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.

Head-to-Head Verdict, Benchmarks, Value & Long-Term Outlook

This comparison brings together gaming FPS, productivity performance, platform differences, power efficiency, pricing context, and upgrade path so you can see which CPU actually makes more sense.

Xeon Silver 4509Y

2023

Why buy it

✅Better for gaming: +8.4% higher average FPS across 48 shared CPU benchmark tests.
✅+87.5% larger total L3 cache (23 MB vs 12 MB).
✅Newer platform on LGA4677 with DDR5 support instead of LGA1200 and DDR4.

Trade-offs

❌56.3% higher power demand at 125W vs 80W.
❌No integrated graphics, while Xeon W-1350 can still boot and troubleshoot without a discrete GPU.
❌No boxed cooler included, unlike Xeon W-1350.

Xeon W-1350

2021

Why buy it

✅Draws 80W instead of 125W, a 45W reduction.
✅100+% more PCIe lanes (20 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with UHD Graphics P750, while Xeon Silver 4509Y needs a discrete GPU.
✅Includes a boxed cooler (Yes), unlike Xeon Silver 4509Y.

Trade-offs

❌Worse for gaming: lower average FPS than Xeon Silver 4509Y across 48 shared CPU benchmark tests.
❌Lower PassMark (18,742 vs 18,749).
❌Smaller total L3 cache (12 MB vs 23 MB).
❌Launch MSRP is still $255 MSRP, while Xeon Silver 4509Y mostly shows up through inconsistent older-market listings.
❌Older platform position on LGA1200 with DDR4, while Xeon Silver 4509Y moves to LGA4677 and DDR5.

Xeon Silver 4509Y

2023

Xeon W-1350

2021

Why buy it

✅Better for gaming: +8.4% higher average FPS across 48 shared CPU benchmark tests.
✅+87.5% larger total L3 cache (23 MB vs 12 MB).
✅Newer platform on LGA4677 with DDR5 support instead of LGA1200 and DDR4.

Why buy it

✅Draws 80W instead of 125W, a 45W reduction.
✅100+% more PCIe lanes (20 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with UHD Graphics P750, while Xeon Silver 4509Y needs a discrete GPU.
✅Includes a boxed cooler (Yes), unlike Xeon Silver 4509Y.

Trade-offs

❌56.3% higher power demand at 125W vs 80W.
❌No integrated graphics, while Xeon W-1350 can still boot and troubleshoot without a discrete GPU.
❌No boxed cooler included, unlike Xeon W-1350.

Trade-offs

❌Worse for gaming: lower average FPS than Xeon Silver 4509Y across 48 shared CPU benchmark tests.
❌Lower PassMark (18,742 vs 18,749).
❌Smaller total L3 cache (12 MB vs 23 MB).
❌Launch MSRP is still $255 MSRP, while Xeon Silver 4509Y mostly shows up through inconsistent older-market listings.
❌Older platform position on LGA1200 with DDR4, while Xeon Silver 4509Y moves to LGA4677 and DDR5.

Quick Answers

So, is Xeon Silver 4509Y better than Xeon W-1350?

Yes. Xeon Silver 4509Y is the better overall CPU here. You are getting a 8.4% average FPS lead across 48 shared CPU game tests in our data, 0% better PassMark, and the stronger long-term platform, which makes it the stronger all-around choice.

Which one is better for gaming?

If gaming is the priority, Xeon Silver 4509Y is the better pick here. According to our tests, it delivers 8.4% more average FPS across 48 shared CPU game tests.

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

For streaming, content creation, and heavier multitasking, Xeon Silver 4509Y is the better fit. You are getting 0% better PassMark, backed by 8 cores and 16 threads. It also carries the larger cache pool with 87.5% larger total L3 cache (23 MB vs 12 MB).

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

Xeon Silver 4509Y is still the faster CPU overall, but Xeon W-1350 makes more sense if price matters more than absolute performance. Xeon Silver 4509Y is at an unclear MSRP at unclear MSRP versus $255 MSRP, and it gives you a 8.4% average FPS lead across 48 shared CPU game tests in our data. Xeon W-1350 is also 100.0% better value on MSRP (73.5 vs 0.0 PassMark/$), which is why it is easier to justify for price-conscious builds on paper.

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

Xeon Silver 4509Y is the more future-proof choice for 2026 and beyond. You are getting a newer CPU generation (2023 vs 2021), a healthier platform with LGA4677 and DDR5 instead of LGA1200, 87.5% larger total L3 cache (23 MB vs 12 MB), and more multi-core headroom with 8 cores / 16 threads instead of 6/12. That should give you a better long-term upgrade path for motherboard, RAM, and future CPU swaps.

Games Benchmarks

Paired with RTX 4090

To accurately isolate CPU performance, all benchmarks below use an NVIDIA RTX 4090 as the reference GPU. This eliminates GPU-side bottlenecks and highlights pure processing throughput differences between the CPUs.

Note: Real-world results may vary based on your actual GPU. CPU performance impact is more visible in processing-intensive titles and high-refresh-rate gaming scenarios.

