Core i3-10305 vs Xeon E3-1275 v6

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.

Core i3-10305 vs Xeon E3-1275 v6 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.

Core i3-10305 vs Xeon E3-1275 v6: Pros, Cons & Final Verdict

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

Core i3-10305

2021

Why buy it

✅Costs $350 less on MSRP ($149 MSRP vs $499 MSRP).
✅Delivers 235.2% more PassMark for each dollar spent, at 61.8 vs 18.4 PassMark/$ ($149 MSRP vs $499 MSRP).
✅Draws 65W instead of 73W, a 8W reduction.
✅100+% more PCIe lanes (16 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with UHD Graphics 630, while Xeon E3-1275 v6 needs a discrete GPU.

Trade-offs

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

Xeon E3-1275 v6

2017

Why buy it

Trade-offs

❌Lower PassMark (9,202 vs 9,210).
❌Lower PassMark per dollar, at 18.4 vs 61.8 PassMark/$ ($499 MSRP vs $149 MSRP).
❌No integrated graphics, while Core i3-10305 can still boot and troubleshoot without a discrete GPU.
❌No boxed cooler included, unlike Core i3-10305.

Quick Answers

So, is Core i3-10305 better than Xeon E3-1275 v6?

Not really, because they are built for different jobs. Xeon E3-1275 v6 makes more sense for workstation-style multi-core throughput, while Core i3-10305 is the more practical desktop choice for gaming, platform cost, and everyday use.

Which one is better for gaming?

If gaming is the priority, Core i3-10305 is the better pick. According to our tests, it delivers 2.7% 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 i3-10305 is the stronger fit. You are getting 0.1% better PassMark, backed by 4 cores and 8 threads.

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

Core i3-10305 is the better buy right now. Core i3-10305 comes in $350 cheaper on MSRP at $149 MSRP versus $499 MSRP, and it still gives you a 2.7% average FPS lead across 50 shared CPU game tests in our data. It is also 235.2% better value on MSRP (61.8 vs 18.4 PassMark/$), so you are getting the faster CPU without taking a value hit on paper.

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

Core i3-10305 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2021 vs 2017) and more multi-core headroom with 4 cores / 8 threads instead of 4/8. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

Core i3-10305 vs Xeon E3-1275 v6 Technical Specifications

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

Core i3-10305

The Core i3-10305 is manufactured by Intel. It was released in 16 March 2021 (4 years ago). It is based on the Comet Lake-R (2021) architecture. It features 4 cores and 8 threads. Base frequency is 3.8 GHz, with boost up to 4.5 GHz. L3 cache: 8 MB (total). L2 cache: 256 kB (per core). Built on 14 nm process technology. Socket: LGA1200. Thermal design power (TDP): 65 Watt. Memory support: DDR4-2666. Passmark benchmark score: 9,210 points. Launch price was $149.

Xeon E3-1275 v6

The Xeon E3-1275 v6 is manufactured by Intel. It was released in 28 March 2017 (8 years ago). It is based on the Kaby Lake (2016−2019) architecture. It features 4 cores and 8 threads. Base frequency is 3.8 GHz, with boost up to 4.2 GHz. L3 cache: 8 MB. L2 cache: 1 MB. Built on 14 nm process technology. Socket: LGA1151. Thermal design power (TDP): 73 Watt. Memory support: DDR4-2400, DDR3L-1866. Passmark benchmark score: 9,202 points. Launch price was $339.

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Processing Power

Both the Core i3-10305 and Xeon E3-1275 v6 share an identical 4-core/8-thread configuration. Boost clocks reach 4.5 GHz on the Core i3-10305 versus 4.2 GHz on the Xeon E3-1275 v6 — a 6.9% clock advantage for the Core i3-10305 (base: 3.8 GHz vs 3.8 GHz). The Core i3-10305 uses the Comet Lake-R (2021) architecture (14 nm), while the Xeon E3-1275 v6 uses Kaby Lake (2016−2019) (14 nm). In PassMark, the Core i3-10305 scores 9,210 against the Xeon E3-1275 v6's 9,202 — a 0.1% lead for the Core i3-10305. L3 cache: 8 MB (total) on the Core i3-10305 vs 8 MB on the Xeon E3-1275 v6.

Feature	Core i3-10305	Xeon E3-1275 v6
Cores / Threads	4 / 8	4 / 8
Boost Clock	4.5 GHz+7%	4.2 GHz
Base Clock	3.8 GHz	3.8 GHz
L3 Cache	8 MB (total)	8 MB
L2 Cache	256 kB (per core)	1 MB+300%
Process	14 nm	14 nm
Architecture	Comet Lake-R (2021)	Kaby Lake (2016−2019)
PassMark	9,210	9,202
Geekbench 6 Single	1,536	—

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Memory & Platform

The Core i3-10305 uses the LGA1200 socket (PCIe 3.0), while the Xeon E3-1275 v6 uses LGA1151 (PCIe 3.0) — making them incompatible on the same motherboard.

Feature	Core i3-10305	Xeon E3-1275 v6
Socket	LGA1200	LGA1151
PCIe Generation	PCIe 3.0	PCIe 3.0
Max RAM Speed	DDR4-2666	—
Max RAM Capacity	128 GB	—
RAM Channels	2	—
ECC Support	No	—
PCIe Lanes	16	—

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Advanced Features

Virtualization: VT-x, VT-d (Core i3-10305) / not specified (Xeon E3-1275 v6). The Core i3-10305 includes integrated graphics (UHD Graphics 630), while the Xeon E3-1275 v6 requires a dedicated GPU.

Feature	Core i3-10305	Xeon E3-1275 v6
Integrated GPU	Yes	—
IGPU Model	UHD Graphics 630	—
Unlocked	No	—
AVX-512	No	—
Virtualization	VT-x, VT-d	—

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Value Analysis

At launch, the Core i3-10305 was priced at $149, while the Xeon E3-1275 v6 came in at $499. On launch pricing ($149 vs $499), Core i3-10305 was $350 cheaper. In terms of value on MSRP (PassMark points per dollar), the Core i3-10305 delivers 61.8 pts/$ vs 18.4 pts/$ for the Xeon E3-1275 v6 — making the Core i3-10305 the 108.1% better value option.

Feature	Core i3-10305	Xeon E3-1275 v6
MSRP	$149-70%	$499
Performance per Dollar	61.8+236%	18.4
Release Date	2021	2017

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