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.

Ryzen 9 5900X

2020

Why buy it

✅Better for gaming: +14.1% higher average FPS across 4 shared CPU benchmark tests.
✅Costs $191 less on MSRP ($549 MSRP vs $740 MSRP).
✅Delivers 28.9% more PassMark for each dollar spent, at 71.0 vs 55.0 PassMark/$ ($549 MSRP vs $740 MSRP).
✅Draws 105W instead of 150W, a 45W reduction.

Trade-offs

❌Lower PassMark (38,955 vs 40,720).
❌Less compelling for workstation-style loads than Xeon 6515P, which brings 16 cores / 32 threads and 88 PCIe lanes.
❌Older platform position on AM4 with DDR4, while Xeon 6515P moves to LGA4710 and DDR5.

Xeon 6515P

2025

Why buy it

✅+4.5% higher PassMark.
✅Better for workstations and heavier parallel workloads: 16 cores / 32 threads, plus 88 PCIe lanes vs 24.
✅Newer platform on LGA4710 with DDR5 support instead of AM4 and DDR4.
✅266.7% more PCIe lanes (88 vs 24) for storage and expansion-heavy builds.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 9 5900X across 4 shared CPU benchmark tests.
❌Lower PassMark per dollar, at 55.0 vs 71.0 PassMark/$ ($740 MSRP vs $549 MSRP).
❌42.9% higher power demand at 150W vs 105W.

Ryzen 9 5900X

2020

Xeon 6515P

2025

Why buy it

✅Better for gaming: +14.1% higher average FPS across 4 shared CPU benchmark tests.
✅Costs $191 less on MSRP ($549 MSRP vs $740 MSRP).
✅Delivers 28.9% more PassMark for each dollar spent, at 71.0 vs 55.0 PassMark/$ ($549 MSRP vs $740 MSRP).
✅Draws 105W instead of 150W, a 45W reduction.

Why buy it

✅+4.5% higher PassMark.
✅Better for workstations and heavier parallel workloads: 16 cores / 32 threads, plus 88 PCIe lanes vs 24.
✅Newer platform on LGA4710 with DDR5 support instead of AM4 and DDR4.
✅266.7% more PCIe lanes (88 vs 24) for storage and expansion-heavy builds.

Trade-offs

❌Lower PassMark (38,955 vs 40,720).
❌Less compelling for workstation-style loads than Xeon 6515P, which brings 16 cores / 32 threads and 88 PCIe lanes.
❌Older platform position on AM4 with DDR4, while Xeon 6515P moves to LGA4710 and DDR5.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 9 5900X across 4 shared CPU benchmark tests.
❌Lower PassMark per dollar, at 55.0 vs 71.0 PassMark/$ ($740 MSRP vs $549 MSRP).
❌42.9% higher power demand at 150W vs 105W.

Quick Answers

So, is Ryzen 9 5900X better than Xeon 6515P?

Not in a simple one-size-fits-all way. Xeon 6515P makes more sense for workstation-style multi-core throughput, while Ryzen 9 5900X is the better mainstream desktop choice for gaming, platform cost, and day-to-day practicality.

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

For streaming, content creation, and heavier multitasking, Xeon 6515P is the better fit. You are getting 4.5% better PassMark, backed by 16 cores and 32 threads.

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

Ryzen 9 5900X is the smarter buy today. Ryzen 9 5900X is $191 cheaper on MSRP at $549 MSRP versus $740 MSRP, and it gives you a 14.1% average FPS lead across 4 shared CPU game tests in our data. The trade-off is that Xeon 6515P is still stronger for heavier multi-core work with 4.5% better PassMark. It is also 28.9% better value on MSRP (71.0 vs 55.0 PassMark/$), 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?

Xeon 6515P is the more future-proof choice for 2026 and beyond. You are getting a newer CPU generation (2025 vs 2020), a healthier platform with LGA4710 and DDR5 instead of AM4, more multi-core headroom with 16 cores / 32 threads instead of 12/24, and AVX-512 support for heavier modern compute workloads. That should give you a better long-term upgrade path for motherboard, RAM, and future CPU swaps.

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.

Ryzen 9 5900X Benchmark Check

Xeon 6515P Benchmark Check

Path of Exile 2

Preset	Ryzen 9 5900X	Xeon 6515P
1080p
low	323 FPS	189 FPS
medium	291 FPS	152 FPS
high	243 FPS	122 FPS
ultra	193 FPS	95 FPS
1440p
low	307 FPS	155 FPS
medium	248 FPS	121 FPS
high	192 FPS	94 FPS
ultra	157 FPS	75 FPS
4K
low	193 FPS	71 FPS
medium	156 FPS	59 FPS
high	115 FPS	46 FPS
ultra	103 FPS	38 FPS

Open Ryzen 9 5900X Open Xeon 6515P

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	Ryzen 9 5900X	Xeon 6515P
1080p
low	772 FPS	489 FPS
medium	647 FPS	424 FPS
high	508 FPS	338 FPS
ultra	450 FPS	280 FPS
1440p
low	619 FPS	412 FPS
medium	536 FPS	365 FPS
high	443 FPS	301 FPS
ultra	364 FPS	239 FPS
4K
low	365 FPS	256 FPS
medium	318 FPS	230 FPS
high	289 FPS	202 FPS
ultra	255 FPS	168 FPS

