Intel Core i5-1035G4 vs Intel Core i5-8305G Comparison

Head-to-Head Benchmarks

The benchmark data presents a remarkably consistent picture for these two mobile processors. Across all six recorded Cinebench comparisons, the Intel Core i5-1035G4 takes the win, with the Intel Core i5-8305G trailing by nearly identical margins in every test. The largest advantage for the i5-1035G4 comes in the Cinebench R15 single-core test, where it scores 91 against 81, a a delta of 12.3%. The multicore version of that same test shows a 12.1% lead, with the i5-1035G4 scoring 648 versus 578.

Moving to newer workloads, the pattern holds. In Cinebench R20, the i5-1035G4 posts 2703 multicore and 381 single-core,cores, while the i5-8305G manages 2410 and 340 respectively. That works out to a 12.2% advantage in multicore and 12.1% in single-core. The most demanding test in the database, Cinebench R23, shows the i5-1035G4 at 6436 multicore and 908 single-core, against 5739 and 810 for the i5-8305G. Both deltas sit at 12.1%.

What is notable here is the uniformity of the gap. The i5-1035G4 does not merely edge ahead in one workload and fall back in another; it holds a steady double-digit lead across every recorded benchmark. The average benchmark score for the i5-1035G4 is 1861, while the i5-8305G sits at ightly lower 1831. Both processors land at the 42nd percentile among all CPUs in the database, meaning they occupy a similar overall performance tier, but the i5-1035G4 is consistently the faster part within that tier.

The i5-8305G does have additional Geekbench entries in the database, with a multicore score of 3536 and a single-core score of 1150, but no comparable Geekebench results exist for the i5-1035G4 in the recorded data, so a direct head-to-head on that test cannot be established. The Cinebench suite alone tells the story: six wins for the i5-1035G4, zero for the i5-8305G.

FAQ

Q: Which processor has the higher boost clock?

A: The Intel Core i5-8305G has a boost clock of 3.80 GHz, while the Intel Core i5-1035G4 boosts to 3.70 GHz. Despite the 0.10 GHz disadvantage, the the i5-1035G4 still wins every Cinebench benchmark in the head-to-head data.

Q: How does the i5-1035G4 compare to its nearest rivals in the database?

A: The i5-1035G4 has an average benchmark score of 1861,, which places it 0.9% ahead of the Intel Core i5-7600 (1844) and 0.3% behind the Intel Core i3-9350K (1867). It also trails the Intel Xeon E5-1630 v4 (1869) by 0.4% and the Intel Xeon E3-1545M v5 (1879) by 0.9%.

Q: What does the percentile ranking indicate for these two CPUs?

A: Both the i5-1035G4 and the i5-8305G sit at the 42nd percentile among all CPUs in the database. This means they outperform roughly 42% of recorded processors, placing them in the mid-range of the overall performance distribution despite their different architectures.

Q: Is the i5-8305G competitive with any of the i5-1035G4's nearest rivals?

A: The i5-8305G has an average benchmark score of 1831, which is essentially tied with the AMD Ryzen 5 4600U (1832, 0% delta) and the Intel Xeon E5-2608L v3 (1830, 0% delta). It sits 0.1% ahead of the Intel Xeon D-1537 (1830) and 0.2% ahead of the Intel Core i7-4790S (1827).

Q: Which processor has the larger L1 cache per core?

A: The Intel Core i5-1035G4 has 80 KB of L1 cache per core, while the Intel Core i5-8305G has 64 KB per core. Both processors share the same L2 cache size at 256 KB per core and the same 6 MB shared L3 cache.

Q: Are there any benchmarks where the i5-8305G wins?

A: In the recorded head-to-head benchmark data, no. The The i5-1035G4 wins all six Cinebench comparisons, with deltas ranging from 12.1% to 12.3%. The i5-8305G's Geekbench scores exist in the database, but no comparable Geekbench results are recorded for the i5-1035G4, so those cannot be counted as head-to-head wins.

