Core i9-13900KS vs Ryzen Threadripper PRO 3975WX

CPU

GPU

Core i9-13900KS

24 Cores32 Thrd150 WWMax: 5.8 GHz2023

Core family

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Ryzen Threadripper PRO 3975WX

32 Cores64 Thrd280 WWMax: 4.2 GHz2020

Threadripper Pro family

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Core i9-13900KS vs Ryzen Threadripper PRO 3975WX Performance Spectrum

Core i9-13900KS

24 / 32

60,543

0.0%

Ryzen Threadripper PRO 3975WX

32 / 64

62,261

+2.8%

Ryzen 7 PRO 7745

Ryzen Threadripper PRO 5945WX

Ryzen 9 7900

Ryzen AI Max+ 395

Ryzen Threadripper PRO 5975WX

Ryzen Threadripper 9960X

Ryzen Threadripper PRO 9975WX

Ryzen Threadripper PRO 7985WX

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 i9-13900KS vs Ryzen Threadripper PRO 3975WX 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 i9-13900KS vs Ryzen Threadripper PRO 3975WX: Pros, Cons & Final Verdict

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

Core i9-13900KS

2023

Why buy it

✅Better for gaming: +9.7% higher average FPS across 50 shared CPU benchmark tests.
✅Costs $638 less on MSRP ($699 MSRP vs $1,337 MSRP).
✅Delivers 86.0% more PassMark for each dollar spent, at 86.6 vs 46.6 PassMark/$ ($699 MSRP vs $1,337 MSRP).
✅Draws 150W instead of 280W, a 130W reduction.
✅Newer platform on LGA1700 with DDR5 support instead of sWRX8 and DDR4.

Trade-offs

❌Lower Cinebench R23 multi-core (40,998 vs 42,986).
❌Smaller total L3 cache (36 MB vs 128 MB).
❌Less compelling for workstation-style loads than Ryzen Threadripper PRO 3975WX, which brings 32 cores / 64 threads and 128 PCIe lanes.

Ryzen Threadripper PRO 3975WX

2020

Why buy it

✅+4.8% higher Cinebench R23 multi-core.
✅+255.6% larger total L3 cache (128 MB vs 36 MB).
✅Better for workstations and heavier parallel workloads: 32 cores / 64 threads, plus 128 PCIe lanes vs 20.
✅540% more PCIe lanes (128 vs 20) for storage and expansion-heavy builds.

Trade-offs

❌Worse for gaming: lower average FPS than Core i9-13900KS across 50 shared CPU benchmark tests.
❌Lower PassMark per dollar, at 46.6 vs 86.6 PassMark/$ ($1,337 MSRP vs $699 MSRP).
❌86.7% higher power demand at 280W vs 150W.
❌Older platform position on sWRX8 with DDR4, while Core i9-13900KS moves to LGA1700 and DDR5.
❌No integrated graphics, while Core i9-13900KS can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Core i9-13900KS better than Ryzen Threadripper PRO 3975WX?

Not really, because they are built for different jobs. Ryzen Threadripper PRO 3975WX makes more sense for workstation-style multi-core throughput, while Core i9-13900KS 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, Ryzen Threadripper PRO 3975WX is the stronger fit. You are getting 4.8% better Cinebench R23 multi-core, backed by 32 cores and 64 threads. It also has the larger cache pool with 255.6% larger total L3 cache (128 MB vs 36 MB).

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

Core i9-13900KS is the better buy right now. Core i9-13900KS comes in $638 cheaper on MSRP at $699 MSRP versus $1,337 MSRP, and it still gives you a 9.7% average FPS lead across 50 shared CPU game tests in our data. The compromise is that Ryzen Threadripper PRO 3975WX is still stronger for heavier multi-core work with 4.8% better Cinebench R23 multi-core. It is also 86.0% better value on MSRP (86.6 vs 46.6 PassMark/$), so you are getting the faster CPU without taking a value hit on paper.

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

Core i9-13900KS makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2023 vs 2020) and a healthier platform with LGA1700 and DDR5 instead of sWRX8. That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

Core i9-13900KS vs Ryzen Threadripper PRO 3975WX Technical Specifications

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

Core i9-13900KS

The Core i9-13900KS is manufactured by Intel. It was released in 12 January 2023 (2 years ago). It is based on the Raptor Lake-S (2023−2024) architecture. It features 24 cores and 32 threads. Base frequency is 3.2 GHz, with boost up to 5.8 GHz. L3 cache: 36 MB (total). L2 cache: 2 MB (per core). Built on Intel 7 nm process technology. Socket: LGA1700. Thermal design power (TDP): 150 Watt. Memory support: DDR5-5600, DDR4-3200. Passmark benchmark score: 60,543 points. Launch price was $699.

Ryzen Threadripper PRO 3975WX

The Ryzen Threadripper PRO 3975WX is manufactured by AMD. It was released in 2020-07-14. It is based on the Matisse (2019−2020) architecture. It features 32 cores and 64 threads. Base frequency is 3.5 GHz, with boost up to 4.2 GHz. L3 cache: 128 MB. L2 cache: 512K (per core). Built on 7 nm, 12 nm process technology. Socket: sWRX8. Thermal design power (TDP): 280 Watt. Memory support: DDR4-3200. Passmark benchmark score: 62,261 points. Launch price was $4,499.