Open Ryzen 9 5900X Open Xeon 6515P

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	Ryzen 9 5900X	Xeon 6515P
1080p
low	832 FPS	940 FPS
medium	645 FPS	821 FPS
high	558 FPS	777 FPS
ultra	459 FPS	690 FPS
1440p
low	721 FPS	743 FPS
medium	565 FPS	640 FPS
high	488 FPS	606 FPS
ultra	407 FPS	539 FPS
4K
low	511 FPS	477 FPS
medium	421 FPS	376 FPS
high	374 FPS	335 FPS
ultra	308 FPS	274 FPS

Open Ryzen 9 5900X Open Xeon 6515P

League of Legends

League of Legends

Valorant

Preset	Ryzen 9 5900X	Xeon 6515P
1080p
low	974 FPS	928 FPS
medium	974 FPS	839 FPS
high	934 FPS	725 FPS
ultra	826 FPS	625 FPS
1440p
low	959 FPS	715 FPS
medium	843 FPS	629 FPS
high	726 FPS	541 FPS
ultra	617 FPS	463 FPS
4K
low	694 FPS	517 FPS
medium	621 FPS	462 FPS
high	541 FPS	406 FPS
ultra	437 FPS	351 FPS

Open Ryzen 9 5900X Open Xeon 6515P

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Ryzen 9 5900X and Xeon 6515P

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.

Xeon 6515P

The Xeon 6515P is manufactured by Intel. It was released in 24 February 2025 (less than a year ago). It is based on the Granite Rapids (2024−2025) architecture. It features 16 cores and 32 threads. Base frequency is 2.3 GHz, with boost up to 3.8 GHz. L3 cache: 72 MB (total). L2 cache: 2 MB (per core). Built on Intel 3 nm process technology. Socket: LGA4710. Thermal design power (TDP): 150 Watt. Memory support: DDR5(6400MT/s). Passmark benchmark score: 40,720 points. Launch price was $740.

⚡

Processing Power

The Ryzen 9 5900X packs 12 cores / 24 threads, while the Xeon 6515P offers 16 cores / 32 threads — the Xeon 6515P has 4 more cores. Boost clocks reach 4.8 GHz on the Ryzen 9 5900X versus 3.8 GHz on the Xeon 6515P — a 23.3% clock advantage for the Ryzen 9 5900X (base: 3.7 GHz vs 2.3 GHz). The Ryzen 9 5900X uses the Vermeer (Zen3) (2020−2022) architecture (7 nm, 12 nm), while the Xeon 6515P uses Granite Rapids (2024−2025) (Intel 3 nm). In PassMark, the Ryzen 9 5900X scores 38,955 against the Xeon 6515P's 40,720 — a 4.4% lead for the Xeon 6515P. L3 cache: 64 MB on the Ryzen 9 5900X vs 72 MB (total) on the Xeon 6515P.

Feature	Ryzen 9 5900X	Xeon 6515P
Cores / Threads	12 / 24	16 / 32+33%
Boost Clock	4.8 GHz+26%	3.8 GHz
Base Clock	3.7 GHz+61%	2.3 GHz
L3 Cache	64 MB	72 MB (total)+13%
L2 Cache	512K (per core)	2 MB (per core)+300%
Process	7 nm, 12 nm	Intel 3 nm-57%
Architecture	Vermeer (Zen3) (2020−2022)	Granite Rapids (2024−2025)
PassMark	38,955	40,720+5%
Cinebench R23 Multi	21,000	—
Geekbench 6 Single	2,174	—
Geekbench 6 Multi	11,888	—

🧠

Memory & Platform

The Ryzen 9 5900X uses the AM4 socket (PCIe 4.0), while the Xeon 6515P uses LGA4710 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-3200 on the Ryzen 9 5900X versus 6400 on the Xeon 6515P — the Xeon 6515P supports 199.8% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Xeon 6515P supports up to 4096 of RAM compared to 128 GB — 187.9% more capacity for professional workloads. Memory channels: 2 (Ryzen 9 5900X) vs 8 (Xeon 6515P). PCIe lanes: 24 (Ryzen 9 5900X) vs 88 (Xeon 6515P) — the Xeon 6515P offers 64 more lanes for additional GPUs or NVMe drives. Chipset compatibility: A320,B350,X370,B450,X470,B550,X570 (Ryzen 9 5900X) and LGA4710 (Xeon 6515P).

Feature	Ryzen 9 5900X	Xeon 6515P
Socket	AM4	LGA4710
PCIe Generation	PCIe 4.0	PCIe 5.0+25%
Max RAM Speed	DDR4-3200	6400+159900%
Max RAM Capacity	128 GB+3276700%	4096
RAM Channels	2	8+300%
ECC Support	Yes	Yes
PCIe Lanes	24	88+267%

🔧

Advanced Features

Only the Ryzen 9 5900X has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Only the Xeon 6515P supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: AMD-V (Ryzen 9 5900X) vs VT-x, VT-d (Xeon 6515P). Primary use case: Ryzen 9 5900X targets Workstation. Direct competitor: Ryzen 9 5900X rivals Core i9-12900K; Xeon 6515P rivals EPYC 9534.

Feature	Ryzen 9 5900X	Xeon 6515P
Integrated GPU	No	No
IGPU Model	—	None
Unlocked	Yes	No
AVX-512	No	Yes
Virtualization	AMD-V	VT-x, VT-d
Target Use	Workstation	—

💰

Value Analysis

The Ryzen 9 5900X launched at $549 MSRP, while the Xeon 6515P debuted at $740. On MSRP ($549 vs $740), the Ryzen 9 5900X is $191 cheaper. In terms of value on MSRP (PassMark points per dollar), the Ryzen 9 5900X delivers 71.0 pts/$ vs 55.0 pts/$ for the Xeon 6515P — making the Ryzen 9 5900X the 25.3% better value option.