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.

Core i9-13900KS

2023

Why buy it

✅+121.6% higher Cinebench R23 multi-core.
✅Delivers 13.4% more PassMark for each dollar spent, at 86.6 vs 76.4 PassMark/$ ($699 MSRP vs $449 MSRP).

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 7 7800X3D across 8 shared CPU benchmark tests.
❌
55.7% HIGHER MSRP
$699 MSRPvs$449 MSRP
❌25% higher power demand at 150W vs 120W.

Ryzen 7 7800X3D

2023

Why buy it

✅Better for gaming: +10.9% higher average FPS across 8 shared CPU benchmark tests.
✅Costs $250 less on MSRP ($449 MSRP vs $699 MSRP).
✅Draws 120W instead of 150W, a 30W reduction.
✅40% more PCIe lanes (28 vs 20) for storage and expansion-heavy builds.

Trade-offs

❌Lower Cinebench R23 multi-core (18,500 vs 40,998).
❌Lower PassMark per dollar, at 76.4 vs 86.6 PassMark/$ ($449 MSRP vs $699 MSRP).

Core i9-13900KS

2023

Ryzen 7 7800X3D

2023

Why buy it

✅+121.6% higher Cinebench R23 multi-core.
✅Delivers 13.4% more PassMark for each dollar spent, at 86.6 vs 76.4 PassMark/$ ($699 MSRP vs $449 MSRP).

Why buy it

✅Better for gaming: +10.9% higher average FPS across 8 shared CPU benchmark tests.
✅Costs $250 less on MSRP ($449 MSRP vs $699 MSRP).
✅Draws 120W instead of 150W, a 30W reduction.
✅40% more PCIe lanes (28 vs 20) for storage and expansion-heavy builds.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 7 7800X3D across 8 shared CPU benchmark tests.
❌
55.7% HIGHER MSRP
$699 MSRPvs$449 MSRP
❌25% higher power demand at 150W vs 120W.

Trade-offs

❌Lower Cinebench R23 multi-core (18,500 vs 40,998).
❌Lower PassMark per dollar, at 76.4 vs 86.6 PassMark/$ ($449 MSRP vs $699 MSRP).

Quick Answers

So, is Core i9-13900KS better than Ryzen 7 7800X3D?

It depends on what matters more to you. For gaming, Ryzen 7 7800X3D is ahead with a 10.9% average FPS lead across 8 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Core i9-13900KS pulls ahead with 121.6% better Cinebench R23 multi-core. Ryzen 7 7800X3D also has the bigger cache pool with 166.7% larger total L3 cache (96 MB vs 36 MB).

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

For streaming, content creation, and heavier multitasking, Core i9-13900KS is the better fit. You are getting 121.6% better Cinebench R23 multi-core, backed by 24 cores and 32 threads.

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

Core i9-13900KS is the smarter buy today. Core i9-13900KS is 55.7% more expensive on MSRP at $699 MSRP versus $449 MSRP, and it gives you 121.6% better Cinebench R23 multi-core. The trade-off is that Ryzen 7 7800X3D is still the better pure gaming CPU with a 10.9% average FPS lead across 8 shared CPU game tests in our data. It is also 13.4% better value on MSRP (86.6 vs 76.4 PassMark/$), so the better CPU is not just faster, it is also the cleaner value play on paper. That said, if you already own a compatible AM5 + DDR5 setup, Ryzen 7 7800X3D is still an elite gaming CPU and a very strong platform-matched choice because it avoids a motherboard and RAM swap while remaining one of the strongest gaming chips you can buy.

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

Ryzen 7 7800X3D is the more future-proof choice for 2026 and beyond. You are getting 3D V-Cache and a much larger 96 MB L3 cache instead of 36 MB. 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.

Core i9-13900KS Benchmark Check

Ryzen 7 7800X3D Benchmark Check

Path of Exile 2

Preset	Core i9-13900KS	Ryzen 7 7800X3D
1080p
low	325 FPS	266 FPS
medium	314 FPS	247 FPS
high	246 FPS	211 FPS
ultra	207 FPS	186 FPS
1440p
low	281 FPS	258 FPS
medium	241 FPS	215 FPS
high	177 FPS	171 FPS
ultra	156 FPS	154 FPS
4K
low	194 FPS	179 FPS
medium	165 FPS	149 FPS
high	122 FPS	112 FPS
ultra	110 FPS	100 FPS

Open Core i9-13900KS Open Ryzen 7 7800X3D

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	Core i9-13900KS	Ryzen 7 7800X3D
1080p
low	792 FPS	857 FPS
medium	688 FPS	737 FPS
high	550 FPS	580 FPS
ultra	488 FPS	493 FPS
1440p
low	664 FPS	722 FPS
medium	597 FPS	611 FPS
high	490 FPS	500 FPS
ultra	400 FPS	398 FPS
4K
low	369 FPS	396 FPS
medium	336 FPS	339 FPS
high	312 FPS	315 FPS
ultra	275 FPS	273 FPS

Open Core i9-13900KS Open Ryzen 7 7800X3D

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	Core i9-13900KS	Ryzen 7 7800X3D
1080p
low	794 FPS	857 FPS
medium	660 FPS	857 FPS
high	572 FPS	857 FPS
ultra	493 FPS	857 FPS
1440p
low	711 FPS	857 FPS
medium	599 FPS	851 FPS
high	512 FPS	786 FPS
ultra	450 FPS	656 FPS
4K
low	522 FPS	558 FPS
medium	463 FPS	479 FPS
high	412 FPS	427 FPS
ultra	352 FPS	362 FPS

