Core i3-10305T vs Xeon E3-1585 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.

Core i3-10305T vs Xeon E3-1585 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.

Core i3-10305T vs Xeon E3-1585 v5: Pros, Cons & Final Verdict

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

Core i3-10305T

2021

Why buy it

✅+1.2% higher PassMark.
✅Draws 35W instead of 65W, a 30W reduction.

Trade-offs

❌Worse for gaming: lower average FPS than Xeon E3-1585 v5 across 50 shared CPU benchmark tests.
❌Launch MSRP is still $143 MSRP, while Xeon E3-1585 v5 mostly shows up through inconsistent older-market listings.

Xeon E3-1585 v5

2016

Why buy it

✅Better for gaming: +6.6% higher average FPS across 50 shared CPU benchmark tests.

Trade-offs

❌Lower PassMark (8,408 vs 8,512).
❌85.7% higher power demand at 65W vs 35W.

Quick Answers

So, is Core i3-10305T better than Xeon E3-1585 v5?

Not really, because they are built for different jobs. Xeon E3-1585 v5 makes more sense for workstation-style multi-core throughput, while Core i3-10305T is the more practical desktop choice for gaming, platform cost, and everyday use.

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

For streaming, content creation, and heavier multitasking, Core i3-10305T is the stronger fit. You are getting 1.2% better PassMark, backed by 4 cores and 8 threads.

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

Core i3-10305T is the better buy right now. Core i3-10305T comes in at an unclear MSRP at $143 MSRP versus unclear MSRP, and it still gives you 1.2% better PassMark. The compromise is that Xeon E3-1585 v5 is still the better pure gaming CPU with a 6.6% average FPS lead across 50 shared CPU game tests in our data. It is also 100.0% better value on MSRP (59.5 vs 0.0 PassMark/$), 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 i3-10305T makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2021 vs 2016) 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 i3-10305T vs Xeon E3-1585 v5 Technical Specifications

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

Core i3-10305T

The Core i3-10305T 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 GHz, with boost up to 4 GHz. L3 cache: 8 MB (total). L2 cache: 256 kB (per core). Built on 14 nm process technology. Socket: LGA1200. Thermal design power (TDP): 35 Watt. Memory support: DDR4-2666. Passmark benchmark score: 8,512 points. Launch price was $143.

Xeon E3-1585 v5

The Xeon E3-1585 v5 is manufactured by Intel. It was released in 31 May 2016 (9 years ago). It is based on the Skylake-H (2015−2016) architecture. It features 4 cores and 8 threads. Base frequency is 3.5 GHz, with boost up to 3.9 GHz. L3 cache: 8 MB (total). L2 cache: 256 kB (per core). Built on 14 nm process technology. Socket: BGA1440. Thermal design power (TDP): 65 Watt. Memory support: DDR3L,LPDDR3 1600 MHz, DDR4 2133 MHz at 1.2V. Passmark benchmark score: 8,408 points. Launch price was $556.

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Processing Power

Both the Core i3-10305T and Xeon E3-1585 v5 share an identical 4-core/8-thread configuration. Boost clocks reach 4 GHz on the Core i3-10305T versus 3.9 GHz on the Xeon E3-1585 v5 — a 2.5% clock advantage for the Core i3-10305T (base: 3 GHz vs 3.5 GHz). The Core i3-10305T uses the Comet Lake-R (2021) architecture (14 nm), while the Xeon E3-1585 v5 uses Skylake-H (2015−2016) (14 nm). In PassMark, the Core i3-10305T scores 8,512 against the Xeon E3-1585 v5's 8,408 — a 1.2% lead for the Core i3-10305T. Both processors carry 8 MB (total) of L3 cache.

Feature	Core i3-10305T	Xeon E3-1585 v5
Cores / Threads	4 / 8	4 / 8
Boost Clock	4 GHz+3%	3.9 GHz
Base Clock	3 GHz	3.5 GHz+17%
L3 Cache	8 MB (total)	8 MB (total)
L2 Cache	256 kB (per core)	256 kB (per core)
Process	14 nm	14 nm
Architecture	Comet Lake-R (2021)	Skylake-H (2015−2016)
PassMark	8,512+1%	8,408

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Memory & Platform

The Core i3-10305T uses the LGA1200 socket (PCIe 3.0), while the Xeon E3-1585 v5 uses BGA1440 (PCIe 5.0) — making them incompatible on the same motherboard.