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Athlon 64 FX-51 vs Ryzen 7 7800X3D

CPUCPUGPUGPU
AMD

Athlon 64 FX-51

1 Cores1 Thrd89 WWMax: 2.2 GHz2003
Similar parts
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VS
AMD

Ryzen 7 7800X3D

8 Cores16 Thrd120 WWMax: 5 GHz2023
Ryzen family
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Athlon 64 FX-51 vs Ryzen 7 7800X3D Performance Spectrum

Athlon 64 FX-51
1 / 1
615
0.0%
brand logoAthlon XP 2600+
brand logoAthlon XP 3000+
brand logoAthlon 64 3100+
brand logoAthlon 64 3400+
brand logoRyzen 7 PRO 6860Z
brand logoRyzen Threadripper PRO 3955WX
brand logoRyzen Threadripper PRO 7955WX
brand logoRyzen Threadripper 3990X
Ryzen 7 7800X3D
8 / 16
34,293
+5476.1%
brand logoRyzen 7 7445HS
brand logoRyzen 7 6800H
brand logoRyzen 5 7500F
brand logoRyzen 9 8945H
brand logoRyzen 9 7900X3D
brand logoRyzen 9 9950X
brand logoRyzen Threadripper PRO 7965WX
brand logoRyzen 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.

Athlon 64 FX-51 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.

Path of Exile 2

Path of Exile 2

1080P
Athlon 64 FX-51
low15 FPS
medium15 FPS
high15 FPS
ultra15 FPS
1080P
Ryzen 7 7800X3D
low266 FPS
medium247 FPS
high211 FPS
ultra186 FPS
Counter-Strike 2

Counter-Strike 2

1080P
Athlon 64 FX-51
low15 FPS
medium15 FPS
high15 FPS
ultra15 FPS
1080P
Ryzen 7 7800X3D
low857 FPS
medium735 FPS
high579 FPS
ultra491 FPS
League of Legends

League of Legends

1080P
Athlon 64 FX-51
low15 FPS
medium15 FPS
high15 FPS
ultra15 FPS
1080P
Ryzen 7 7800X3D
low857 FPS
medium857 FPS
high857 FPS
ultra857 FPS
Valorant

Valorant

1080P
Athlon 64 FX-51
low15 FPS
medium15 FPS
high15 FPS
ultra15 FPS
1080P
Ryzen 7 7800X3D
low857 FPS
medium857 FPS
high857 FPS
ultra782 FPS
Among Us

Among Us

1080P
Athlon 64 FX-51
low15 FPS
medium15 FPS
high15 FPS
ultra15 FPS
1080P
Ryzen 7 7800X3D
low60 FPS
medium60 FPS
high60 FPS
ultra60 FPS
Apex Legends

Apex Legends

1080P
Athlon 64 FX-51
low15 FPS
medium15 FPS
high15 FPS
ultra15 FPS
1080P
Ryzen 7 7800X3D
low300 FPS
medium300 FPS
high300 FPS
ultra300 FPS
Baldur's Gate 3

Baldur's Gate 3

1080P
Athlon 64 FX-51
low15 FPS
medium15 FPS
high15 FPS
ultra15 FPS
1080P
Ryzen 7 7800X3D
low343 FPS
medium287 FPS
high216 FPS
ultra173 FPS
Call of Duty: Black Ops 6

Call of Duty: Black Ops 6

1080P
Athlon 64 FX-51
low15 FPS
medium15 FPS
high15 FPS
ultra15 FPS
1080P
Ryzen 7 7800X3D
low380 FPS
medium346 FPS
high302 FPS
ultra259 FPS
Civilization VI

Civilization VI

1080P
Athlon 64 FX-51
low15 FPS
medium15 FPS
high15 FPS
ultra15 FPS
1080P
Ryzen 7 7800X3D
low317 FPS
medium268 FPS
high234 FPS
ultra195 FPS
Delta Force

Delta Force

1080P
Athlon 64 FX-51
low15 FPS
medium15 FPS
high15 FPS
ultra15 FPS
1080P
Ryzen 7 7800X3D
low343 FPS
medium318 FPS
high296 FPS
ultra243 FPS
Check FPS with Custom Builds

Athlon 64 FX-51 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.

Athlon 64 FX-51

2003

Why buy it

  • ✅Draws 89W instead of 120W, a 31W reduction.

Trade-offs

  • ❌Worse for gaming: lower average FPS than Ryzen 7 7800X3D across 17 shared CPU benchmark tests.
  • ❌Lower PassMark (615 vs 34,293).
  • ❌Lower PassMark per dollar, at 0.8 vs 76.4 PassMark/$ ($733 MSRP vs $449 MSRP).
  • ❌Older platform position on 940, while Ryzen 7 7800X3D moves to AM5 and DDR5.
  • ❌No integrated graphics, while Ryzen 7 7800X3D can still boot and troubleshoot without a discrete GPU.

Ryzen 7 7800X3D

2023

Why buy it

  • ✅Better for gaming: +1772.2% higher average FPS across 17 shared CPU benchmark tests.
  • ✅Costs $284 less on MSRP ($449 MSRP vs $733 MSRP).
  • ✅Delivers 9003.1% more PassMark for each dollar spent, at 76.4 vs 0.8 PassMark/$ ($449 MSRP vs $733 MSRP).
  • ✅Newer platform on AM5 with DDR5 support instead of 940 and older memory support.
  • ✅100+% more PCIe lanes (28 vs 0) for storage and expansion-heavy builds.

Trade-offs

  • ❌34.8% higher power demand at 120W vs 89W.

