Xeon E5-1681 V3 vs Xeon Silver 4215R

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 E5-1681 V3 vs Xeon Silver 4215R 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 E5-1681 V3 vs Xeon Silver 4215R: Pros, Cons & Final Verdict

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

Xeon E5-1681 V3

2014

Why buy it

✅+0.9% higher PassMark.
✅+127.3% larger total L3 cache (25 MB vs 11 MB).
✅100+% more PCIe lanes (40 vs 0) for storage and expansion-heavy builds.

Trade-offs

❌Worse for gaming: lower average FPS than Xeon Silver 4215R across 50 shared CPU benchmark tests.
❌Launch MSRP is still $1,589 MSRP, while Xeon Silver 4215R mostly shows up through inconsistent older-market listings.

Xeon Silver 4215R

2020

Why buy it

✅Better for gaming: +5.9% higher average FPS across 50 shared CPU benchmark tests.
✅Draws 130W instead of 135W, a 5W reduction.

Trade-offs

❌Lower PassMark (14,683 vs 14,820).
❌Smaller total L3 cache (11 MB vs 25 MB).

Quick Answers

So, is Xeon Silver 4215R better than Xeon E5-1681 V3?

It depends on what you want from the system. For gaming, Xeon Silver 4215R is ahead with a 5.9% average FPS lead across 50 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Xeon E5-1681 V3 pulls ahead with 0.9% better PassMark. Xeon E5-1681 V3 also has the bigger cache pool with 127.3% larger total L3 cache (25 MB vs 11 MB).

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

For streaming, content creation, and heavier multitasking, Xeon E5-1681 V3 is the stronger fit. You are getting 0.9% better PassMark, backed by 10 cores and 20 threads. It also has the larger cache pool with 127.3% larger total L3 cache (25 MB vs 11 MB).

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

Xeon Silver 4215R is still the faster CPU overall, but Xeon E5-1681 V3 is easier to justify if budget matters more than peak performance. Xeon Silver 4215R comes in at an unclear MSRP at unclear MSRP versus $1,589 MSRP, and it still gives you a 5.9% average FPS lead across 50 shared CPU game tests in our data. The compromise is that Xeon E5-1681 V3 is still stronger for heavier multi-core work with 0.9% better PassMark. Xeon E5-1681 V3 is also 100.0% better value on MSRP (9.3 vs 0.0 PassMark/$), which is why it can still make sense for tighter-budget builds on paper.

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

Xeon Silver 4215R makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2020 vs 2014). That makes it the safer long-term bet.

Xeon E5-1681 V3 vs Xeon Silver 4215R Technical Specifications

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

Xeon E5-1681 V3

The Xeon E5-1681 V3 is manufactured by Intel. It was released in 2015-01-01. It is based on the Haswell-EP (2014−2015) architecture. It features 10 cores and 20 threads. Base frequency is 2.9 GHz, with boost up to 3.5 GHz. L3 cache: 25 MB (total). L2 cache: 256K (per core). Built on 22 nm process technology. Socket: LGA2011-3. Thermal design power (TDP): 135 Watt. Memory support: DDR4-2133. Passmark benchmark score: 14,820 points. Launch price was $800.

Xeon Silver 4215R

The Xeon Silver 4215R is manufactured by Intel. It was released in 24 February 2020 (5 years ago). It is based on the Cascade Lake (2019−2020) architecture. It features 8 cores and 16 threads. Base frequency is 3.2 GHz, with boost up to 4 GHz. L3 cache: 11 MB. L2 cache: 8 MB. Built on 14 nm process technology. Socket: LGA3647. Thermal design power (TDP): 130 Watt. Memory support: DDR4-2400. Passmark benchmark score: 14,683 points. Launch price was $794.

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Processing Power

The Xeon E5-1681 V3 packs 10 cores / 20 threads, while the Xeon Silver 4215R offers 8 cores / 16 threads — the Xeon E5-1681 V3 has 2 more cores. Boost clocks reach 3.5 GHz on the Xeon E5-1681 V3 versus 4 GHz on the Xeon Silver 4215R — a 13.3% clock advantage for the Xeon Silver 4215R (base: 2.9 GHz vs 3.2 GHz). The Xeon E5-1681 V3 uses the Haswell-EP (2014−2015) architecture (22 nm), while the Xeon Silver 4215R uses Cascade Lake (2019−2020) (14 nm). In PassMark, the Xeon E5-1681 V3 scores 14,820 against the Xeon Silver 4215R's 14,683 — a 0.9% lead for the Xeon E5-1681 V3. L3 cache: 25 MB (total) on the Xeon E5-1681 V3 vs 11 MB on the Xeon Silver 4215R.

Feature	Xeon E5-1681 V3	Xeon Silver 4215R
Cores / Threads	10 / 20+25%	8 / 16
Boost Clock	3.5 GHz	4 GHz+14%
Base Clock	2.9 GHz	3.2 GHz+10%
L3 Cache	25 MB (total)+127%	11 MB
L2 Cache	256K (per core)+3100%	8 MB
Process	22 nm	14 nm-36%
Architecture	Haswell-EP (2014−2015)	Cascade Lake (2019−2020)
PassMark	14,820	14,683
Geekbench 6 Single	1,050	—
Geekbench 6 Multi	9,000	—

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Memory & Platform

The Xeon E5-1681 V3 uses the LGA2011-3 socket (PCIe 3.0), while the Xeon Silver 4215R uses LGA3647 (PCIe 3.0) — making them incompatible on the same motherboard.

Feature	Xeon E5-1681 V3	Xeon Silver 4215R
Socket	LGA2011-3	LGA3647
PCIe Generation	PCIe 3.0	PCIe 3.0
Max RAM Speed	DDR4-2133	—
Max RAM Capacity	768 GB	—
RAM Channels	4	—
ECC Support	Yes	—
PCIe Lanes	40	—