Open Core i9-13900KS Open Ryzen 7 7800X3D

League of Legends

League of Legends

Valorant

Preset	Core i9-13900KS	Ryzen 7 7800X3D
1080p
low	1091 FPS	857 FPS
medium	975 FPS	857 FPS
high	853 FPS	857 FPS
ultra	760 FPS	782 FPS
1440p
low	900 FPS	857 FPS
medium	791 FPS	760 FPS
high	690 FPS	669 FPS
ultra	607 FPS	576 FPS
4K
low	662 FPS	618 FPS
medium	592 FPS	556 FPS
high	523 FPS	495 FPS
ultra	437 FPS	428 FPS

Open Core i9-13900KS Open Ryzen 7 7800X3D

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Core i9-13900KS and Ryzen 7 7800X3D

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 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 Core i9-13900KS packs 24 cores / 32 threads, while the Ryzen 7 7800X3D offers 8 cores / 16 threads — the Core i9-13900KS has 16 more cores. Boost clocks reach 5.8 GHz on the Core i9-13900KS versus 5 GHz on the Ryzen 7 7800X3D — a 14.8% clock advantage for the Core i9-13900KS (base: 3.2 GHz vs 4.4 GHz). The Core i9-13900KS uses the Raptor Lake-S (2023−2024) architecture (Intel 7 nm), while the Ryzen 7 7800X3D uses Raphael (Zen4) (2022−2023) (5 nm). In PassMark, the Core i9-13900KS scores 60,543 against the Ryzen 7 7800X3D's 34,293 — a 55.4% lead for the Core i9-13900KS. Cinebench R23 multi-core: 40,998 vs 18,500 (75.6% advantage for the Core i9-13900KS). Geekbench 6 single-core — the metric most relevant to gaming — records 3,123 vs 2,700, a 14.5% lead for the Core i9-13900KS that directly translates to higher frame rates. Multi-core Geekbench: 21,421 vs 15,000 (35.3% advantage for the Core i9-13900KS). L3 cache: 36 MB (total) on the Core i9-13900KS vs 96 MB (total) on the Ryzen 7 7800X3D.

Feature	Core i9-13900KS	Ryzen 7 7800X3D
Cores / Threads	24 / 32+200%	8 / 16
Boost Clock	5.8 GHz+16%	5 GHz
Base Clock	3.2 GHz	4.4 GHz+38%
L3 Cache	36 MB (total)	96 MB (total)+167%
L2 Cache	2 MB (per core)+100%	1 MB (per core)
Process	Intel 7 nm	5 nm-29%
Architecture	Raptor Lake-S (2023−2024)	Raphael (Zen4) (2022−2023)
PassMark	60,543+77%	34,293
Cinebench R23 Multi	40,998+122%	18,500
Geekbench 6 Single	3,123+16%	2,700
Geekbench 6 Multi	21,421+43%	15,000

🧠

Memory & Platform

The Core i9-13900KS uses the LGA1700 socket (PCIe 5.0), while the Ryzen 7 7800X3D uses AM5 (PCIe 5.0) — making them incompatible on the same motherboard. Both support up to DDR5-5600 memory speed. The Core i9-13900KS supports up to 192 GB of RAM compared to 128 GB — 40% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 20 (Core i9-13900KS) vs 28 (Ryzen 7 7800X3D) — the Ryzen 7 7800X3D offers 8 more lanes for additional GPUs or NVMe drives. Chipset compatibility: Z790,B760 (Core i9-13900KS) and X670E,X670,B650E,B650,A620 (Ryzen 7 7800X3D).

Feature	Core i9-13900KS	Ryzen 7 7800X3D
Socket	LGA1700	AM5
PCIe Generation	PCIe 5.0	PCIe 5.0
Max RAM Speed	DDR5-5600	DDR5-5200
Max RAM Capacity	192 GB+50%	128 GB
RAM Channels	2	2
ECC Support	Yes	Yes
PCIe Lanes	20	28+40%

🔧

Advanced Features

Both processors feature an unlocked multiplier for overclocking. Only the Ryzen 7 7800X3D supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: true (Core i9-13900KS) vs AMD-V (Ryzen 7 7800X3D). Both include integrated graphics — Intel UHD Graphics 770 (Core i9-13900KS) and AMD Radeon Graphics (2-core) (Ryzen 7 7800X3D) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Ryzen 7 7800X3D targets Gaming. Direct competitor: Core i9-13900KS rivals Ryzen 9 7950X; Ryzen 7 7800X3D rivals Intel Core i7-14700K.

Feature	Core i9-13900KS	Ryzen 7 7800X3D
Integrated GPU	Yes	Yes
IGPU Model	Intel UHD Graphics 770	AMD Radeon Graphics (2-core)
Unlocked	Yes	Yes
AVX-512	No	Yes
Virtualization	true	AMD-V
Target Use	—	Gaming

💰

Value Analysis

The Core i9-13900KS launched at $699 MSRP, while the Ryzen 7 7800X3D debuted at $449. On MSRP ($699 vs $449), the Ryzen 7 7800X3D is $250 cheaper. In terms of value on MSRP (PassMark points per dollar), the Core i9-13900KS delivers 86.6 pts/$ vs 76.4 pts/$ for the Ryzen 7 7800X3D — making the Core i9-13900KS the 12.6% better value option.