Core i9-12900T vs Ryzen 9 8945HS

Core i9-12900T vs Ryzen 9 8945HS Performance Spectrum

Core i9-12900T

16 / 24

29,601

+0.1%

29,584

0.0%

Ryzen Threadripper PRO 3975WX

Ryzen Threadripper 3990X

Ryzen Threadripper PRO 5995WX

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 i9-12900T vs Ryzen 9 8945HS 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 i9-12900T vs Ryzen 9 8945HS: Pros, Cons & Final Verdict

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

Core i9-12900T

2022

Why buy it

✅+32.6% higher Cinebench R23 multi-core.
✅+87.5% larger total L3 cache (30 MB vs 16 MB).
✅Draws 35W instead of 45W, a 10W reduction.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 9 8945HS across 50 shared CPU benchmark tests.
❌Launch MSRP is still $489 MSRP, while Ryzen 9 8945HS mostly shows up through inconsistent older-market listings.
❌No boxed cooler included, unlike Ryzen 9 8945HS.

Ryzen 9 8945HS

2023

Why buy it

✅Better for gaming: +9.8% higher average FPS across 50 shared CPU benchmark tests.
✅Includes a boxed cooler (Laptop Integrated), unlike Core i9-12900T.

Trade-offs

❌Lower Cinebench R23 multi-core (17,200 vs 22,809).
❌Smaller total L3 cache (16 MB vs 30 MB).
❌28.6% higher power demand at 45W vs 35W.

Quick Answers

So, is Core i9-12900T better than Ryzen 9 8945HS?

It depends on what you want from the system. For gaming, Ryzen 9 8945HS is ahead with a 9.8% average FPS lead across 50 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Core i9-12900T pulls ahead with 32.6% better Cinebench R23 multi-core. Core i9-12900T also has the bigger cache pool with 87.5% larger total L3 cache (30 MB vs 16 MB).

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

For streaming, content creation, and heavier multitasking, Core i9-12900T is the stronger fit. You are getting 32.6% better Cinebench R23 multi-core, backed by 16 cores and 24 threads. It also has the larger cache pool with 87.5% larger total L3 cache (30 MB vs 16 MB).

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

Core i9-12900T is the better buy right now. Core i9-12900T comes in at an unclear MSRP at $489 MSRP versus unclear MSRP, and it still gives you 32.6% better Cinebench R23 multi-core. The compromise is that Ryzen 9 8945HS is still the better pure gaming CPU with a 9.8% average FPS lead across 50 shared CPU game tests in our data. It is also 100.0% better value on MSRP (60.5 vs 0.0 PassMark/$), 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 8945HS makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2023 vs 2022). That makes it the safer long-term bet.

Core i9-12900T vs Ryzen 9 8945HS Technical Specifications

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

Core i9-12900T

The Core i9-12900T is manufactured by Intel. It was released in 4 January 2022 (3 years ago). It is based on the Alder Lake-S (2022) architecture. It features 16 cores and 24 threads. Base frequency is 1.4 GHz, with boost up to 4.9 GHz. L3 cache: 30 MB (total). L2 cache: 1.25 MB (per core). Built on Intel 7 nm process technology. Socket: LGA1700. Thermal design power (TDP): 35 Watt. Memory support: DDR5-4800, DDR4-3200. Passmark benchmark score: 29,601 points. Launch price was $299.

Ryzen 9 8945HS

The Ryzen 9 8945HS is manufactured by AMD. It was released in 6 December 2023 (1 year ago). It is based on the Hawk Point-HS (Zen 4) (2023−2024) architecture. It features 8 cores and 16 threads. Base frequency is 4 GHz, with boost up to 5.2 GHz. L3 cache: 16 MB (total). L2 cache: 1 MB (per core). Built on 4 nm process technology. Socket: FP8. Thermal design power (TDP): 45 Watt. Memory support: DDR5. Passmark benchmark score: 29,584 points. Launch price was $299.

