Xeon E-2104G vs Xeon E3-1515M v5

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 E-2104G vs Xeon E3-1515M v5 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 E-2104G vs Xeon E3-1515M v5: Pros, Cons & Final Verdict

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

Xeon E-2104G

2018

Why buy it

Trade-offs

❌Worse for gaming: lower average FPS than Xeon E3-1515M v5 across 49 shared CPU benchmark tests.
❌Lower PassMark (5,858 vs 5,925).
❌Launch MSRP is still $193 MSRP, while Xeon E3-1515M v5 mostly shows up through inconsistent older-market listings.
❌44.4% higher power demand at 65W vs 45W.
❌No integrated graphics, while Xeon E3-1515M v5 can still boot and troubleshoot without a discrete GPU.

Xeon E3-1515M v5

2016

Why buy it

✅Better for gaming: +20.0% higher average FPS across 49 shared CPU benchmark tests.
✅Draws 45W instead of 65W, a 20W reduction.
✅100+% more PCIe lanes (16 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with Iris Pro Graphics P580, while Xeon E-2104G needs a discrete GPU.

Trade-offs

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

Quick Answers

So, is Xeon E3-1515M v5 better than Xeon E-2104G?

Yes. Xeon E3-1515M v5 is the better all-around CPU here. It gives you a 20.0% average FPS lead across 49 shared CPU game tests in our data and 1.1% better PassMark, which is enough to make it the stronger overall pick.

Which one is better for gaming?

If gaming is the priority, Xeon E3-1515M v5 is the better pick. According to our tests, it delivers 20.0% more average FPS across 49 shared CPU game tests.

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

For streaming, content creation, and heavier multitasking, Xeon E3-1515M v5 is the stronger fit. You are getting 1.1% better PassMark, backed by 4 cores and 8 threads.

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

Xeon E3-1515M v5 is still the faster CPU overall, but Xeon E-2104G is easier to justify if budget matters more than peak performance. Xeon E3-1515M v5 comes in at an unclear MSRP at unclear MSRP versus $193 MSRP, and it still gives you a 20.0% average FPS lead across 49 shared CPU game tests in our data. Xeon E-2104G is also 100.0% better value on MSRP (30.4 vs 0.0 PassMark/$), which is why it can still make sense for tighter-budget builds on paper.

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

Xeon E-2104G makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2018 vs 2016). That makes it the safer long-term bet.

Xeon E-2104G vs Xeon E3-1515M v5 Technical Specifications

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

Xeon E-2104G

The Xeon E-2104G 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 4 cores and 4 threads. Base frequency is 3.2 GHz, with boost up to 3.2 GHz. L3 cache: 8 MB (total). L2 cache: 256 kB (per core). Built on 14 nm process technology. Socket: LGA1151. Thermal design power (TDP): 65 Watt. Memory support: DDR4-2666. Passmark benchmark score: 5,858 points. Launch price was $193.

Xeon E3-1515M v5

The Xeon E3-1515M v5 is manufactured by Intel. It was released in 24 January 2016 (9 years ago). It is based on the Skylake-H (2015−2016) architecture. It features 4 cores and 8 threads. Base frequency is 2.8 GHz, with boost up to 3.7 GHz. L3 cache: 8 MB (total). L2 cache: 256 kB (per core). Built on 14 nm process technology. Socket: BGA1440. Thermal design power (TDP): 45 Watt. Memory support: DDR3, DDR4. Passmark benchmark score: 5,925 points. Launch price was $489.

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Processing Power

The Xeon E-2104G packs 4 cores / 4 threads, matching the Xeon E3-1515M v5's 4 cores. Boost clocks reach 3.2 GHz on the Xeon E-2104G versus 3.7 GHz on the Xeon E3-1515M v5 — a 14.5% clock advantage for the Xeon E3-1515M v5 (base: 3.2 GHz vs 2.8 GHz). The Xeon E-2104G uses the Coffee Lake-S WS (2018−2019) architecture (14 nm), while the Xeon E3-1515M v5 uses Skylake-H (2015−2016) (14 nm). In PassMark, the Xeon E-2104G scores 5,858 against the Xeon E3-1515M v5's 5,925 — a 1.1% lead for the Xeon E3-1515M v5. Both processors carry 8 MB (total) of L3 cache.

Feature	Xeon E-2104G	Xeon E3-1515M v5
Cores / Threads	4 / 4	4 / 8
Boost Clock	3.2 GHz	3.7 GHz+16%
Base Clock	3.2 GHz+14%	2.8 GHz
L3 Cache	8 MB (total)	8 MB (total)
L2 Cache	256 kB (per core)	256 kB (per core)
Process	14 nm	14 nm
Architecture	Coffee Lake-S WS (2018−2019)	Skylake-H (2015−2016)
PassMark	5,858	5,925+1%
Geekbench 6 Single	—	1,017

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Memory & Platform

The Xeon E-2104G uses the LGA1151 socket (PCIe 3.0), while the Xeon E3-1515M v5 uses BGA1440 (PCIe 3.0) — making them incompatible on the same motherboard.

Feature	Xeon E-2104G	Xeon E3-1515M v5
Socket	LGA1151	BGA1440
PCIe Generation	PCIe 3.0	PCIe 3.0
Max RAM Speed	—	DDR4-2133
Max RAM Capacity	—	64 GB
RAM Channels	—	2
ECC Support	—	Yes
PCIe Lanes	—	16

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Advanced Features

Virtualization: not specified (Xeon E-2104G) / VT-x, VT-d, EPT (Xeon E3-1515M v5). The Xeon E3-1515M v5 includes integrated graphics (Iris Pro Graphics P580), while the Xeon E-2104G requires a dedicated GPU. Primary use case: Xeon E3-1515M v5 targets Productivity. Direct competitor: Xeon E3-1515M v5 rivals Core i7-6700HQ.