Xeon Silver 4509Y Benchmark Check

Xeon W-1350 Benchmark Check

Path of Exile 2

Preset	Xeon Silver 4509Y	Xeon W-1350
1080p
low	176 FPS	246 FPS
medium	142 FPS	229 FPS
high	116 FPS	191 FPS
ultra	92 FPS	164 FPS
1440p
low	143 FPS	217 FPS
medium	113 FPS	184 FPS
high	90 FPS	148 FPS
ultra	71 FPS	130 FPS
4K
low	66 FPS	151 FPS
medium	55 FPS	128 FPS
high	44 FPS	98 FPS
ultra	35 FPS	87 FPS

Open Xeon Silver 4509Y Open Xeon W-1350

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	Xeon Silver 4509Y	Xeon W-1350
1080p
low	469 FPS	315 FPS
medium	428 FPS	267 FPS
high	355 FPS	244 FPS
ultra	321 FPS	221 FPS
1440p
low	431 FPS	280 FPS
medium	382 FPS	239 FPS
high	324 FPS	221 FPS
ultra	282 FPS	197 FPS
4K
low	280 FPS	222 FPS
medium	250 FPS	191 FPS
high	228 FPS	179 FPS
ultra	204 FPS	146 FPS

Open Xeon Silver 4509Y Open Xeon W-1350

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	Xeon Silver 4509Y	Xeon W-1350
1080p
low	469 FPS	469 FPS
medium	469 FPS	469 FPS
high	469 FPS	440 FPS
ultra	469 FPS	380 FPS
1440p
low	469 FPS	469 FPS
medium	469 FPS	463 FPS
high	469 FPS	396 FPS
ultra	469 FPS	345 FPS
4K
low	469 FPS	385 FPS
medium	414 FPS	337 FPS
high	365 FPS	293 FPS
ultra	298 FPS	242 FPS

Open Xeon Silver 4509Y Open Xeon W-1350

League of Legends

League of Legends

Valorant

Preset	Xeon Silver 4509Y	Xeon W-1350
1080p
low	469 FPS	469 FPS
medium	469 FPS	469 FPS
high	469 FPS	469 FPS
ultra	469 FPS	469 FPS
1440p
low	469 FPS	469 FPS
medium	469 FPS	469 FPS
high	469 FPS	469 FPS
ultra	453 FPS	469 FPS
4K
low	469 FPS	469 FPS
medium	428 FPS	469 FPS
high	383 FPS	451 FPS
ultra	332 FPS	392 FPS

Open Xeon Silver 4509Y Open Xeon W-1350

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Xeon Silver 4509Y and Xeon W-1350

Xeon Silver 4509Y

The Xeon Silver 4509Y is manufactured by Intel. It was released in 14 December 2023 (1 year ago). It is based on the Sapphire Rapids (2023−2024) architecture. It features 8 cores and 16 threads. Base frequency is 2.6 GHz, with boost up to 4.1 GHz. L3 cache: 22.5 MB (total). L2 cache: 2 MB (per core). Built on Intel 7 nm process technology. Socket: LGA4677. Thermal design power (TDP): 125 Watt. Memory support: DDR5 @ 4400 MT/s (1 DPC &2DPC). Passmark benchmark score: 18,749 points. Launch price was $563.

Xeon W-1350

The Xeon W-1350 is manufactured by Intel. It was released in 6 May 2021 (4 years ago). It is based on the Rocket Lake-S (2021) architecture. It features 6 cores and 12 threads. Base frequency is 3.3 GHz, with boost up to 5 GHz. L3 cache: 12 MB (total). L2 cache: 512 kB (per core). Built on 14 nm process technology. Socket: LGA1200. Thermal design power (TDP): 80 Watt. Memory support: DDR4-3200. Passmark benchmark score: 18,742 points. Launch price was $255.

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Processing Power

The Xeon Silver 4509Y packs 8 cores / 16 threads, while the Xeon W-1350 offers 6 cores / 12 threads — the Xeon Silver 4509Y has 2 more cores. Boost clocks reach 4.1 GHz on the Xeon Silver 4509Y versus 5 GHz on the Xeon W-1350 — a 19.8% clock advantage for the Xeon W-1350 (base: 2.6 GHz vs 3.3 GHz). The Xeon Silver 4509Y uses the Sapphire Rapids (2023−2024) architecture (Intel 7 nm), while the Xeon W-1350 uses Rocket Lake-S (2021) (14 nm). In PassMark, the Xeon Silver 4509Y scores 18,749 against the Xeon W-1350's 18,742 — a 0% lead for the Xeon Silver 4509Y. L3 cache: 22.5 MB (total) on the Xeon Silver 4509Y vs 12 MB (total) on the Xeon W-1350.

Feature	Xeon Silver 4509Y	Xeon W-1350
Cores / Threads	8 / 16+33%	6 / 12
Boost Clock	4.1 GHz	5 GHz+22%
Base Clock	2.6 GHz	3.3 GHz+27%
L3 Cache	22.5 MB (total)+88%	12 MB (total)
L2 Cache	2 MB (per core)+300%	512 kB (per core)
Process	Intel 7 nm-50%	14 nm
Architecture	Sapphire Rapids (2023−2024)	Rocket Lake-S (2021)
PassMark	18,749	18,742
Geekbench 6 Single	—	2,140
Geekbench 6 Multi	—	9,104

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Memory & Platform

The Xeon Silver 4509Y uses the LGA4677 socket (PCIe 3.0), while the Xeon W-1350 uses LGA1200 (PCIe 4.0) — making them incompatible on the same motherboard.

Feature	Xeon Silver 4509Y	Xeon W-1350
Socket	LGA4677	LGA1200
PCIe Generation	PCIe 3.0	PCIe 4.0+33%
Max RAM Speed	—	DDR4-3200
Max RAM Capacity	—	128 GB
RAM Channels	—	2
ECC Support	—	Yes
PCIe Lanes	—	20

🔧

Advanced Features

Virtualization: not specified (Xeon Silver 4509Y) / Yes (Xeon W-1350). The Xeon W-1350 includes integrated graphics (UHD Graphics P750), while the Xeon Silver 4509Y requires a dedicated GPU.