Xeon E3-1565L v5 vs Xeon E5-1620 v4

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 E3-1565L v5 vs Xeon E5-1620 v4 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 E3-1565L v5 vs Xeon E5-1620 v4: Pros, Cons & Final Verdict

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

Xeon E3-1565L v5

2016

Why buy it

✅Draws 35W instead of 140W, a 105W reduction.

Trade-offs

❌Worse for gaming: lower average FPS than Xeon E5-1620 v4 across 50 shared CPU benchmark tests.
❌Lower PassMark (7,325 vs 7,338).
❌Smaller total L3 cache (8 MB vs 10 MB).
❌Lower PassMark per dollar, at 4.7 vs 6.3 PassMark/$ ($1,552 MSRP vs $1,166 MSRP).

Xeon E5-1620 v4

2016

Why buy it

✅Better for gaming: +9.8% higher average FPS across 50 shared CPU benchmark tests.
✅+25% larger total L3 cache (10 MB vs 8 MB).
✅Costs $386 less on MSRP ($1,166 MSRP vs $1,552 MSRP).
✅Delivers 33.3% more PassMark for each dollar spent, at 6.3 vs 4.7 PassMark/$ ($1,166 MSRP vs $1,552 MSRP).

Trade-offs

❌300% higher power demand at 140W vs 35W.

Quick Answers

So, is Xeon E5-1620 v4 better than Xeon E3-1565L v5?

Yes. Xeon E5-1620 v4 is the better all-around CPU here. It gives you a 9.8% average FPS lead across 50 shared CPU game tests in our data, 0.2% better 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, Xeon E5-1620 v4 is the better pick. According to our tests, it delivers 9.8% 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, Xeon E5-1620 v4 is the stronger fit. You are getting 0.2% better PassMark, backed by 4 cores and 8 threads. It also has the larger cache pool with 25% larger total L3 cache (10 MB vs 8 MB).

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

Xeon E5-1620 v4 is the better buy right now. Xeon E5-1620 v4 comes in $386 cheaper on MSRP at $1,166 MSRP versus $1,552 MSRP, and it still gives you a 9.8% average FPS lead across 50 shared CPU game tests in our data. It is also 33.3% better value on MSRP (6.3 vs 4.7 PassMark/$), so you are getting the faster CPU without taking a value hit on paper.

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

Xeon E5-1620 v4 makes more sense long term for 2026 and beyond. You are getting 25% larger total L3 cache (10 MB vs 8 MB) and more multi-core headroom with 4 cores / 8 threads instead of 4/8. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

Xeon E3-1565L v5 vs Xeon E5-1620 v4 Technical Specifications

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

Xeon E3-1565L v5

The Xeon E3-1565L 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 2.5 GHz, with boost up to 3.5 GHz. L3 cache: 8 MB (total). L2 cache: 256 kB (per core). Built on 14 nm process technology. Socket: BGA1440. Thermal design power (TDP): 35 Watt. Memory support: DDR3L,LPDDR3 1600 MHz, DDR4 2133 MHz at 1.2V. Passmark benchmark score: 7,325 points. Launch price was $417.

Xeon E5-1620 v4

The Xeon E5-1620 v4 is manufactured by Intel. It was released in 20 June 2016 (9 years ago). It is based on the Broadwell-EP (2016) architecture. It features 4 cores and 8 threads. Base frequency is 3.5 GHz, with boost up to 3.8 GHz. L3 cache: 10 MB (total). L2 cache: 256K (per core). Built on 14 nm process technology. Socket: LGA2011. Thermal design power (TDP): 140 Watt. Memory support: DDR4-1600, DDR4-1866, DDR4-2133, DDR4-2400. Passmark benchmark score: 7,338 points. Launch price was $294.

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Processing Power

Both the Xeon E3-1565L v5 and Xeon E5-1620 v4 share an identical 4-core/8-thread configuration. Boost clocks reach 3.5 GHz on the Xeon E3-1565L v5 versus 3.8 GHz on the Xeon E5-1620 v4 — a 8.2% clock advantage for the Xeon E5-1620 v4 (base: 2.5 GHz vs 3.5 GHz). The Xeon E3-1565L v5 uses the Skylake-H (2015−2016) architecture (14 nm), while the Xeon E5-1620 v4 uses Broadwell-EP (2016) (14 nm). In PassMark, the Xeon E3-1565L v5 scores 7,325 against the Xeon E5-1620 v4's 7,338 — a 0.2% lead for the Xeon E5-1620 v4. L3 cache: 8 MB (total) on the Xeon E3-1565L v5 vs 10 MB (total) on the Xeon E5-1620 v4.

Feature	Xeon E3-1565L v5	Xeon E5-1620 v4
Cores / Threads	4 / 8	4 / 8
Boost Clock	3.5 GHz	3.8 GHz+9%
Base Clock	2.5 GHz	3.5 GHz+40%
L3 Cache	8 MB (total)	10 MB (total)+25%
L2 Cache	256 kB (per core)	256K (per core)
Process	14 nm	14 nm
Architecture	Skylake-H (2015−2016)	Broadwell-EP (2016)
PassMark	7,325	7,338

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Memory & Platform

The Xeon E3-1565L v5 uses the BGA1440 socket (PCIe 5.0), while the Xeon E5-1620 v4 uses LGA2011 (PCIe 3.0) — making them incompatible on the same motherboard.

Feature	Xeon E3-1565L v5	Xeon E5-1620 v4
Socket	BGA1440	LGA2011
PCIe Generation	PCIe 5.0+67%	PCIe 3.0

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Value Analysis

At launch, the Xeon E3-1565L v5 was priced at $1552, while the Xeon E5-1620 v4 came in at $1166. On launch pricing ($1552 vs $1166), Xeon E5-1620 v4 was $386 cheaper. In terms of value on MSRP (PassMark points per dollar), the Xeon E3-1565L v5 delivers 4.7 pts/$ vs 6.3 pts/$ for the Xeon E5-1620 v4 — making the Xeon E5-1620 v4 the 28.6% better value option.

Feature	Xeon E3-1565L v5	Xeon E5-1620 v4
MSRP	$1552	$1166-25%
Performance per Dollar	4.7	6.3+34%
Release Date	2016	2016

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