Quick Answers

So, is Ryzen 7 7800X3D better than Athlon 64 FX-51?
Yes. Ryzen 7 7800X3D is the better all-around CPU here. It gives you a 1772.2% average FPS lead across 17 shared CPU game tests in our data, 5476.1% 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 7 7800X3D is the better pick. According to our tests, it delivers 1772.2% more average FPS across 17 shared CPU game tests. It also has a clear cache advantage at 96 MB versus null.
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 5476.1% better PassMark, backed by 8 cores and 16 threads.
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 $284 cheaper on MSRP at $449 MSRP versus $733 MSRP, and it still gives you a 1772.2% average FPS lead across 17 shared CPU game tests in our data. It is also 9003.1% better value on MSRP (76.4 vs 0.8 PassMark/$), 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 2003), a healthier platform with AM5 and DDR5 instead of 940, 3D V-Cache and a much larger 96 MB L3 cache instead of null, and more multi-core headroom with 8 cores / 16 threads instead of 1/1. That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

Athlon 64 FX-51 vs Ryzen 7 7800X3D Technical Specifications

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

AMD

Athlon 64 FX-51

The Athlon 64 FX-51 is manufactured by AMD. It was released in 2009-01-01. It is based on the SledgeHammer (2003−2005) architecture. It features 1 cores and 1 threads. Max frequency: 2.2 GHz. L3 cache: 0 kB. L2 cache: 1 MB. Built on 130 nm process technology. Socket: 940. Thermal design power (TDP): 89 Watt. Passmark benchmark score: 615 points. Launch price was $149.

AMD

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 Athlon 64 FX-51 packs 1 cores / 1 threads, while the Ryzen 7 7800X3D offers 8 cores / 16 threads — the Ryzen 7 7800X3D has 7 more cores. Boost clocks reach 2.2 GHz on the Athlon 64 FX-51 versus 5 GHz on the Ryzen 7 7800X3D — a 77.8% clock advantage for the Ryzen 7 7800X3D. The Athlon 64 FX-51 uses the SledgeHammer (2003−2005) architecture (130 nm), while the Ryzen 7 7800X3D uses Raphael (Zen4) (2022−2023) (5 nm). In PassMark, the Athlon 64 FX-51 scores 615 against the Ryzen 7 7800X3D's 34,293 — a 193% lead for the Ryzen 7 7800X3D. L3 cache: 0 kB on the Athlon 64 FX-51 vs 96 MB (total) on the Ryzen 7 7800X3D.

FeatureAthlon 64 FX-51Ryzen 7 7800X3D
Cores / Threads
1 / 1
8 / 16+700%
Boost Clock
2.2 GHz
5 GHz+127%
Base Clock
—
4.4 GHz
L3 Cache
0 kB
96 MB (total)
L2 Cache
1 MB
1 MB (per core)
Process
130 nm
5 nm-96%
Architecture
SledgeHammer (2003−2005)
Raphael (Zen4) (2022−2023)
PassMark
615
34,293+5476%
Cinebench R23 Multi
—
18,500
Geekbench 6 Single
—
2,700
Geekbench 6 Multi
—
15,000
🧠

Memory & Platform

The Athlon 64 FX-51 uses the 940 socket (PCIe 1.1), while the Ryzen 7 7800X3D uses AM5 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR-400 on the Athlon 64 FX-51 versus DDR5-5200 on the Ryzen 7 7800X3D — the Ryzen 7 7800X3D supports -1400% 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 4 GB — 3100% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 0 (Athlon 64 FX-51) vs 28 (Ryzen 7 7800X3D) — the Ryzen 7 7800X3D offers 28 more lanes for additional GPUs or NVMe drives. Chipset compatibility: AMD 940 (Athlon 64 FX-51) and X670E,X670,B650E,B650,A620 (Ryzen 7 7800X3D).

FeatureAthlon 64 FX-51Ryzen 7 7800X3D
Socket
940
AM5
PCIe Generation
PCIe 1.1
PCIe 5.0+355%
Max RAM Speed
DDR-400
DDR5-5200
Max RAM Capacity
4 GB
128 GB+3100%
RAM Channels
2
2
ECC Support
Yes
Yes
PCIe Lanes
0
28
🔧

Advanced Features

Virtualization: not specified (Athlon 64 FX-51) / AMD-V (Ryzen 7 7800X3D). The Ryzen 7 7800X3D includes integrated graphics (AMD Radeon Graphics (2-core)), while the Athlon 64 FX-51 requires a dedicated GPU. Primary use case: Ryzen 7 7800X3D targets Gaming. Direct competitor: Ryzen 7 7800X3D rivals Intel Core i7-14700K.

FeatureAthlon 64 FX-51Ryzen 7 7800X3D
Integrated GPU
No
Yes
IGPU Model
—
AMD Radeon Graphics (2-core)
Unlocked
—
Yes
AVX-512
—
Yes
Virtualization
—
AMD-V
Target Use
—
Gaming
💰

Value Analysis

At launch, the Athlon 64 FX-51 was priced at $733, while the Ryzen 7 7800X3D came in at $449. On launch pricing ($733 vs $449), Ryzen 7 7800X3D was $284 cheaper. In terms of value on MSRP (PassMark points per dollar), the Athlon 64 FX-51 delivers 0.8 pts/$ vs 76.4 pts/$ for the Ryzen 7 7800X3D — making the Ryzen 7 7800X3D the 195.7% better value option.

FeatureAthlon 64 FX-51Ryzen 7 7800X3D
MSRP
$733
$449-39%
Performance per Dollar
0.8
76.4+9450%
Release Date
2003
2023
Search Athlon 64 FX-51 on AmazonSearch Ryzen 7 7800X3D on Amazon

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