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 i3-1305U vs Xeon W-2123 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 i3-1305U vs Xeon W-2123: Pros, Cons & Final Verdict

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

Core i3-1305U

2023

Why buy it

✅+67.2% higher Geekbench single-core performance for gaming and desktop responsiveness.
✅+21.2% larger total L3 cache (10 MB vs 8.3 MB).
✅Draws 15W instead of 120W, a 105W reduction.
✅Newer platform on FCBGA1744 with DDR5 support instead of LGA2066 and DDR4.
✅Integrated graphics onboard with Intel UHD Graphics, while Xeon W-2123 needs a discrete GPU.

Trade-offs

❌Lower Geekbench multi-core (1,900 vs 4,215).
❌Less compelling for workstation-style loads than Xeon W-2123, which brings 4 cores / 8 threads and 48 PCIe lanes.
❌No AVX-512 support for niche heavy compute workloads where it can matter.

Xeon W-2123

2017

Why buy it

✅+121.8% higher Geekbench multi-core.
✅Better for workstations and heavier parallel workloads: 4 cores / 8 threads, plus 48 PCIe lanes vs 20.
✅140% more PCIe lanes (48 vs 20) for storage and expansion-heavy builds.

Trade-offs

❌Lower Geekbench single-core performance for gaming (1,172 vs 1,960).
❌Smaller total L3 cache (8.3 MB vs 10 MB).
❌Launch MSRP is still $294 MSRP, while Core i3-1305U mostly shows up through inconsistent older-market listings.
❌700% higher power demand at 120W vs 15W.
❌Older platform position on LGA2066 with DDR4, while Core i3-1305U moves to FCBGA1744 and DDR5.

Quick Answers

So, is Core i3-1305U better than Xeon W-2123?

Not really, because they are built for different jobs. Xeon W-2123 makes more sense for workstation-style multi-core throughput, while Core i3-1305U 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, Xeon W-2123 is the stronger fit. You are getting 121.8% better Geekbench multi-core, backed by 4 cores and 8 threads.

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

Core i3-1305U is still the faster CPU overall, but Xeon W-2123 is easier to justify if budget matters more than peak performance. Core i3-1305U comes in at an unclear MSRP at unclear MSRP versus $294 MSRP, and it still gives you a 2.7% average FPS lead across 50 shared CPU game tests in our data. The compromise is that Xeon W-2123 is still stronger for heavier multi-core work with 121.8% better Geekbench multi-core. Xeon W-2123 is also 100.0% better value on MSRP (29.0 vs 0.0 PassMark/$), which is why it can still make sense for tighter-budget builds on paper.

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

Core i3-1305U makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2023 vs 2017), a healthier platform with FCBGA1744 and DDR5 instead of LGA2066, and 21.2% larger total L3 cache (10 MB vs 8.3 MB). That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

Core i3-1305U vs Xeon W-2123 Technical Specifications

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

Core i3-1305U

The Core i3-1305U is manufactured by Intel. It was released in 4 January 2023 (2 years ago). It is based on the Raptor Lake-U (2023) architecture. It features 5 cores and 6 threads. Base frequency is 1.6 GHz, with boost up to 4.5 GHz. L3 cache: 10 MB (total). L2 cache: 1.25 MB (per core). Built on Intel 7 nm process technology. Socket: FCBGA1744. Thermal design power (TDP): 15 Watt. Memory support: DDR5-5200, DDR4-3200, LPDDR4x-4267. Passmark benchmark score: 8,634 points. Launch price was $309.

Xeon W-2123

The Xeon W-2123 is manufactured by Intel. It was released in 29 August 2017 (8 years ago). It is based on the Skylake (server) (2017−2018) architecture. It features 4 cores and 8 threads. Base frequency is 3.6 GHz, with boost up to 3.9 GHz. L3 cache: 8.25 MB (total). L2 cache: 1 MB (per core). Built on 14 nm process technology. Socket: LGA2066. Thermal design power (TDP): 120 Watt. Memory support: DDR4-1600, DDR4-1866, DDR4-2133, DDR4-2400, DDR4-2666. Passmark benchmark score: 8,519 points. Launch price was $294.

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Processing Power

The Core i3-1305U packs 5 cores / 6 threads, while the Xeon W-2123 offers 4 cores / 8 threads — the Core i3-1305U has 1 more core. Boost clocks reach 4.5 GHz on the Core i3-1305U versus 3.9 GHz on the Xeon W-2123 — a 14.3% clock advantage for the Core i3-1305U (base: 1.6 GHz vs 3.6 GHz). The Core i3-1305U uses the Raptor Lake-U (2023) architecture (Intel 7 nm), while the Xeon W-2123 uses Skylake (server) (2017−2018) (14 nm). In PassMark, the Core i3-1305U scores 8,634 against the Xeon W-2123's 8,519 — a 1.3% lead for the Core i3-1305U. Geekbench 6 single-core — the metric most relevant to gaming — records 1,960 vs 1,172, a 50.3% lead for the Core i3-1305U that directly translates to higher frame rates. Multi-core Geekbench: 1,900 vs 4,215 (75.7% advantage for the Xeon W-2123). L3 cache: 10 MB (total) on the Core i3-1305U vs 8.25 MB (total) on the Xeon W-2123.

Feature	Core i3-1305U	Xeon W-2123
Cores / Threads	5 / 6+25%	4 / 8
Boost Clock	4.5 GHz+15%	3.9 GHz
Base Clock	1.6 GHz	3.6 GHz+125%
L3 Cache	10 MB (total)+21%	8.25 MB (total)
L2 Cache	1.25 MB (per core)+25%	1 MB (per core)
Process	Intel 7 nm-50%	14 nm
Architecture	Raptor Lake-U (2023)	Skylake (server) (2017−2018)
PassMark	8,634+1%	8,519
Cinebench R23 Multi	4,388	—
Geekbench 6 Single	1,960+67%	1,172
Geekbench 6 Multi	1,900	4,215+122%

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Memory & Platform

The Core i3-1305U uses the FCBGA1744 socket (PCIe 5.0), while the Xeon W-2123 uses LGA2066 (PCIe 3.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR5-5200 on the Core i3-1305U versus DDR4-2666 on the Xeon W-2123 — the Core i3-1305U supports 95% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Xeon W-2123 supports up to 512 GB of RAM compared to 96 GB — 433.3% more capacity for professional workloads. Memory channels: 2 (Core i3-1305U) vs 4 (Xeon W-2123). PCIe lanes: 20 (Core i3-1305U) vs 48 (Xeon W-2123) — the Xeon W-2123 offers 28 more lanes for additional GPUs or NVMe drives. Chipset compatibility: Raptor Lake-U (Core i3-1305U) and C422 (Xeon W-2123).

Feature	Core i3-1305U	Xeon W-2123
Socket	FCBGA1744	LGA2066
PCIe Generation	PCIe 5.0+67%	PCIe 3.0
Max RAM Speed	DDR5-5200+95%	DDR4-2666
Max RAM Capacity	96 GB	512 GB+433%
RAM Channels	2	4+100%
ECC Support	No	Yes
PCIe Lanes	20	48+140%

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Advanced Features

Only the Xeon W-2123 supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: VT-x, VT-d (Core i3-1305U) vs Yes (Xeon W-2123). The Core i3-1305U includes integrated graphics (Intel UHD Graphics), while the Xeon W-2123 requires a dedicated GPU. Primary use case: Core i3-1305U targets Budget Laptop.