Intel Core i5-8269U vs Intel Core i7-980X Comparison

The Intel Core i5-8269U and Intel Core i7-980X occupy the same overall performance tier, with average benchmark scores of 1748 and 1746 respectively, a negligible 0.1% difference. Despite the i7-980X offering six cores and twelve threads against the i5-8269U's four cores and eight threads, the newer mobile chip wins every single head-to-head benchmark in the data set. The i5-8269U edges out the i7-980X by 4.3% in Cinebench R15 multi-core (609 vs 584), and extends that lead to 4.4% in Cinebench R20 single-core (358 vs 343). The i7-980X, launched in 2010 on the Westmere architecture, simply cannot match the per-clock efficiency of the 2018 Kaby Lake-R part, despite its core-count advantage.

Head-to-Head Benchmarks

The benchmark data paints a consistent picture: the Intel Core i5-8269U wins all six recorded comparisons, but the margins are surprisingly narrow given the architectural gulf between the two. In Cinebench R15 multi-core, the i5-8269U scores 609 against the i7-980X's 584, a 4.3% advantage. The single-core R15 result shows a similar story, with the i5-8269U at 85 and the i7-980X at 82, a 3.7% gap. These are not blowout victories; they represent a modest but consistent edge for the newer chip.

Moving to Cinebench R20, the i5-8269U extends its lead slightly. The multi-core test shows 2538 for the i5-8269U versus 2434 for the i7-980X, again a 4.3% delta. Single-core R20 sees the i5-8269U at 358 and the i7-980X at 343, the largest relative margin in the entire comparison at 4.4%. This pattern suggests that the i5-8269U's advantage grows slightly as the workload becomes more dependent on single-thread performance, which makes sense given the older chip's lower boost clock of 3.60 GHz against the i5-8269U's 4.20 GHz.

The Cinebench R23 results reinforce the trend. Multi-core scores show 6044 for the i5-8269U versus 5797 for the i7-980X, a 4.3% difference. Single-core R23 shows 853 against 818, also a 4.3% gap. Across all six benchmarks, the i5-8269U wins by margins ranging from 3.7% to 4.4%, with no single test where the i7-980X manages to close the gap. The i7-980X does have one additional benchmark in its data set — Geekbench multi-core at 3247 and single-core at 659 — but no comparable Geekbench scores exist for the i5-8269U, so a direct head-to-head on that test is not possible.

The absolute scores reveal that both processors are firmly in the mid-range tier. The i5-8269U's average benchmark score of 1748 places it at the 41st percentile of all CPUs, and its nearest rivals include the AMD Ryzen 3 PRO 3200GE (1750, -0.1%), the i7-980X itself (1746, 0.1%), the Intel Core i5-6600 (1744, 0.3%), and the AMD Ryzen 3 4300U (1742, 0.4%). The i7-980X sits at the same 41st percentile with an average score of 1746, and its nearest rivals are the i5-8269U (1748, -0.1%), the i5-6600 (1744, 0.1%), the Ryzen 3 PRO 3200GE (1750, -0.2%), and the Ryzen 3 4300U (1742, 0.2%).

Where Each One Wins

The Intel Core i5-8269U wins every benchmark category in the data set, making it the clear choice for both multi-threaded and single-threaded workloads. Its Cinebench R20 multi-core score of 2538 and R23 multi-core score of 6044 demonstrate that the four-core, eight-thread configuration, boosted by a 4.20 GHz peak clock, can outperform the i7-980X's six-core, twelve-thread setup. This is particularly notable because the i7-980X has 50% more physical cores and 50% more threads, yet still loses by over 4% in every multi-core test. The i5-8269U's advantage in single-core tests, such as the 358 vs 343 in R20, indicates that applications relying on lightly-threaded performance will see a tangible benefit from the newer architecture.

The Intel Core i7-980X, despite losing all six head-to-head benchmarks, does not have a single category where it emerges victorious. Its only unique data point is the Geekbench scores — 3247 multi-core and 659 single-core — but without a matching i5-8269U result, these cannot be used to establish a win. However, the i7-980X does offer a triple-channel DDR3 memory bus and PCIe Gen 2 support, features absent from the i5-8269U's specification sheet. For workloads that depend on memory bandwidth rather than raw compute, the i7-980X's triple-channel configuration could provide an advantage that the Cinebench suite does not capture. The i7-980X also has an unlocked multiplier, allowing overclocking beyond its 3.60 GHz boost clock, which could narrow or reverse the performance gap in the hands of an enthusiast — though the data does not quantify this potential.

