Core i5-1145G7 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 i5-1145G7 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 i5-1145G7 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 i5-1145G7

2020

Why buy it

✅+0.7% higher PassMark.
✅Draws 28W instead of 73W, a 45W reduction.
✅100+% more PCIe lanes (16 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with Iris Xe Graphics (80 EU), while Xeon E3-1275 v6 needs a discrete GPU.

Trade-offs

❌Worse for gaming: lower average FPS than Xeon E3-1275 v6 across 29 shared CPU benchmark tests.

Xeon E3-1275 v6

2017

Why buy it

✅Better for gaming: +4.3% higher average FPS across 29 shared CPU benchmark tests.

Trade-offs

❌Lower PassMark (9,202 vs 9,266).
❌Launch MSRP is still $499 MSRP, while Core i5-1145G7 mostly shows up through inconsistent older-market listings.
❌160.7% higher power demand at 73W vs 28W.
❌No integrated graphics, while Core i5-1145G7 can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Core i5-1145G7 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 i5-1145G7 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 i5-1145G7 is the stronger fit. You are getting 0.7% better PassMark, backed by 4 cores and 8 threads.

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

Core i5-1145G7 is still the faster CPU overall, but Xeon E3-1275 v6 is easier to justify if budget matters more than peak performance. Core i5-1145G7 comes in at an unclear MSRP at unclear MSRP versus $499 MSRP, and it still gives you 0.7% better PassMark. The compromise is that Xeon E3-1275 v6 is still the better pure gaming CPU with a 4.3% average FPS lead across 29 shared CPU game tests in our data. Xeon E3-1275 v6 is also 100.0% better value on MSRP (18.4 vs 0.0 PassMark/$), which is why it can still make sense for tighter-budget builds on paper.

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

Core i5-1145G7 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2020 vs 2017), more multi-core headroom with 4 cores / 8 threads instead of 4/8, 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 i5-1145G7 vs Xeon E3-1275 v6 Technical Specifications

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

Core i5-1145G7

The Core i5-1145G7 is manufactured by Intel. It was released in 2 September 2020 (5 years ago). It is based on the Tiger Lake-UP3 (2020−2021) architecture. It features 4 cores and 8 threads. Base frequency is 2.6 GHz, with boost up to 4.4 GHz. L3 cache: 8 MB (total). L2 cache: 1.25 MB (per core). Built on 10 nm SuperFin process technology. Socket: FCBGA1449. Thermal design power (TDP): 28 Watt. Memory support: DDR4. Passmark benchmark score: 9,266 points. Launch price was $309.

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.

⚡

Processing Power

Both the Core i5-1145G7 and Xeon E3-1275 v6 share an identical 4-core/8-thread configuration. Boost clocks reach 4.4 GHz on the Core i5-1145G7 versus 4.2 GHz on the Xeon E3-1275 v6 — a 4.7% clock advantage for the Core i5-1145G7 (base: 2.6 GHz vs 3.8 GHz). The Core i5-1145G7 uses the Tiger Lake-UP3 (2020−2021) architecture (10 nm SuperFin), while the Xeon E3-1275 v6 uses Kaby Lake (2016−2019) (14 nm). In PassMark, the Core i5-1145G7 scores 9,266 against the Xeon E3-1275 v6's 9,202 — a 0.7% lead for the Core i5-1145G7. L3 cache: 8 MB (total) on the Core i5-1145G7 vs 8 MB on the Xeon E3-1275 v6.

Feature	Core i5-1145G7	Xeon E3-1275 v6
Cores / Threads	4 / 8	4 / 8
Boost Clock	4.4 GHz+5%	4.2 GHz
Base Clock	2.6 GHz	3.8 GHz+46%
L3 Cache	8 MB (total)	8 MB
L2 Cache	1.25 MB (per core)+25%	1 MB
Process	10 nm SuperFin-29%	14 nm
Architecture	Tiger Lake-UP3 (2020−2021)	Kaby Lake (2016−2019)
PassMark	9,266	9,202
Cinebench R23 Multi	5,195	—
Geekbench 6 Single	1,653	—
Geekbench 6 Multi	4,764	—

🧠

Memory & Platform

The Core i5-1145G7 uses the FCBGA1449 socket (PCIe 4.0), while the Xeon E3-1275 v6 uses LGA1151 (PCIe 3.0) — making them incompatible on the same motherboard.

Feature	Core i5-1145G7	Xeon E3-1275 v6
Socket	FCBGA1449	LGA1151
PCIe Generation	PCIe 4.0+33%	PCIe 3.0
Max RAM Speed	DDR4-3200	—
Max RAM Capacity	64 GB	—
RAM Channels	2	—
ECC Support	No	—
PCIe Lanes	16	—

🔧

Advanced Features

Virtualization: VT-x, VT-d, EPT (Core i5-1145G7) / not specified (Xeon E3-1275 v6). The Core i5-1145G7 includes integrated graphics (Iris Xe Graphics (80 EU)), while the Xeon E3-1275 v6 requires a dedicated GPU. Primary use case: Core i5-1145G7 targets Business. Direct competitor: Core i5-1145G7 rivals Core i5-1135G7.