Xeon E3-1585 v5 vs Xeon W-2123

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.

Xeon E3-1585 v5 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.

Xeon E3-1585 v5 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.

Xeon E3-1585 v5

2016

Why buy it

✅Draws 65W instead of 120W, a 55W reduction.

Trade-offs

❌Lower PassMark (8,408 vs 8,519).
❌No AVX-512 support for niche heavy compute workloads where it can matter.

Xeon W-2123

2017

Why buy it

✅+1.3% higher PassMark.
✅100+% more PCIe lanes (48 vs 0) for storage and expansion-heavy builds.
✅AVX-512 support for select workstation, AI, and scientific workloads.

Trade-offs

❌Launch MSRP is still $294 MSRP, while Xeon E3-1585 v5 mostly shows up through inconsistent older-market listings.
❌84.6% higher power demand at 120W vs 65W.

Quick Answers

So, is Xeon W-2123 better than Xeon E3-1585 v5?

Yes. Xeon W-2123 is the better all-around CPU here. It gives you a 0.2% average FPS lead across 50 shared CPU game tests in our data, 1.3% better PassMark, and the stronger long-term platform, which is enough to make it the stronger overall pick.

Which one is better for gaming?

For gaming, this matchup is basically a tie in the data we have.

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 1.3% better PassMark, backed by 4 cores and 8 threads.

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

Xeon W-2123 is the better buy right now. Xeon W-2123 comes in at an unclear MSRP at $294 MSRP versus unclear MSRP, and it still gives you a 0.2% average FPS lead across 50 shared CPU game tests in our data. It is also 100.0% better value on MSRP (29.0 vs 0.0 PassMark/$), so you are getting the faster CPU without taking a value hit on paper.

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

Xeon W-2123 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2017 vs 2016), more multi-core headroom with 4 cores / 8 threads instead of 4/8, and AVX-512 support for heavier modern compute workloads. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

Xeon E3-1585 v5 vs Xeon W-2123 Technical Specifications

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

Xeon E3-1585 v5

The Xeon E3-1585 v5 is manufactured by Intel. It was released in 31 May 2016 (9 years ago). It is based on the Skylake-H (2015−2016) architecture. It features 4 cores and 8 threads. Base frequency is 3.5 GHz, with boost up to 3.9 GHz. L3 cache: 8 MB (total). L2 cache: 256 kB (per core). Built on 14 nm process technology. Socket: BGA1440. Thermal design power (TDP): 65 Watt. Memory support: DDR3L,LPDDR3 1600 MHz, DDR4 2133 MHz at 1.2V. Passmark benchmark score: 8,408 points. Launch price was $556.

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

Both the Xeon E3-1585 v5 and Xeon W-2123 share an identical 4-core/8-thread configuration. Boost clocks reach 3.9 GHz on the Xeon E3-1585 v5 versus 3.9 GHz on the Xeon W-2123 — identical boost frequencies (base: 3.5 GHz vs 3.6 GHz). The Xeon E3-1585 v5 uses the Skylake-H (2015−2016) architecture (14 nm), while the Xeon W-2123 uses Skylake (server) (2017−2018) (14 nm). In PassMark, the Xeon E3-1585 v5 scores 8,408 against the Xeon W-2123's 8,519 — a 1.3% lead for the Xeon W-2123. L3 cache: 8 MB (total) on the Xeon E3-1585 v5 vs 8.25 MB (total) on the Xeon W-2123.

Feature	Xeon E3-1585 v5	Xeon W-2123
Cores / Threads	4 / 8	4 / 8
Boost Clock	3.9 GHz	3.9 GHz
Base Clock	3.5 GHz	3.6 GHz+3%
L3 Cache	8 MB (total)	8.25 MB (total)+3%
L2 Cache	256 kB (per core)	1 MB (per core)+300%
Process	14 nm	14 nm
Architecture	Skylake-H (2015−2016)	Skylake (server) (2017−2018)
PassMark	8,408	8,519+1%
Geekbench 6 Single	—	1,172
Geekbench 6 Multi	—	4,215

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Memory & Platform

The Xeon E3-1585 v5 uses the BGA1440 socket (PCIe 5.0), while the Xeon W-2123 uses LGA2066 (PCIe 3.0) — making them incompatible on the same motherboard.

Feature	Xeon E3-1585 v5	Xeon W-2123
Socket	BGA1440	LGA2066
PCIe Generation	PCIe 5.0+67%	PCIe 3.0
Max RAM Speed	—	DDR4-2666
Max RAM Capacity	—	512 GB
RAM Channels	—	4
ECC Support	—	Yes
PCIe Lanes	—	48