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.

Core i5-1230U

2022

Why buy it

✅Better for gaming: +14.2% higher average FPS across 50 shared CPU benchmark tests.
✅Draws 10W instead of 135W, a 126W reduction.
✅Newer platform on FCBGA1781 with DDR5 support instead of LGA2011 and DDR4.
✅Integrated graphics onboard with Iris Xe Graphics 80EU, while Xeon E5-4655 v4 needs a discrete GPU.

Trade-offs

❌Smaller total L3 cache (12 MB vs 30 MB).
❌Less compelling for workstation-style loads than Xeon E5-4655 v4, which brings 8 cores / 16 threads and 40 PCIe lanes.

Xeon E5-4655 v4

2016

Why buy it

✅+150% larger total L3 cache (30 MB vs 12 MB).
✅Better for workstations and heavier parallel workloads: 8 cores / 16 threads, plus 40 PCIe lanes vs 14.
✅185.7% more PCIe lanes (40 vs 14) for storage and expansion-heavy builds.

Trade-offs

❌Worse for gaming: lower average FPS than Core i5-1230U across 50 shared CPU benchmark tests.
❌Lower PassMark (10,912 vs 10,995).
❌Launch MSRP is still $4,616 MSRP, while Core i5-1230U mostly shows up through inconsistent older-market listings.
❌1321.1% higher power demand at 135W vs 9.5W.
❌Older platform position on LGA2011 with DDR4, while Core i5-1230U moves to FCBGA1781 and DDR5.

Core i5-1230U

2022

Xeon E5-4655 v4

2016

Why buy it

✅Better for gaming: +14.2% higher average FPS across 50 shared CPU benchmark tests.
✅Draws 10W instead of 135W, a 126W reduction.
✅Newer platform on FCBGA1781 with DDR5 support instead of LGA2011 and DDR4.
✅Integrated graphics onboard with Iris Xe Graphics 80EU, while Xeon E5-4655 v4 needs a discrete GPU.

Why buy it

✅+150% larger total L3 cache (30 MB vs 12 MB).
✅Better for workstations and heavier parallel workloads: 8 cores / 16 threads, plus 40 PCIe lanes vs 14.
✅185.7% more PCIe lanes (40 vs 14) for storage and expansion-heavy builds.

Trade-offs

❌Smaller total L3 cache (12 MB vs 30 MB).
❌Less compelling for workstation-style loads than Xeon E5-4655 v4, which brings 8 cores / 16 threads and 40 PCIe lanes.

Trade-offs

❌Worse for gaming: lower average FPS than Core i5-1230U across 50 shared CPU benchmark tests.
❌Lower PassMark (10,912 vs 10,995).
❌Launch MSRP is still $4,616 MSRP, while Core i5-1230U mostly shows up through inconsistent older-market listings.
❌1321.1% higher power demand at 135W vs 9.5W.
❌Older platform position on LGA2011 with DDR4, while Core i5-1230U moves to FCBGA1781 and DDR5.

Quick Answers

So, is Core i5-1230U better than Xeon E5-4655 v4?

Not in a simple one-size-fits-all way. Xeon E5-4655 v4 makes more sense for workstation-style multi-core throughput, while Core i5-1230U is the better mainstream desktop choice for gaming, platform cost, and day-to-day practicality.

Which one is better for gaming?

If gaming is the priority, Core i5-1230U is the better pick here. According to our tests, it delivers 14.2% 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, Core i5-1230U is the better fit. You are getting 0.8% better PassMark, backed by 10 cores and 12 threads.

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

Core i5-1230U is still the faster CPU overall, but Xeon E5-4655 v4 makes more sense if price matters more than absolute performance. Core i5-1230U is at an unclear MSRP at unclear MSRP versus $4,616 MSRP, and it gives you a 14.2% average FPS lead across 50 shared CPU game tests in our data. Xeon E5-4655 v4 is also 100.0% better value on MSRP (2.4 vs 0.0 PassMark/$), which is why it is easier to justify for price-conscious builds on paper.

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

Core i5-1230U is the more future-proof choice for 2026 and beyond. You are getting a newer CPU generation (2022 vs 2016), a healthier platform with FCBGA1781 and DDR5 instead of LGA2011, and more multi-core headroom with 10 cores / 12 threads instead of 8/16. 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.

Core i5-1230U Benchmark Check

Xeon E5-4655 v4 Benchmark Check

Path of Exile 2

Preset	Core i5-1230U	Xeon E5-4655 v4
1080p
low	186 FPS	158 FPS
medium	153 FPS	137 FPS
high	127 FPS	110 FPS
ultra	105 FPS	91 FPS
1440p
low	150 FPS	133 FPS
medium	119 FPS	112 FPS
high	97 FPS	88 FPS
ultra	80 FPS	72 FPS
4K
low	84 FPS	62 FPS
medium	72 FPS	56 FPS
high	58 FPS	44 FPS
ultra	45 FPS	34 FPS

Open Core i5-1230U Open Xeon E5-4655 v4

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	Core i5-1230U	Xeon E5-4655 v4
1080p
low	208 FPS	273 FPS
medium	172 FPS	273 FPS
high	158 FPS	253 FPS
ultra	139 FPS	209 FPS
1440p
low	183 FPS	273 FPS
medium	156 FPS	257 FPS
high	146 FPS	222 FPS
ultra	125 FPS	181 FPS
4K
low	148 FPS	182 FPS
medium	130 FPS	166 FPS
high	124 FPS	144 FPS
ultra	107 FPS	114 FPS

