Core 5 120UL vs Xeon E-2126G

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 5 120UL

2024

Why buy it

✅Better for gaming: +24.1% higher average FPS across 50 shared CPU benchmark tests.
✅Costs $2,425 less on MSRP ($277 MSRP vs $2,702 MSRP).
✅Delivers 886.8% more PassMark for each dollar spent, at 38.1 vs 3.9 PassMark/$ ($277 MSRP vs $2,702 MSRP).
✅Draws 15W instead of 80W, a 65W reduction.
✅Newer platform on LGA1700 with DDR5 support instead of LGA1151 and DDR4.

Trade-offs

❌Fewer obvious downsides in this matchup outside of normal market pricing swings.

Xeon E-2126G

2018

Why buy it

Trade-offs

❌Worse for gaming: lower average FPS than Core 5 120UL across 50 shared CPU benchmark tests.
❌Lower PassMark (10,437 vs 10,558).
❌Lower PassMark per dollar, at 3.9 vs 38.1 PassMark/$ ($2,702 MSRP vs $277 MSRP).
❌433.3% higher power demand at 80W vs 15W.
❌Older platform position on LGA1151 with DDR4, while Core 5 120UL moves to LGA1700 and DDR5.

Core 5 120UL

2024

Xeon E-2126G

2018

Why buy it

✅Better for gaming: +24.1% higher average FPS across 50 shared CPU benchmark tests.
✅Costs $2,425 less on MSRP ($277 MSRP vs $2,702 MSRP).
✅Delivers 886.8% more PassMark for each dollar spent, at 38.1 vs 3.9 PassMark/$ ($277 MSRP vs $2,702 MSRP).
✅Draws 15W instead of 80W, a 65W reduction.
✅Newer platform on LGA1700 with DDR5 support instead of LGA1151 and DDR4.

Why buy it

Trade-offs

❌Fewer obvious downsides in this matchup outside of normal market pricing swings.

Trade-offs

❌Worse for gaming: lower average FPS than Core 5 120UL across 50 shared CPU benchmark tests.
❌Lower PassMark (10,437 vs 10,558).
❌Lower PassMark per dollar, at 3.9 vs 38.1 PassMark/$ ($2,702 MSRP vs $277 MSRP).
❌433.3% higher power demand at 80W vs 15W.
❌Older platform position on LGA1151 with DDR4, while Core 5 120UL moves to LGA1700 and DDR5.

Quick Answers

So, is Core 5 120UL better than Xeon E-2126G?

Not in a simple one-size-fits-all way. Xeon E-2126G makes more sense for workstation-style multi-core throughput, while Core 5 120UL 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 5 120UL is the better pick here. According to our tests, it delivers 24.1% 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 5 120UL is the better fit. You are getting 1.2% better PassMark, backed by 10 cores and 12 threads.

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

Core 5 120UL is the smarter buy today. Core 5 120UL is $2,425 cheaper on MSRP at $277 MSRP versus $2,702 MSRP, and it gives you a 24.1% average FPS lead across 50 shared CPU game tests in our data. It is also 886.8% better value on MSRP (38.1 vs 3.9 PassMark/$), so the better CPU is not just faster, it is also the cleaner value play on paper.

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

Core 5 120UL is the more future-proof choice for 2026 and beyond. You are getting a newer CPU generation (2024 vs 2018), a healthier platform with LGA1700 and DDR5 instead of LGA1151, and more multi-core headroom with 10 cores / 12 threads instead of 6/6. 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 5 120UL Benchmark Check

Xeon E-2126G Benchmark Check

Path of Exile 2

Preset	Core 5 120UL	Xeon E-2126G
1080p
low	173 FPS	172 FPS
medium	141 FPS	140 FPS
high	117 FPS	111 FPS
ultra	95 FPS	92 FPS
1440p
low	144 FPS	149 FPS
medium	114 FPS	121 FPS
high	94 FPS	96 FPS
ultra	77 FPS	80 FPS
4K
low	79 FPS	83 FPS
medium	68 FPS	73 FPS
high	54 FPS	57 FPS
ultra	43 FPS	45 FPS

Open Core 5 120UL Open Xeon E-2126G

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	Core 5 120UL	Xeon E-2126G
1080p
low	201 FPS	261 FPS
medium	171 FPS	258 FPS
high	155 FPS	232 FPS
ultra	136 FPS	202 FPS
1440p
low	177 FPS	261 FPS
medium	155 FPS	232 FPS
high	143 FPS	211 FPS
ultra	123 FPS	183 FPS
4K
low	138 FPS	227 FPS
medium	125 FPS	191 FPS
high	118 FPS	175 FPS
ultra	102 FPS	147 FPS