⚡

Processing Power

The Core i9-12900T packs 16 cores / 24 threads, while the Ryzen 9 8945HS offers 8 cores / 16 threads — the Core i9-12900T has 8 more cores. Boost clocks reach 4.9 GHz on the Core i9-12900T versus 5.2 GHz on the Ryzen 9 8945HS — a 5.9% clock advantage for the Ryzen 9 8945HS (base: 1.4 GHz vs 4 GHz). The Core i9-12900T uses the Alder Lake-S (2022) architecture (Intel 7 nm), while the Ryzen 9 8945HS uses Hawk Point-HS (Zen 4) (2023−2024) (4 nm). In PassMark, the Core i9-12900T scores 29,601 against the Ryzen 9 8945HS's 29,584 — a 0.1% lead for the Core i9-12900T. Cinebench R23 multi-core: 22,809 vs 17,200 (28% advantage for the Core i9-12900T). Geekbench 6 single-core — the metric most relevant to gaming — records 2,331 vs 2,686, a 14.2% lead for the Ryzen 9 8945HS that directly translates to higher frame rates. Multi-core Geekbench: 12,116 vs 13,283 (9.2% advantage for the Ryzen 9 8945HS). L3 cache: 30 MB (total) on the Core i9-12900T vs 16 MB (total) on the Ryzen 9 8945HS.

Feature	Core i9-12900T	Ryzen 9 8945HS
Cores / Threads	16 / 24+100%	8 / 16
Boost Clock	4.9 GHz	5.2 GHz+6%
Base Clock	1.4 GHz	4 GHz+186%
L3 Cache	30 MB (total)+88%	16 MB (total)
L2 Cache	1.25 MB (per core)+25%	1 MB (per core)
Process	Intel 7 nm	4 nm-43%
Architecture	Alder Lake-S (2022)	Hawk Point-HS (Zen 4) (2023−2024)
PassMark	29,601	29,584
Cinebench R23 Multi	22,809+33%	17,200
Geekbench 6 Single	2,331	2,686+15%
Geekbench 6 Multi	12,116	13,283+10%

🧠

Memory & Platform

The Core i9-12900T uses the LGA1700 socket (PCIe 5.0), while the Ryzen 9 8945HS uses FP8 (PCIe 4.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR5-4800 on the Core i9-12900T versus LPDDR5x-7500, DDR5-5600 on the Ryzen 9 8945HS — the Ryzen 9 8945HS supports 56.3% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Ryzen 9 8945HS supports up to 256 GB of RAM compared to 128 GB — 100% more capacity for professional workloads. Both feature 2-channel memory with ECC support. Both provide 20 PCIe lanes. Chipset compatibility: LGA1700 (Core i9-12900T) and FP7,FP8 (Ryzen 9 8945HS).

Feature	Core i9-12900T	Ryzen 9 8945HS
Socket	LGA1700	FP8
PCIe Generation	PCIe 5.0+25%	PCIe 4.0
Max RAM Speed	DDR5-4800	LPDDR5x-7500, DDR5-5600+56%
Max RAM Capacity	128 GB	256 GB+100%
RAM Channels	2	2
ECC Support	Yes	No
PCIe Lanes	20	20

🔧

Advanced Features

Only the Ryzen 9 8945HS has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Both support AVX-512 instructions, benefiting scientific computing, AI inference, and encryption workloads. Virtualization support: VT-x, VT-d (Core i9-12900T) vs AMD-V (Ryzen 9 8945HS). Both include integrated graphics — UHD Graphics 770 (Core i9-12900T) and Radeon 780M (Ryzen 9 8945HS) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Ryzen 9 8945HS targets Premium Performance Laptop. Direct competitor: Ryzen 9 8945HS rivals Core Ultra 9 185H.

Feature	Core i9-12900T	Ryzen 9 8945HS
Integrated GPU	Yes	Yes
IGPU Model	UHD Graphics 770	Radeon 780M
Unlocked	No	Yes
AVX-512	Yes	Yes
Virtualization	VT-x, VT-d	AMD-V
Target Use	—	Premium Performance Laptop