Atom x7405C vs Xeon D-1527

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.

Atom x7405C vs Xeon D-1527 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.

Atom x7405C vs Xeon D-1527: Pros, Cons & Final Verdict

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

Atom x7405C

2024

Why buy it

✅+1.6% higher PassMark.
✅+300% larger total L3 cache (6 MB vs 1.5 MB).
✅Draws 12W instead of 35W, a 23W reduction.
✅Newer platform on FCBGA1264 with DDR5 support instead of FCBGA1667 and DDR4.
✅100+% more PCIe lanes (9 vs 0) for storage and expansion-heavy builds.

Trade-offs

❌Worse for gaming: lower average FPS than Xeon D-1527 across 49 shared CPU benchmark tests.
❌Less compelling for workstation-style loads than Xeon D-1527, which brings 4 cores / 8 threads.

Xeon D-1527

2015

Why buy it

✅Better for gaming: +17.9% higher average FPS across 49 shared CPU benchmark tests.
✅Better for workstations and heavier parallel workloads: 4 cores / 8 threads.

Trade-offs

❌Lower PassMark (5,137 vs 5,218).
❌Smaller total L3 cache (1.5 MB vs 6 MB).
❌191.7% higher power demand at 35W vs 12W.
❌Older platform position on FCBGA1667 with DDR4, while Atom x7405C moves to FCBGA1264 and DDR5.
❌No integrated graphics, while Atom x7405C can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Atom x7405C better than Xeon D-1527?

Not really, because they are built for different jobs. Xeon D-1527 makes more sense for workstation-style multi-core throughput, while Atom x7405C is the more practical desktop choice for gaming, platform cost, and everyday use.

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

For streaming, content creation, and heavier multitasking, Atom x7405C is the stronger fit. You are getting 1.6% better PassMark, backed by 4 cores and 4 threads. It also has the larger cache pool with 300% larger total L3 cache (6 MB vs 1.5 MB).

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

Atom x7405C still makes the most sense overall. Atom x7405C comes in at an unclear MSRP at unclear MSRP versus unclear MSRP, and it still gives you 1.6% better PassMark.

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

Atom x7405C makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2024 vs 2015), a healthier platform with FCBGA1264 and DDR5 instead of FCBGA1667, 300% larger total L3 cache (6 MB vs 1.5 MB), and more multi-core headroom with 4 cores / 4 threads instead of 4/8. That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

Atom x7405C vs Xeon D-1527 Technical Specifications

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

Atom x7405C

The Atom x7405C is manufactured by Intel. It was released in 8 April 2024 (1 year ago). It is based on the Amston Lake (2024−2025) architecture. It features 4 cores and 4 threads. Base frequency is 1.7 GHz, with boost up to 3.4 GHz. L3 cache: 6 MB (total). L2 cache: 2 MB (total). Built on 10 nm process technology. Socket: FCBGA1264. Thermal design power (TDP): 12 Watt. Memory support: DDR4, DDR5. Passmark benchmark score: 5,218 points. Launch price was $57.

Xeon D-1527

The Xeon D-1527 is manufactured by Intel. It was released in 1 November 2015 (10 years ago). It is based on the Broadwell (2015−2019) architecture. It features 4 cores and 8 threads. Base frequency is 2.2 GHz, with boost up to 2.7 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): 35 Watt. Memory support: DDR4, DDR3. Passmark benchmark score: 5,137 points. Launch price was $213.

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Processing Power

The Atom x7405C packs 4 cores / 4 threads, matching the Xeon D-1527's 4 cores. Boost clocks reach 3.4 GHz on the Atom x7405C versus 2.7 GHz on the Xeon D-1527 — a 23% clock advantage for the Atom x7405C (base: 1.7 GHz vs 2.2 GHz). The Atom x7405C uses the Amston Lake (2024−2025) architecture (10 nm), while the Xeon D-1527 uses Broadwell (2015−2019) (14 nm). In PassMark, the Atom x7405C scores 5,218 against the Xeon D-1527's 5,137 — a 1.6% lead for the Atom x7405C. L3 cache: 6 MB (total) on the Atom x7405C vs 1.5 MB (per core) on the Xeon D-1527.

Feature	Atom x7405C	Xeon D-1527
Cores / Threads	4 / 4	4 / 8
Boost Clock	3.4 GHz+26%	2.7 GHz
Base Clock	1.7 GHz	2.2 GHz+29%
L3 Cache	6 MB (total)+300%	1.5 MB (per core)
L2 Cache	2 MB (total)	256K (per core)+12700%
Process	10 nm-29%	14 nm
Architecture	Amston Lake (2024−2025)	Broadwell (2015−2019)
PassMark	5,218+2%	5,137

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Memory & Platform

The Atom x7405C uses the FCBGA1264 socket (PCIe 4.0), while the Xeon D-1527 uses FCBGA1667 (PCIe 3.0) — making them incompatible on the same motherboard.

Feature	Atom x7405C	Xeon D-1527
Socket	FCBGA1264	FCBGA1667
PCIe Generation	PCIe 4.0+33%	PCIe 3.0
Max RAM Speed	DDR5-4800	—
Max RAM Capacity	16 GB	—
RAM Channels	1	—
ECC Support	No	—
PCIe Lanes	9	—