Architecture Differences

The two processors come from different eras and design philosophies. The Intel Core i5-8269U is built on a 14 nm process node, while the Intel Core i7-980X uses a 32 nm node. This process advantage is reflected in the die size: the i5-8269U measures 123 mm², while the i7-980X is nearly double at 239 mm² with 1,170 million transistors. The i5-8269U's smaller, denser design allows it to achieve higher clock speeds — 2.60 GHz base and 4.20 GHz boost — against the i7-980X's 3.33 GHz base and 3.60 GHz boost, all while consuming far less power: 28 W TDP versus 130 W TDP.

Cache configurations also differ significantly. Both chips have 64 KB of L1 cache per core and 256 KB of L2 cache per core, but the L3 cache is where the i7-980X takes a clear lead. The i7-980X offers 12 MB of shared L3 cache, double the i5-8269U's 6 MB. This larger cache pool could benefit the i7-980X in workloads with large working sets, though the benchmark data does not show this translating into a win. The i5-8269U compensates with a newer Kaby Lake architecture (codename Kaby Lake-R) versus the i7-980X's Westmere architecture (codename Gulftown).

Memory support is another differentiator. The i5-8269U supports DDR4 memory, while the i7-980X uses DDR3 with a triple-channel bus. The i5-8269U includes integrated Iris Pro Plus graphics, while the i7-980X has no integrated graphics at all, requiring a discrete GPU. The i5-8269U uses the Intel BGA 1356 socket and targets the mobile market segment, while the i7-980X uses Intel Socket 1366 and is a desktop part. The i7-980X is end-of-life and was released on 2010-03-15, while the i5-8269U is still active and was released on 2018-04-04. The i7-980X is an unlocked multiplier part (part number SLBUZ), while the i5-8269U is locked.

The Verdict

From the benchmark data alone, the Intel Core i5-8269U is the superior processor. It wins all six Cinebench comparisons with margins between 3.7% and 4.4%, despite having fewer cores and threads. Any user prioritizing raw compute performance in Cinebench-style workloads should choose the i5-8269U. Its higher boost clock of 4.20 GHz and more efficient 14 nm process give it an edge that the i7-980X's extra cores cannot overcome. The i5-8269U also offers integrated graphics, DDR4 memory support, and a dramatically lower TDP of 28 W versus 130 W, making it suitable for systems where power consumption and component integration matter.

The Intel Core i7-980X, however, is not without its arguments. Its 12 MB of L3 cache and triple-channel DDR3 memory bus could provide advantages in memory-intensive applications that the Cinebench suite does not measure. Its unlocked multiplier invites overclocking, potentially closing the gap with the i5-8269U or exceeding it, though the data does not verify this. The i7-980X also offers six physical cores, which could be beneficial in highly parallel workloads that scale beyond eight threads, even if the current benchmarks show the i5-8269U ahead by 4.3% in multi-core tests.

For a typical user, the i5-8269U is the pragmatic choice. It delivers a small but consistent performance lead across all measured tests, uses a fraction of the power, and includes features like integrated graphics and modern DDR4 memory support. The i7-980X is a legacy desktop part from 2010 that, while still competitive in average score (1746 vs 1748), cannot match the newer chip's efficiency or single-thread performance. The data suggests that architectural improvements over eight years have more than compensated for the i5-8269U's core-count disadvantage.

FAQ

Q: Which processor has a higher average benchmark score?

A: The Intel Core i5-8269U has an average benchmark score of 1748, while the Intel Core i7-980X scores 1746, a difference of 0.1%.

Q: How many cores and threads does each processor have?

A: The Intel Core i5-8269U has 4 cores and 8 threads, while the Intel Core i7-980X has 6 cores and 12 threads.

Q: What is the largest performance margin in the head-to-head benchmarks?

A: The largest margin is 4.4% in Cinebench R20 single-core, where the Intel Core i5-8269U scores 358 against the Intel Core i7-980X's 343.

Q: Does the Intel Core i7-980X win any benchmark in the data set?

A: No. The Intel Core i5-8269U wins all six head-to-head Cinebench tests, with the i7-980X recording zero wins.

Q: What are the TDP ratings for these processors?

A: The Intel Core i5-8269U has a TDP of 28 W, while the Intel Core i7-980X has a TDP of 130 W.

Q: Which processor has more L3 cache?

A: The Intel Core i7-980X has 12 MB of shared L3 cache, while the Intel Core i5-8269U has 6 MB of shared L3 cache.

Q: What memory types do they support?

A: The Intel Core i5-8269U supports DDR4 memory, while the Intel Core i7-980X supports DDR3 memory with a triple-channel bus.