Core i3-1005G1 vs Xeon E5640

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 i3-1005G1 vs Xeon E5640 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 i3-1005G1 vs Xeon E5640: Pros, Cons & Final Verdict

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

Core i3-1005G1

2019

Why buy it

✅+1.5% higher PassMark.
✅Draws 15W instead of 80W, a 65W reduction.
✅100+% more PCIe lanes (16 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with Intel UHD Graphics (Ice Lake), while Xeon E5640 needs a discrete GPU.

Trade-offs

❌Worse for gaming: lower average FPS than Xeon E5640 across 50 shared CPU benchmark tests.

Xeon E5640

2010

Why buy it

✅Better for gaming: +17.2% higher average FPS across 50 shared CPU benchmark tests.

Trade-offs

❌Lower PassMark (4,755 vs 4,827).
❌433.3% higher power demand at 80W vs 15W.
❌No integrated graphics, while Core i3-1005G1 can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Core i3-1005G1 better than Xeon E5640?

Not really, because they are built for different jobs. Xeon E5640 makes more sense for workstation-style multi-core throughput, while Core i3-1005G1 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 i3-1005G1 is the stronger fit. You are getting 1.5% better PassMark, backed by 2 cores and 4 threads.

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

Core i3-1005G1 still makes the most sense overall. Core i3-1005G1 comes in at an unclear MSRP at unclear MSRP versus unclear MSRP, and it still gives you 1.5% better PassMark.

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

Core i3-1005G1 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2019 vs 2010) and AVX-512 support for heavier modern compute workloads. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

Core i3-1005G1 vs Xeon E5640 Technical Specifications

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

Core i3-1005G1

The Core i3-1005G1 is manufactured by Intel. It was released in 1 August 2019 (6 years ago). It is based on the Ice Lake (Client) (2019) architecture. It features 2 cores and 4 threads. Base frequency is 1.2 GHz, with boost up to 3.4 GHz. L3 cache: 4 MB (total). L2 cache: 256K (per core). Built on 10 nm process technology. Socket: FCBGA1526. Thermal design power (TDP): 15 Watt. Memory support: DDR4. Passmark benchmark score: 4,827 points. Launch price was $281.

Xeon E5640

The Xeon E5640 is manufactured by Intel. It was released in 2015-01-01. Passmark benchmark score: 4,755 points. Launch price was $800.

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Processing Power

The Core i3-1005G1 is built on the Ice Lake (Client) (2019) architecture. In PassMark, the Core i3-1005G1 scores 4,827 against the Xeon E5640's 4,755 — a 1.5% lead for the Core i3-1005G1.

Feature	Core i3-1005G1	Xeon E5640
Cores / Threads	2 / 4	—
Boost Clock	3.4 GHz	—
Base Clock	1.2 GHz	—
L3 Cache	4 MB (total)	—
L2 Cache	256K (per core)	—
Process	10 nm	—
Architecture	Ice Lake (Client) (2019)	—
PassMark	4,827+2%	4,755
Cinebench R23 Multi	2,319	—
Geekbench 6 Single	603	—
Geekbench 6 Multi	2,605	—

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Advanced Features

Virtualization: VT-x / VT-d / EPT (Core i3-1005G1) / not specified (Xeon E5640). The Core i3-1005G1 includes integrated graphics (Intel UHD Graphics (Ice Lake)), while the Xeon E5640 requires a dedicated GPU. Primary use case: Core i3-1005G1 targets Thin-and-light.