Core i5-8269U vs Core i7-990X

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 i5-8269U vs Core i7-990X 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 i5-8269U vs Core i7-990X: Pros, Cons & Final Verdict

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

Core i5-8269U

2018

Why buy it

✅Draws 28W instead of 130W, a 102W reduction.

Trade-offs

❌Lower PassMark (7,111 vs 7,135).
❌Smaller total L3 cache (6 MB vs 12 MB).

Core i7-990X

2011

Why buy it

✅+0.3% higher PassMark.
✅+100% larger total L3 cache (12 MB vs 6 MB).

Trade-offs

❌Launch MSRP is still $999 MSRP, while Core i5-8269U mostly shows up through inconsistent older-market listings.
❌364.3% higher power demand at 130W vs 28W.

Quick Answers

So, is Core i5-8269U better than Core i7-990X?

It depends on what you want from the system. For gaming, Core i5-8269U is ahead with a 2.6% average FPS lead across 50 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Core i7-990X pulls ahead with 0.3% better PassMark. Core i7-990X also has the bigger cache pool with 100% larger total L3 cache (12 MB vs 6 MB).

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

For streaming, content creation, and heavier multitasking, Core i7-990X is the stronger fit. You are getting 0.3% better PassMark, backed by 6 cores and 12 threads. It also has the larger cache pool with 100% larger total L3 cache (12 MB vs 6 MB).

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

Core i5-8269U is still the much better call for a fresh build. Core i5-8269U comes in at an unclear MSRP at unclear MSRP versus $999 MSRP, and it still gives you a 2.6% average FPS lead across 50 shared CPU game tests in our data. Core i7-990X only looks stronger on raw value math because it is extremely cheap, but that usually means used-market pricing on an obsolete 2011 platform. Even with 100.0% better value on paper (7.1 vs 0.0 PassMark/$), it really only makes sense as a cheap stopgap or a niche existing-platform option for someone already on LGA1366.

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

Core i5-8269U makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2018 vs 2011). That makes it the safer long-term bet.

Core i5-8269U vs Core i7-990X Technical Specifications

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

Core i5-8269U

The Core i5-8269U is manufactured by Intel. It was released in 5 April 2018 (7 years ago). It is based on the Coffee Lake-U (2018−2019) architecture. It features 4 cores and 8 threads. Base frequency is 2.6 GHz, with boost up to 4.2 GHz. L3 cache: 6 MB (total). L2 cache: 256K (per core). Built on 14 nm process technology. Socket: FCBGA1528. Thermal design power (TDP): 28 Watt. Memory support: DDR4. Passmark benchmark score: 7,111 points. Launch price was $320.

Core i7-990X

The Core i7-990X is manufactured by Intel. It was released in 24 February 2011 (14 years ago). It is based on the Gulftown (2010−2011) architecture. It features 6 cores and 12 threads. Base frequency is 3.46 GHz, with boost up to 3.73 GHz. L3 cache: 12 MB (total). L2 cache: 256 kB (per core). Built on 32 nm process technology. Socket: LGA1366. Thermal design power (TDP): 130 Watt. Memory support: DDR3. Passmark benchmark score: 7,135 points. Launch price was $1,104.

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Processing Power

The Core i5-8269U packs 4 cores / 8 threads, while the Core i7-990X offers 6 cores / 12 threads — the Core i7-990X has 2 more cores. Boost clocks reach 4.2 GHz on the Core i5-8269U versus 3.73 GHz on the Core i7-990X — a 11.9% clock advantage for the Core i5-8269U (base: 2.6 GHz vs 3.46 GHz). The Core i5-8269U uses the Coffee Lake-U (2018−2019) architecture (14 nm), while the Core i7-990X uses Gulftown (2010−2011) (32 nm). In PassMark, the Core i5-8269U scores 7,111 against the Core i7-990X's 7,135 — a 0.3% lead for the Core i7-990X. L3 cache: 6 MB (total) on the Core i5-8269U vs 12 MB (total) on the Core i7-990X.

Feature	Core i5-8269U	Core i7-990X
Cores / Threads	4 / 8	6 / 12+50%
Boost Clock	4.2 GHz+13%	3.73 GHz
Base Clock	2.6 GHz	3.46 GHz+33%
L3 Cache	6 MB (total)	12 MB (total)+100%
L2 Cache	256K (per core)	256 kB (per core)
Process	14 nm-56%	32 nm
Architecture	Coffee Lake-U (2018−2019)	Gulftown (2010−2011)
PassMark	7,111	7,135

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Memory & Platform

The Core i5-8269U uses the FCBGA1528 socket (PCIe 3.0), while the Core i7-990X uses LGA1366 (PCIe 2.0) — making them incompatible on the same motherboard.