Ryzen 9 5900X vs Xeon E5-2679 v4

AMD

Ryzen 9 5900X

12 Cores24 Thrd105 WWMax: 4.8 GHz2020
Ryzen family
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VS
Intel

Xeon E5-2679 v4

20 Cores40 Thrd200 WWMax: 3.3 GHz2016
Similar parts
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Ryzen 9 5900X vs Xeon E5-2679 v4 Performance Spectrum

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.

Ryzen 9 5900X vs Xeon E5-2679 v4 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.

Ryzen 9 5900X vs Xeon E5-2679 v4: Pros, Cons & Final Verdict

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

Ryzen 9 5900X

2020

Why buy it

  • Better for gaming: +36.3% higher average FPS across 50 shared CPU benchmark tests.
  • +28% larger total L3 cache (64 MB vs 50 MB).
  • Costs $2,153 less on MSRP ($549 MSRP vs $2,702 MSRP).
  • Delivers 694.5% more PassMark for each dollar spent, at 71.0 vs 8.9 PassMark/$ ($549 MSRP vs $2,702 MSRP).
  • Draws 105W instead of 200W, a 95W reduction.

Trade-offs

  • Lower Geekbench multi-core (11,888 vs 12,000).
  • Less compelling for workstation-style loads than Xeon E5-2679 v4, which brings 20 cores / 40 threads and 40 PCIe lanes.

Xeon E5-2679 v4

2016

Why buy it

  • +0.9% higher Geekbench multi-core.
  • Better for workstations and heavier parallel workloads: 20 cores / 40 threads, plus 40 PCIe lanes vs 24.
  • 66.7% more PCIe lanes (40 vs 24) for storage and expansion-heavy builds.

Trade-offs

  • Worse for gaming: lower average FPS than Ryzen 9 5900X across 50 shared CPU benchmark tests.
  • Smaller total L3 cache (50 MB vs 64 MB).
  • Lower PassMark per dollar, at 8.9 vs 71.0 PassMark/$ ($2,702 MSRP vs $549 MSRP).
  • 90.5% higher power demand at 200W vs 105W.

Quick Answers

So, is Ryzen 9 5900X better than Xeon E5-2679 v4?
Not really, because they are built for different jobs. Xeon E5-2679 v4 makes more sense for workstation-style multi-core throughput, while Ryzen 9 5900X is the more practical desktop choice for gaming, platform cost, and everyday use.
Which one is better for streaming, content creation, and heavy multitasking?
For streaming, content creation, and heavier multitasking, Xeon E5-2679 v4 is the stronger fit. You are getting 0.9% better Geekbench multi-core, backed by 20 cores and 40 threads.
Which one is the smarter buy today, not just the cheaper CPU?
Ryzen 9 5900X is the better buy right now. Ryzen 9 5900X comes in $2,153 cheaper on MSRP at $549 MSRP versus $2,702 MSRP, and it still gives you a 36.3% average FPS lead across 50 shared CPU game tests in our data. The compromise is that Xeon E5-2679 v4 is still stronger for heavier multi-core work with 0.9% better Geekbench multi-core. It is also 694.5% better value on MSRP (71.0 vs 8.9 PassMark/$), 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 9 5900X makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2020 vs 2016) and 28% larger total L3 cache (64 MB vs 50 MB). That makes it the safer long-term bet.

Ryzen 9 5900X vs Xeon E5-2679 v4 Technical Specifications

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

AMD

Ryzen 9 5900X

The Ryzen 9 5900X is manufactured by AMD. It was released in 5 November 2020 (5 years ago). It is based on the Vermeer (Zen3) (2020−2022) architecture. It features 12 cores and 24 threads. Base frequency is 3.7 GHz, with boost up to 4.8 GHz. L3 cache: 64 MB. L2 cache: 512K (per core). Built on 7 nm, 12 nm process technology. Socket: AM4. Thermal design power (TDP): 105 Watt. Memory support: DDR4-3200. Passmark benchmark score: 38,955 points. Launch price was $549.

Intel

Xeon E5-2679 v4

The Xeon E5-2679 v4 is manufactured by Intel. It was released in 2015-01-01. It is based on the Broadwell (2015−2019) architecture. It features 20 cores and 40 threads. Base frequency is 2.5 GHz, with boost up to 3.3 GHz. L3 cache: 50 MB. L2 cache: 5 MB. Built on 14 nm process technology. Socket: LGA2011-3. Thermal design power (TDP): 200 Watt. Memory support: DDR4-1600, DDR4-1866, DDR4-2133, DDR4-2400. Passmark benchmark score: 24,131 points. Launch price was $800.

