Xeon 6315P vs Xeon D-1577

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 6315P vs Xeon D-1577 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 6315P vs Xeon D-1577: Pros, Cons & Final Verdict

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

Xeon 6315P

2025

Why buy it

✅+0.7% higher PassMark.
✅+700% larger total L3 cache (12 MB vs 1.5 MB).
✅Newer platform on LGA1700 with DDR5 support instead of FCBGA1667 and DDR4.

Trade-offs

❌Worse for gaming: lower average FPS than Xeon D-1577 across 50 shared CPU benchmark tests.
❌Launch MSRP is still $1,166 MSRP, while Xeon D-1577 mostly shows up through inconsistent older-market listings.
❌22.2% higher power demand at 55W vs 45W.

Xeon D-1577

2016

Why buy it

✅Better for gaming: +15.8% higher average FPS across 50 shared CPU benchmark tests.
✅Draws 45W instead of 55W, a 10W reduction.

Trade-offs

❌Lower PassMark (11,645 vs 11,721).
❌Smaller total L3 cache (1.5 MB vs 12 MB).
❌Older platform position on FCBGA1667 with DDR4, while Xeon 6315P moves to LGA1700 and DDR5.

Quick Answers

So, is Xeon 6315P better than Xeon D-1577?

It depends on what you want from the system. For gaming, Xeon D-1577 is ahead with a 15.8% average FPS lead across 50 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Xeon 6315P pulls ahead with 0.7% better PassMark. Xeon 6315P also has the bigger cache pool with 700% larger total L3 cache (12 MB vs 1.5 MB).

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

For streaming, content creation, and heavier multitasking, Xeon 6315P is the stronger fit. You are getting 0.7% better PassMark, backed by 4 cores and 4 threads. It also has the larger cache pool with 700% larger total L3 cache (12 MB vs 1.5 MB).

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

Xeon 6315P is the better buy right now. Xeon 6315P comes in at an unclear MSRP at $1,166 MSRP versus unclear MSRP, and it still gives you 0.7% better PassMark. The compromise is that Xeon D-1577 is still the better pure gaming CPU with a 15.8% average FPS lead across 50 shared CPU game tests in our data. It is also 100.0% better value on MSRP (10.1 vs 0.0 PassMark/$), 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 6315P makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2025 vs 2016), a healthier platform with LGA1700 and DDR5 instead of FCBGA1667, 700% larger total L3 cache (12 MB vs 1.5 MB), and more multi-core headroom with 4 cores / 4 threads instead of 16/32. That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

Xeon 6315P vs Xeon D-1577 Technical Specifications

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

Xeon 6315P

The Xeon 6315P is manufactured by Intel. It was released in 24 February 2025 (less than a year ago). It is based on the Raptor Lake-R (2023−2025) architecture. It features 4 cores and 4 threads. Base frequency is 2.8 GHz, with boost up to 4.5 GHz. L3 cache: 12 MB (total). L2 cache: 1.25 MB (per core). Built on Intel 7 nm process technology. Socket: LGA1700. Thermal design power (TDP): 55 Watt. Memory support: DDR5-4800. Passmark benchmark score: 11,721 points. Launch price was $213.

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.

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Processing Power

The Xeon 6315P packs 4 cores / 4 threads, while the Xeon D-1577 offers 16 cores / 32 threads — the Xeon D-1577 has 12 more cores. Boost clocks reach 4.5 GHz on the Xeon 6315P versus 2.1 GHz on the Xeon D-1577 — a 72.7% clock advantage for the Xeon 6315P (base: 2.8 GHz vs 1.3 GHz). The Xeon 6315P uses the Raptor Lake-R (2023−2025) architecture (Intel 7 nm), while the Xeon D-1577 uses Broadwell (2015−2019) (14 nm). In PassMark, the Xeon 6315P scores 11,721 against the Xeon D-1577's 11,645 — a 0.7% lead for the Xeon 6315P. L3 cache: 12 MB (total) on the Xeon 6315P vs 1.5 MB (per core) on the Xeon D-1577.

Feature	Xeon 6315P	Xeon D-1577
Cores / Threads	4 / 4	16 / 32+300%
Boost Clock	4.5 GHz+114%	2.1 GHz
Base Clock	2.8 GHz+115%	1.3 GHz
L3 Cache	12 MB (total)+700%	1.5 MB (per core)
L2 Cache	1.25 MB (per core)	256K (per core)+20380%
Process	Intel 7 nm-50%	14 nm
Architecture	Raptor Lake-R (2023−2025)	Broadwell (2015−2019)
PassMark	11,721	11,645

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Memory & Platform

The Xeon 6315P uses the LGA1700 socket (PCIe 4.0), while the Xeon D-1577 uses FCBGA1667 (PCIe 3.0) — making them incompatible on the same motherboard.