Where Each One Wins

The Intel Core i5-1035G4 is the clear choice for any workload captured in the Cinebench suite. Its lead is consistent across both single-threaded and multi-threaded tests, making it the stronger option for CPU-bound tasks like rendering, video encoding, and general productivity. The 12.1% to 12.3% advantage across all six tests suggests that the i5-1035G4's architectural improvements deliver a tangible performance uplift that is not limited to a specific workload type.

The Intel Core i5-8305G does not win any recorded benchmark, but it does offer a different set of characteristics that may matter in certain use cases. Its integrated graphics are the Radeon RX Vega M GL, a discrete-class GPU solution, whereas the i5-1035G4 relies on Iris Plus graphics. For users who prioritize GPU compute or gaming without a dedicated graphics card, the i5-8305G's integrated solution could be the more relevant option, even though the CPU benchmarks do not favor it.

The i5-8305G also has a higher base clock at 2.80 GHz versus 1.10 GHz for the i5-1035G4. In short, bursty workloads that rely on base clock behavior rather than sustained boost could see the i5-8305G respond more quickly, though the benchmark data does not isolate that scenario. For sustained multi-core rendering, the i5-1035G4's higher boost clock and newer architecture win out.

Specification Differences

The two processors differ in several key specifications beyond their benchmark scores. The Intel Core i5-1035G4 has a base clock of 1.10 GHz and a boost clock of 3.70 GHz, while the Intel Core i5-8305G runs at 2.80 GHz base and 3..80 GHz boost. The thermal design power (TDP) differs substantially: the the i5-1035G4 is rated at 15 watts, while the i5-8305G draws 65 watts. This makes the i5-1035G4 a far more power-efficient part on paper.

The sockets are different as well. The i5-1035G4 uses Intel BGA 1526, while the i5-8305G uses Intel BGA 2270. The i5-1035G4 has a die size of 123 mm², while no die size is recorded for the i5-8305G. The i5-1035G4 supports PCIe Gen 3, while no PCIe generation is listed for the i5-8305G. Memory bandwidth is listed at 51.2 GB/s for the i5-1035G4, but no memory bandwidth figure exists for the i5-8305G. Both processors support DDR4 memory and do not support ECC memory. Neither has an unlocked multiplier.

The release dates differ by roughly a year and a half. The i5-8305G was released in January 2018, while the i5-1035G4 arrived in July 2019. Both are listed as Active in production status. The i5-1035G4 has a recorded part number (SRGKK), while no part number is listed for the i5-8305G.

Architecture Differences

The architectural gap between these two processors is significant. The Intel Core i5-1035G4 is built on Ice Lake architecture, specifically the Ice Lake-U codename, and belongs to the Core i5 (Sunny Cove-U) generation. It is manufactured on Intel's 10 nm process node. The Intel Core i5-8305G, by contrast, uses Kaby Lake architecture with the Kaby Lake G codename, belonging to the Core i5 (Kaby Lake-G) generation, and is built on the older 14 nm process node.

The cache hierarchy differs in the L1 tier. The i5-1035G4 has 80 KB of L1 cache per core, while the i5-8305G has 64 KB per core. Both share 256 KB of L2 per core and 6 MB of shared L3 cache. The larger L1 cache on the i5-1035G4 likely contributes to its consistent single-core advantage in the benchmarks.

The integrated graphics represent a major architectural divergence. The i5-1035G4 features Iris Plus graphics, while the i5-8305G features Radeon RX Vega M GL graphics. This reflects a different design philosophy: the i5-8305G pairs Intel CPU cores with AMD GPU silicon, a hybrid approach that was unusual for the time, while the i5-1035G4 uses Intel's own integrated graphics solution.

The process node difference (10 nm versus 14 nm) helps explain the power and efficiency gap. The i5-1035G4 achieves higher benchmark scores while being rated for 15 watts TDP, compared to the i5-8305G's 65 watts. The newer 10 nm process and Sunny Cove cores deliver better performance per watt, which is reflected in the benchmark deltas. The i5-8305G compensates with a higher base clock and a discrete-class GPU, but the CPU-side architecture is clearly older and less efficient.