Xeon E5-2620 v4 vs Xeon E5-2643 v2

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 E5-2620 v4 vs Xeon E5-2643 v2 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 E5-2620 v4 vs Xeon E5-2643 v2: Pros, Cons & Final Verdict

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

Xeon E5-2620 v4

2016

Why buy it

✅+0.9% higher PassMark.
✅+33.3% larger total L3 cache (20 MB vs 15 MB).
✅Draws 85W instead of 130W, a 45W reduction.
✅100+% more PCIe lanes (40 vs 0) for storage and expansion-heavy builds.

Trade-offs

❌Launch MSRP is still $417 MSRP, while Xeon E5-2643 v2 mostly shows up through inconsistent older-market listings.

Xeon E5-2643 v2

2013

Why buy it

Trade-offs

❌Lower PassMark (9,172 vs 9,255).
❌Smaller total L3 cache (15 MB vs 20 MB).
❌52.9% higher power demand at 130W vs 85W.

Quick Answers

So, is Xeon E5-2620 v4 better than Xeon E5-2643 v2?

It depends on what you want from the system. For gaming, Xeon E5-2643 v2 is ahead with a 0.1% average FPS lead across 50 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Xeon E5-2620 v4 pulls ahead with 0.9% better PassMark. Xeon E5-2620 v4 also has the bigger cache pool with 33.3% larger total L3 cache (20 MB vs 15 MB).

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

For streaming, content creation, and heavier multitasking, Xeon E5-2620 v4 is the stronger fit. You are getting 0.9% better PassMark, backed by 8 cores and 16 threads. It also has the larger cache pool with 33.3% larger total L3 cache (20 MB vs 15 MB).

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

Xeon E5-2620 v4 is the better buy right now. Xeon E5-2620 v4 comes in at an unclear MSRP at $417 MSRP versus unclear MSRP, and it still gives you 0.9% better PassMark. The compromise is that Xeon E5-2643 v2 is still the better pure gaming CPU with a 0.1% average FPS lead across 50 shared CPU game tests in our data. It is also 100.0% better value on MSRP (22.2 vs 0.0 PassMark/$), 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 E5-2620 v4 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2016 vs 2013), 33.3% larger total L3 cache (20 MB vs 15 MB), and more multi-core headroom with 8 cores / 16 threads instead of 6/12. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

Xeon E5-2620 v4 vs Xeon E5-2643 v2 Technical Specifications

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

Xeon E5-2620 v4

The Xeon E5-2620 v4 is manufactured by Intel. It was released in 20 June 2016 (9 years ago). It is based on the Broadwell (2015−2019) architecture. It features 8 cores and 16 threads. Base frequency is 2.1 GHz, with boost up to 3 GHz. L3 cache: 20 MB. L2 cache: 2 MB. Built on 14 nm process technology. Socket: LGA2011. Thermal design power (TDP): 85 Watt. Memory support: DDR4-1600, DDR4-1866, DDR4-2133. Passmark benchmark score: 9,255 points. Launch price was $417.

Xeon E5-2643 v2

The Xeon E5-2643 v2 is manufactured by Intel. It was released in 1 September 2013 (12 years ago). It is based on the Ivy Bridge-EP (2013) architecture. It features 6 cores and 12 threads. Base frequency is 3.5 GHz, with boost up to 3.8 GHz. L3 cache: 15 MB (total). L2 cache: 256 kB (per core). Built on 22 nm process technology. Socket: LGA2011. Thermal design power (TDP): 130 Watt. Memory support: DDR3. Passmark benchmark score: 9,172 points. Launch price was $2,200.

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Processing Power

The Xeon E5-2620 v4 packs 8 cores / 16 threads, while the Xeon E5-2643 v2 offers 6 cores / 12 threads — the Xeon E5-2620 v4 has 2 more cores. Boost clocks reach 3 GHz on the Xeon E5-2620 v4 versus 3.8 GHz on the Xeon E5-2643 v2 — a 23.5% clock advantage for the Xeon E5-2643 v2 (base: 2.1 GHz vs 3.5 GHz). The Xeon E5-2620 v4 uses the Broadwell (2015−2019) architecture (14 nm), while the Xeon E5-2643 v2 uses Ivy Bridge-EP (2013) (22 nm). In PassMark, the Xeon E5-2620 v4 scores 9,255 against the Xeon E5-2643 v2's 9,172 — a 0.9% lead for the Xeon E5-2620 v4. L3 cache: 20 MB on the Xeon E5-2620 v4 vs 15 MB (total) on the Xeon E5-2643 v2.

Feature	Xeon E5-2620 v4	Xeon E5-2643 v2
Cores / Threads	8 / 16+33%	6 / 12
Boost Clock	3 GHz	3.8 GHz+27%
Base Clock	2.1 GHz	3.5 GHz+67%
L3 Cache	20 MB+33%	15 MB (total)
L2 Cache	2 MB+700%	256 kB (per core)
Process	14 nm-36%	22 nm
Architecture	Broadwell (2015−2019)	Ivy Bridge-EP (2013)
PassMark	9,255	9,172

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Memory & Platform

Both processors use the LGA2011 socket with PCIe 3.0.

Feature	Xeon E5-2620 v4	Xeon E5-2643 v2
Socket	LGA2011	LGA2011
PCIe Generation	PCIe 3.0	PCIe 5.0+67%
Max RAM Speed	DDR4-2133	—
Max RAM Capacity	1536 GB	—
RAM Channels	4	—
ECC Support	Yes	—
PCIe Lanes	40	—