Processing Power

The Ryzen 9 5900X packs 12 cores / 24 threads, while the Xeon E5-2679 v4 offers 20 cores / 40 threads — the Xeon E5-2679 v4 has 8 more cores. Boost clocks reach 4.8 GHz on the Ryzen 9 5900X versus 3.3 GHz on the Xeon E5-2679 v4 — a 37% clock advantage for the Ryzen 9 5900X (base: 3.7 GHz vs 2.5 GHz). The Ryzen 9 5900X uses the Vermeer (Zen3) (2020−2022) architecture (7 nm, 12 nm), while the Xeon E5-2679 v4 uses Broadwell (2015−2019) (14 nm). In PassMark, the Ryzen 9 5900X scores 38,955 against the Xeon E5-2679 v4's 24,131 — a 47% lead for the Ryzen 9 5900X. Geekbench 6 single-core — the metric most relevant to gaming — records 2,174 vs 1,000, a 74% lead for the Ryzen 9 5900X that directly translates to higher frame rates. Multi-core Geekbench: 11,888 vs 12,000 (0.9% advantage for the Xeon E5-2679 v4). L3 cache: 64 MB on the Ryzen 9 5900X vs 50 MB on the Xeon E5-2679 v4.

FeatureRyzen 9 5900XXeon E5-2679 v4
Cores / Threads
12 / 24
20 / 40+67%
Boost Clock
4.8 GHz+45%
3.3 GHz
Base Clock
3.7 GHz+48%
2.5 GHz
L3 Cache
64 MB+28%
50 MB
L2 Cache
512K (per core)+10140%
5 MB
Process
7 nm, 12 nm-50%
14 nm
Architecture
Vermeer (Zen3) (2020−2022)
Broadwell (2015−2019)
PassMark
38,955+61%
24,131
Cinebench R23 Multi
21,000
Geekbench 6 Single
2,174+117%
1,000
Geekbench 6 Multi
11,888
12,000
🧠

Memory & Platform

The Ryzen 9 5900X uses the AM4 socket (PCIe 4.0), while the Xeon E5-2679 v4 uses LGA2011-3 (PCIe 3.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-3200 on the Ryzen 9 5900X versus DDR4-2400 on the Xeon E5-2679 v4 — the Ryzen 9 5900X supports 33.3% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Xeon E5-2679 v4 supports up to 1536 GB of RAM compared to 128 GB 1100% more capacity for professional workloads. Memory channels: 2 (Ryzen 9 5900X) vs 4 (Xeon E5-2679 v4). PCIe lanes: 24 (Ryzen 9 5900X) vs 40 (Xeon E5-2679 v4) — the Xeon E5-2679 v4 offers 16 more lanes for additional GPUs or NVMe drives. Chipset compatibility: A320,B350,X370,B450,X470,B550,X570 (Ryzen 9 5900X) and C612,X99 (Xeon E5-2679 v4).

FeatureRyzen 9 5900XXeon E5-2679 v4
Socket
AM4
LGA2011-3
PCIe Generation
PCIe 4.0+33%
PCIe 3.0
Max RAM Speed
DDR4-3200+33%
DDR4-2400
Max RAM Capacity
128 GB
1536 GB+1100%
RAM Channels
2
4+100%
ECC Support
Yes
Yes
PCIe Lanes
24
40+67%
🔧

Advanced Features

Virtualization support: AMD-V (Ryzen 9 5900X) vs Yes (Xeon E5-2679 v4). Primary use case: Ryzen 9 5900X targets Workstation. Direct competitor: Ryzen 9 5900X rivals Core i9-12900K.

FeatureRyzen 9 5900XXeon E5-2679 v4
Integrated GPU
No
No
Unlocked
Yes
AVX-512
No
No
Virtualization
AMD-V
Yes
Target Use
Workstation
💰

Value Analysis

At launch, the Ryzen 9 5900X was priced at $549, while the Xeon E5-2679 v4 came in at $2702. On launch pricing ($549 vs $2702), Ryzen 9 5900X was $2153 cheaper. In terms of value on MSRP (PassMark points per dollar), the Ryzen 9 5900X delivers 71.0 pts/$ vs 8.9 pts/$ for the Xeon E5-2679 v4 — making the Ryzen 9 5900X the 155.3% better value option.

FeatureRyzen 9 5900XXeon E5-2679 v4
MSRP
$549-80%
$2702
Performance per Dollar
71.0+698%
8.9
Release Date
2020
2016

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