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 i9-9980XE vs Core i9-12900T 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 i9-9980XE vs Core i9-12900T: Pros, Cons & Final Verdict

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

Core i9-9980XE

2018

Why buy it

✅120% more PCIe lanes (44 vs 20) for storage and expansion-heavy builds.

Trade-offs

❌Worse for gaming: lower average FPS than Core i9-12900T across 50 shared CPU benchmark tests.
❌Lower Cinebench R23 multi-core (22,000 vs 22,809).
❌Smaller total L3 cache (25 MB vs 30 MB).
❌Lower PassMark per dollar, at 14.7 vs 60.5 PassMark/$ ($1,979 MSRP vs $489 MSRP).
❌371.4% higher power demand at 165W vs 35W.

Core i9-12900T

2022

Why buy it

✅Better for gaming: +11.4% higher average FPS across 50 shared CPU benchmark tests.
✅+21.2% larger total L3 cache (30 MB vs 25 MB).
✅Costs $1,490 less on MSRP ($489 MSRP vs $1,979 MSRP).
✅Delivers 311.3% more PassMark for each dollar spent, at 60.5 vs 14.7 PassMark/$ ($489 MSRP vs $1,979 MSRP).
✅Draws 35W instead of 165W, a 130W reduction.

Trade-offs

❌Fewer obvious downsides in this matchup outside of normal market pricing swings.

Quick Answers

So, is Core i9-12900T better than Core i9-9980XE?

Yes. Core i9-12900T is the better all-around CPU here. It gives you a 11.4% average FPS lead across 50 shared CPU game tests in our data, 3.7% better Cinebench R23 multi-core, 1.6% higher PassMark, and the stronger long-term platform, which is enough to make it the stronger overall pick.

Which one is better for gaming?

If gaming is the priority, Core i9-12900T is the better pick. According to our tests, it delivers 11.4% more average FPS across 50 shared CPU game tests.

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 3.7% better Cinebench R23 multi-core, backed by 16 cores and 24 threads. It also has the larger cache pool with 21.2% larger total L3 cache (30 MB vs 25 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 $1,490 cheaper on MSRP at $489 MSRP versus $1,979 MSRP, and it still gives you a 11.4% average FPS lead across 50 shared CPU game tests in our data. It is also 311.3% better value on MSRP (60.5 vs 14.7 PassMark/$), 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 i9-12900T makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2022 vs 2018), a healthier platform with LGA1700 and DDR5 instead of LGA2066, 21.2% larger total L3 cache (30 MB vs 25 MB), and more multi-core headroom with 16 cores / 24 threads instead of 18/36. That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

Core i9-9980XE vs Core i9-12900T Technical Specifications

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

Core i9-9980XE

The Core i9-9980XE is manufactured by Intel. It was released in 19 October 2018 (7 years ago). It is based on the Skylake (server) (2017−2018) architecture. It features 18 cores and 36 threads. Base frequency is 3 GHz, with boost up to 4.5 GHz. L3 cache: 24.75 MB (total). L2 cache: 1 MB (per core). Built on 14 nm process technology. Socket: LGA2066. Thermal design power (TDP): 165 Watt. Memory support: DDR4. Passmark benchmark score: 29,127 points. Launch price was $1,979.

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.

⚡

Processing Power

The Core i9-9980XE packs 18 cores / 36 threads, while the Core i9-12900T offers 16 cores / 24 threads — the Core i9-9980XE has 2 more cores. Boost clocks reach 4.5 GHz on the Core i9-9980XE versus 4.9 GHz on the Core i9-12900T — a 8.5% clock advantage for the Core i9-12900T (base: 3 GHz vs 1.4 GHz). The Core i9-9980XE uses the Skylake (server) (2017−2018) architecture (14 nm), while the Core i9-12900T uses Alder Lake-S (2022) (Intel 7 nm). In PassMark, the Core i9-9980XE scores 29,127 against the Core i9-12900T's 29,601 — a 1.6% lead for the Core i9-12900T. Cinebench R23 multi-core: 22,000 vs 22,809 (3.6% advantage for the Core i9-12900T). Geekbench 6 single-core — the metric most relevant to gaming — records 1,459 vs 2,331, a 46% lead for the Core i9-12900T that directly translates to higher frame rates. Multi-core Geekbench: 12,177 vs 12,116 (0.5% advantage for the Core i9-9980XE). L3 cache: 24.75 MB (total) on the Core i9-9980XE vs 30 MB (total) on the Core i9-12900T.

