtualization	—	AMD-V
Target Use	—	Desktop

💰

Value Analysis

The FX-6120 launched at $188 MSRP, while the Ryzen 7 5800X debuted at $449. On MSRP ($188 vs $449), the FX-6120 is $261 cheaper. In terms of value on MSRP (PassMark points per dollar), the FX-6120 delivers 20.5 pts/$ vs 61.7 pts/$ for the Ryzen 7 5800X — making the Ryzen 7 5800X the 100.3% better value option.