Open Core 5 120UL Open Xeon E-2126G

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	Core 5 120UL	Xeon E-2126G
1080p
low	264 FPS	261 FPS
medium	264 FPS	261 FPS
high	264 FPS	261 FPS
ultra	264 FPS	261 FPS
1440p
low	264 FPS	261 FPS
medium	264 FPS	261 FPS
high	264 FPS	261 FPS
ultra	264 FPS	261 FPS
4K
low	264 FPS	261 FPS
medium	264 FPS	239 FPS
high	264 FPS	202 FPS
ultra	249 FPS	159 FPS

Open Core 5 120UL Open Xeon E-2126G

League of Legends

League of Legends

Valorant

Preset	Core 5 120UL	Xeon E-2126G
1080p
low	264 FPS	261 FPS
medium	264 FPS	261 FPS
high	264 FPS	261 FPS
ultra	264 FPS	261 FPS
1440p
low	264 FPS	261 FPS
medium	264 FPS	261 FPS
high	264 FPS	261 FPS
ultra	264 FPS	261 FPS
4K
low	264 FPS	261 FPS
medium	264 FPS	261 FPS
high	264 FPS	261 FPS
ultra	264 FPS	261 FPS

Open Core 5 120UL Open Xeon E-2126G

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Core 5 120UL and Xeon E-2126G

Core 5 120UL

The Core 5 120UL is manufactured by Intel. It was released in 8 April 2024 (1 year ago). It is based on the Raptor Lake-PS (2024) architecture. It features 10 cores and 12 threads. Base frequency is 1.3 GHz, with boost up to 4.6 GHz. L3 cache: 12 MB (total). L2 cache: 1.25 MB (per core). Built on 10 nm process technology. Socket: LGA1700. Thermal design power (TDP): 15 Watt. Memory support: DDR4, DDR5. Passmark benchmark score: 10,558 points. Launch price was $149.

Xeon E-2126G

The Xeon E-2126G is manufactured by Intel. It was released in 12 July 2018 (7 years ago). It is based on the Coffee Lake-S WS (2018−2019) architecture. It features 6 cores and 6 threads. Base frequency is 3.3 GHz, with boost up to 4.5 GHz. L3 cache: 12 MB (total). L2 cache: 256 kB (per core). Built on 14 nm process technology. Socket: LGA1151. Thermal design power (TDP): 80 Watt. Memory support: DDR4-2666. Passmark benchmark score: 10,437 points. Launch price was $255.

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Processing Power

The Core 5 120UL packs 10 cores / 12 threads, while the Xeon E-2126G offers 6 cores / 6 threads — the Core 5 120UL has 4 more cores. Boost clocks reach 4.6 GHz on the Core 5 120UL versus 4.5 GHz on the Xeon E-2126G — a 2.2% clock advantage for the Core 5 120UL (base: 1.3 GHz vs 3.3 GHz). The Core 5 120UL uses the Raptor Lake-PS (2024) architecture (10 nm), while the Xeon E-2126G uses Coffee Lake-S WS (2018−2019) (14 nm). In PassMark, the Core 5 120UL scores 10,558 against the Xeon E-2126G's 10,437 — a 1.2% lead for the Core 5 120UL. Both processors carry 12 MB (total) of L3 cache.

Feature	Core 5 120UL	Xeon E-2126G
Cores / Threads	10 / 12+67%	6 / 6
Boost Clock	4.6 GHz+2%	4.5 GHz
Base Clock	1.3 GHz	3.3 GHz+154%
L3 Cache	12 MB (total)	12 MB (total)
L2 Cache	1.25 MB (per core)+400%	256 kB (per core)
Process	10 nm-29%	14 nm
Architecture	Raptor Lake-PS (2024)	Coffee Lake-S WS (2018−2019)
PassMark	10,558+1%	10,437

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Memory & Platform

The Core 5 120UL uses the LGA1700 socket (PCIe 5.0), while the Xeon E-2126G uses LGA1151 (PCIe 3.0) — making them incompatible on the same motherboard.

Feature	Core 5 120UL	Xeon E-2126G
Socket	LGA1700	LGA1151
PCIe Generation	PCIe 5.0+67%	PCIe 3.0

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Value Analysis

The Core 5 120UL launched at $277 MSRP, while the Xeon E-2126G debuted at $2702. On MSRP ($277 vs $2702), the Core 5 120UL is $2425 cheaper. In terms of value on MSRP (PassMark points per dollar), the Core 5 120UL delivers 38.1 pts/$ vs 3.9 pts/$ for the Xeon E-2126G — making the Core 5 120UL the 163.2% better value option.