Feature	Core i9-9980XE	Core i9-12900T
Cores / Threads	18 / 36+13%	16 / 24
Boost Clock	4.5 GHz	4.9 GHz+9%
Base Clock	3 GHz+114%	1.4 GHz
L3 Cache	24.75 MB (total)	30 MB (total)+21%
L2 Cache	1 MB (per core)	1.25 MB (per core)+25%
Process	14 nm	Intel 7 nm-50%
Architecture	Skylake (server) (2017−2018)	Alder Lake-S (2022)
PassMark	29,127	29,601+2%
Cinebench R23 Multi	22,000	22,809+4%
Geekbench 6 Single	1,459	2,331+60%
Geekbench 6 Multi	12,177	12,116

🧠

Memory & Platform

The Core i9-9980XE uses the LGA2066 socket (PCIe 3.0), while the Core i9-12900T uses LGA1700 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-2666 on the Core i9-9980XE versus DDR5-4800 on the Core i9-12900T — the Core i9-12900T supports 80% faster memory, which can translate to measurable gains in memory-sensitive workloads. Both support up to 128 GB of RAM. Memory channels: 4 (Core i9-9980XE) vs 2 (Core i9-12900T). PCIe lanes: 44 (Core i9-9980XE) vs 20 (Core i9-12900T) — the Core i9-9980XE offers 24 more lanes for additional GPUs or NVMe drives. Chipset compatibility: X299 (Core i9-9980XE) and LGA1700 (Core i9-12900T).

Feature	Core i9-9980XE	Core i9-12900T
Socket	LGA2066	LGA1700
PCIe Generation	PCIe 3.0	PCIe 5.0+67%
Max RAM Speed	DDR4-2666	DDR5-4800+80%
Max RAM Capacity	128 GB	128 GB
RAM Channels	4+100%	2
ECC Support	No	Yes
PCIe Lanes	44+120%	20

🔧

Advanced Features

Only the Core i9-9980XE 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. Both support VT-x, VT-d virtualization. The Core i9-12900T includes integrated graphics (UHD Graphics 770), while the Core i9-9980XE requires a dedicated GPU. Primary use case: Core i9-9980XE targets HEDT / Workstation / Content Creation. Direct competitor: Core i9-9980XE rivals Ryzen Threadripper 2950X.

Feature	Core i9-9980XE	Core i9-12900T
Integrated GPU	No	Yes
IGPU Model	—	UHD Graphics 770
Unlocked	Yes	No
AVX-512	Yes	Yes
Virtualization	VT-x, VT-d	VT-x, VT-d
Target Use	HEDT / Workstation / Content Creation	—

💰

Value Analysis

At launch, the Core i9-9980XE was priced at $1979, while the Core i9-12900T came in at $489. On launch pricing ($1979 vs $489), Core i9-12900T was $1490 cheaper. In terms of value on MSRP (PassMark points per dollar), the Core i9-9980XE delivers 14.7 pts/$ vs 60.5 pts/$ for the Core i9-12900T — making the Core i9-12900T the 121.8% better value option.

Feature	Core i9-9980XE	Core i9-12900T
MSRP	$1979	$489-75%
Performance per Dollar	14.7	60.5+312%
Release Date	2018	2022

Search Core i9-9980XE on Amazon

Search Core i9-12900T on Amazon

Affiliate Disclosure

ChipVERSUS is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. We may earn a commission on qualifying purchases made through our links. This comes at no additional cost to you and helps support our work in providing comprehensive PC building guides and tools.

Amazon and the Amazon logo are trademarks of Amazon.com, Inc. or its affiliates.