Xeon D-1577 vs Xeon E5-2663 V3

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 D-1577 vs Xeon E5-2663 V3 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 D-1577 vs Xeon E5-2663 V3: Pros, Cons & Final Verdict

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

Xeon D-1577

2016

Why buy it

✅Draws 45W instead of 105W, a 60W reduction.

Trade-offs

❌Lower PassMark (11,645 vs 11,777).
❌Smaller total L3 cache (1.5 MB vs 25 MB).

Xeon E5-2663 V3

2014

Why buy it

✅+1566.7% larger total L3 cache (25 MB vs 1.5 MB).

Trade-offs

❌133.3% higher power demand at 105W vs 45W.

Quick Answers

So, is Xeon E5-2663 V3 better than Xeon D-1577?

Yes. Xeon E5-2663 V3 is the better all-around CPU here. It gives you a 2.0% average FPS lead across 50 shared CPU game tests in our data and 1.1% better PassMark, which is enough to make it the stronger overall pick.

Which one is better for gaming?

If gaming is the priority, Xeon E5-2663 V3 is the better pick. According to our tests, it delivers 2.0% 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 E5-2663 V3 is the stronger fit. You are getting 1.1% better PassMark, backed by 10 cores and 20 threads. It also has the larger cache pool with 1566.7% larger total L3 cache (25 MB vs 1.5 MB).

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

Xeon E5-2663 V3 still makes the most sense overall. Xeon E5-2663 V3 comes in at an unclear MSRP at unclear MSRP versus unclear MSRP, and it still gives you a 2.0% average FPS lead across 50 shared CPU game tests in our data.

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

Xeon D-1577 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2016 vs 2014). That makes it the safer long-term bet.

Xeon D-1577 vs Xeon E5-2663 V3 Technical Specifications

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

Xeon D-1577

The Xeon D-1577 is manufactured by Intel. It was released in 24 February 2016 (9 years ago). It is based on the Broadwell (2015−2019) architecture. It features 16 cores and 32 threads. Base frequency is 1.3 GHz, with boost up to 2.1 GHz. L3 cache: 1.5 MB (per core). L2 cache: 256K (per core). Built on 14 nm process technology. Socket: FCBGA1667. Thermal design power (TDP): 45 Watt. Memory support: DDR4, DDR3. Passmark benchmark score: 11,645 points. Launch price was $1,176.

Xeon E5-2663 V3

The Xeon E5-2663 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 2.8 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): 105 Watt. Memory support: DDR4-2133. Passmark benchmark score: 11,777 points. Launch price was $800.

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Processing Power

The Xeon D-1577 packs 16 cores / 32 threads, while the Xeon E5-2663 V3 offers 10 cores / 20 threads — the Xeon D-1577 has 6 more cores. Boost clocks reach 2.1 GHz on the Xeon D-1577 versus 3.5 GHz on the Xeon E5-2663 V3 — a 50% clock advantage for the Xeon E5-2663 V3 (base: 1.3 GHz vs 2.8 GHz). The Xeon D-1577 uses the Broadwell (2015−2019) architecture (14 nm), while the Xeon E5-2663 V3 uses Haswell-EP (2014−2015) (22 nm). In PassMark, the Xeon D-1577 scores 11,645 against the Xeon E5-2663 V3's 11,777 — a 1.1% lead for the Xeon E5-2663 V3. L3 cache: 1.5 MB (per core) on the Xeon D-1577 vs 25 MB (total) on the Xeon E5-2663 V3.

Feature	Xeon D-1577	Xeon E5-2663 V3
Cores / Threads	16 / 32+60%	10 / 20
Boost Clock	2.1 GHz	3.5 GHz+67%
Base Clock	1.3 GHz	2.8 GHz+115%
L3 Cache	1.5 MB (per core)	25 MB (total)+1567%
L2 Cache	256K (per core)	256K (per core)
Process	14 nm-36%	22 nm
Architecture	Broadwell (2015−2019)	Haswell-EP (2014−2015)
PassMark	11,645	11,777+1%

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Memory & Platform

The Xeon D-1577 uses the FCBGA1667 socket (PCIe 3.0), while the Xeon E5-2663 V3 uses LGA2011-3 (PCIe 4.0) — making them incompatible on the same motherboard.