Open Core i5-1230U Open Xeon E5-4655 v4

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	Core i5-1230U	Xeon E5-4655 v4
1080p
low	275 FPS	273 FPS
medium	275 FPS	273 FPS
high	275 FPS	273 FPS
ultra	275 FPS	273 FPS
1440p
low	275 FPS	273 FPS
medium	275 FPS	273 FPS
high	275 FPS	273 FPS
ultra	275 FPS	273 FPS
4K
low	275 FPS	273 FPS
medium	275 FPS	273 FPS
high	275 FPS	273 FPS
ultra	272 FPS	261 FPS

Open Core i5-1230U Open Xeon E5-4655 v4

League of Legends

League of Legends

Valorant

Preset	Core i5-1230U	Xeon E5-4655 v4
1080p
low	275 FPS	273 FPS
medium	275 FPS	273 FPS
high	275 FPS	273 FPS
ultra	275 FPS	273 FPS
1440p
low	275 FPS	273 FPS
medium	275 FPS	273 FPS
high	275 FPS	273 FPS
ultra	275 FPS	273 FPS
4K
low	275 FPS	273 FPS
medium	275 FPS	273 FPS
high	275 FPS	273 FPS
ultra	275 FPS	273 FPS

Open Core i5-1230U Open Xeon E5-4655 v4

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Core i5-1230U and Xeon E5-4655 v4

Core i5-1230U

The Core i5-1230U is manufactured by Intel. It was released in 23 February 2022 (3 years ago). It is based on the Alder Lake-U (2022) architecture. It features 10 cores and 12 threads. Base frequency is 1 GHz, with boost up to 4.4 GHz. L3 cache: 12 MB (total). L2 cache: 1.25 MB (per core). Built on Intel 7 nm process technology. Socket: FCBGA1781. Thermal design power (TDP): 9.5 MB + 12 MB. Memory support: DDR4, DDR5. Passmark benchmark score: 10,995 points. Launch price was $149.

Xeon E5-4655 v4

The Xeon E5-4655 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 2.5 GHz, with boost up to 3.2 GHz. L3 cache: 30 MB. L2 cache: 2 MB. Built on 14 nm process technology. Socket: LGA2011. Thermal design power (TDP): 135 Watt. Memory support: DDR4. Passmark benchmark score: 10,912 points. Launch price was $4,616.

⚡

Processing Power

The Core i5-1230U packs 10 cores / 12 threads, while the Xeon E5-4655 v4 offers 8 cores / 16 threads — the Core i5-1230U has 2 more cores. Boost clocks reach 4.4 GHz on the Core i5-1230U versus 3.2 GHz on the Xeon E5-4655 v4 — a 31.6% clock advantage for the Core i5-1230U (base: 1 GHz vs 2.5 GHz). The Core i5-1230U uses the Alder Lake-U (2022) architecture (Intel 7 nm), while the Xeon E5-4655 v4 uses Broadwell (2015−2019) (14 nm). In PassMark, the Core i5-1230U scores 10,995 against the Xeon E5-4655 v4's 10,912 — a 0.8% lead for the Core i5-1230U. L3 cache: 12 MB (total) on the Core i5-1230U vs 30 MB on the Xeon E5-4655 v4.

Feature	Core i5-1230U	Xeon E5-4655 v4
Cores / Threads	10 / 12+25%	8 / 16
Boost Clock	4.4 GHz+38%	3.2 GHz
Base Clock	1 GHz	2.5 GHz+150%
L3 Cache	12 MB (total)	30 MB+150%
L2 Cache	1.25 MB (per core)	2 MB+60%
Process	Intel 7 nm-50%	14 nm
Architecture	Alder Lake-U (2022)	Broadwell (2015−2019)
PassMark	10,995	10,912
Geekbench 6 Single	1,625	—

🧠

Memory & Platform

The Core i5-1230U uses the FCBGA1781 socket (PCIe 5.0), while the Xeon E5-4655 v4 uses LGA2011 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches LPDDR5-5200 on the Core i5-1230U versus DDR4-2400 on the Xeon E5-4655 v4 — the Core i5-1230U supports 22.2% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Xeon E5-4655 v4 supports up to 1536 GB of RAM compared to 64 GB — 184% more capacity for professional workloads. Memory channels: 2 (Core i5-1230U) vs 4 (Xeon E5-4655 v4). PCIe lanes: 14 (Core i5-1230U) vs 40 (Xeon E5-4655 v4) — the Xeon E5-4655 v4 offers 26 more lanes for additional GPUs or NVMe drives.

Feature	Core i5-1230U	Xeon E5-4655 v4
Socket	FCBGA1781	LGA2011
PCIe Generation	PCIe 5.0	PCIe 5.0
Max RAM Speed	LPDDR5-5200+25%	DDR4-2400
Max RAM Capacity	64 GB	1536 GB+2300%
RAM Channels	2	4+100%
ECC Support	No	Yes
PCIe Lanes	14	40+186%

🔧

Advanced Features

Neither processor supports overclocking. Virtualization support: VT-x, VT-d, EPT (Core i5-1230U) vs VT-x, VT-d (Xeon E5-4655 v4). The Core i5-1230U includes integrated graphics (Iris Xe Graphics 80EU), while the Xeon E5-4655 v4 requires a dedicated GPU. Primary use case: Core i5-1230U targets Thin & Light Laptop, Xeon E5-4655 v4 targets Server. Direct competitor: Core i5-1230U rivals Ryzen 5 5600U.

Feature	Core i5-1230U	Xeon E5-4655 v4
Integrated GPU	Yes	No
IGPU Model	Iris Xe Graphics 80EU	—
Unlocked	No	No
AVX-512	No	No
Virtualization	VT-x, VT-d, EPT	VT-x, VT-d
Target Use	Thin & Light Laptop	Server