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Processing Power

The Core i9-13900KS packs 24 cores / 32 threads, while the Ryzen Threadripper PRO 3975WX offers 32 cores / 64 threads — the Ryzen Threadripper PRO 3975WX has 8 more cores. Boost clocks reach 5.8 GHz on the Core i9-13900KS versus 4.2 GHz on the Ryzen Threadripper PRO 3975WX — a 32% clock advantage for the Core i9-13900KS (base: 3.2 GHz vs 3.5 GHz). The Core i9-13900KS uses the Raptor Lake-S (2023−2024) architecture (Intel 7 nm), while the Ryzen Threadripper PRO 3975WX uses Matisse (2019−2020) (7 nm, 12 nm). In PassMark, the Core i9-13900KS scores 60,543 against the Ryzen Threadripper PRO 3975WX's 62,261 — a 2.8% lead for the Ryzen Threadripper PRO 3975WX. Cinebench R23 multi-core: 40,998 vs 42,986 (4.7% advantage for the Ryzen Threadripper PRO 3975WX). Geekbench 6 single-core — the metric most relevant to gaming — records 3,123 vs 1,260, a 85% lead for the Core i9-13900KS that directly translates to higher frame rates. Multi-core Geekbench: 21,421 vs 25,211 (16.3% advantage for the Ryzen Threadripper PRO 3975WX). L3 cache: 36 MB (total) on the Core i9-13900KS vs 128 MB on the Ryzen Threadripper PRO 3975WX.

Feature	Core i9-13900KS	Ryzen Threadripper PRO 3975WX
Cores / Threads	24 / 32	32 / 64+33%
Boost Clock	5.8 GHz+38%	4.2 GHz
Base Clock	3.2 GHz	3.5 GHz+9%
L3 Cache	36 MB (total)	128 MB+256%
L2 Cache	2 MB (per core)	512K (per core)+25500%
Process	Intel 7 nm	7 nm, 12 nm
Architecture	Raptor Lake-S (2023−2024)	Matisse (2019−2020)
PassMark	60,543	62,261+3%
Cinebench R23 Multi	40,998	42,986+5%
Geekbench 6 Single	3,123+148%	1,260
Geekbench 6 Multi	21,421	25,211+18%

🧠

Memory & Platform

The Core i9-13900KS uses the LGA1700 socket (PCIe 5.0), while the Ryzen Threadripper PRO 3975WX uses sWRX8 (PCIe 4.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR5-5600 on the Core i9-13900KS versus DDR4-3200 on the Ryzen Threadripper PRO 3975WX — the Core i9-13900KS supports 75% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Ryzen Threadripper PRO 3975WX supports up to 2048 GB of RAM compared to 192 GB — 966.7% more capacity for professional workloads. Memory channels: 2 (Core i9-13900KS) vs 8 (Ryzen Threadripper PRO 3975WX). PCIe lanes: 20 (Core i9-13900KS) vs 128 (Ryzen Threadripper PRO 3975WX) — the Ryzen Threadripper PRO 3975WX offers 108 more lanes for additional GPUs or NVMe drives. Chipset compatibility: Z790,B760 (Core i9-13900KS) and AMD WRX80 (Ryzen Threadripper PRO 3975WX).

Feature	Core i9-13900KS	Ryzen Threadripper PRO 3975WX
Socket	LGA1700	sWRX8
PCIe Generation	PCIe 5.0+25%	PCIe 4.0
Max RAM Speed	DDR5-5600+75%	DDR4-3200
Max RAM Capacity	192 GB	2048 GB+967%
RAM Channels	2	8+300%
ECC Support	Yes	Yes
PCIe Lanes	20	128+540%

🔧

Advanced Features

Both processors feature an unlocked multiplier for overclocking. Both support true virtualization. The Core i9-13900KS includes integrated graphics (Intel UHD Graphics 770), while the Ryzen Threadripper PRO 3975WX requires a dedicated GPU. Direct competitor: Core i9-13900KS rivals Ryzen 9 7950X; Ryzen Threadripper PRO 3975WX rivals Xeon W-3375.

Feature	Core i9-13900KS	Ryzen Threadripper PRO 3975WX
Integrated GPU	Yes	No
IGPU Model	Intel UHD Graphics 770	None
Unlocked	Yes	Yes
AVX-512	No	No
Virtualization	true	true

💰

Value Analysis

At launch, the Core i9-13900KS was priced at $699, while the Ryzen Threadripper PRO 3975WX came in at $1337. On launch pricing ($699 vs $1337), Core i9-13900KS was $638 cheaper. In terms of value on MSRP (PassMark points per dollar), the Core i9-13900KS delivers 86.6 pts/$ vs 46.6 pts/$ for the Ryzen Threadripper PRO 3975WX — making the Core i9-13900KS the 60.1% better value option.

Feature	Core i9-13900KS	Ryzen Threadripper PRO 3975WX
MSRP	$699-48%	$1337
Performance per Dollar	86.6+86%	46.6
Release Date	2023	2020

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