Intel Core i5-4670 vs Intel Core i5-8365UE Comparison

Head-to-Head Benchmarks

The benchmark data shows a remarkably consistent, though narrow, advantage for the Intel Core i5-8365UE across every Cinebench test in the comparison. The i5-8365UE wins all six recorded head-to-head matchups, with the largest single margin being a 1.5% lead in the Cinebench R20 single-core test. In that test, the i5-8365UE scores 279 points against the i5-4670's 275 points.

The multi-core results tell a similar story with slightly smaller margins. In Cinebench R15 multi-core, the i5-8365UE posts a score of 474 versus 469 for the i5-4670, a 1.1% difference. The Cinebench R20 multi-core test shows the same 1.1% gap, with scores of 1978 and 1957 respectively. The Cinebench R23 multi-core test follows the pattern exactly: 4710 for the i5-8365UE and 4660 for the i5-4670, again a 1.1% delta.

Single-core performance is where the newer chip shows its strongest edge. Beyond the R20 result, the Cinebench R23 single-core test shows the i5-8365UE at 665 points versus 657 for the i5-4670, a 1.2% advantage. The only tie in the entire comparison occurs in Cinebench R15 single-core, where both processors record identical scores of 66 points. That dead heat is notable because the i5-4670 has a much higher base clock, yet the i5-8365UE's boost clock, combined with architectural improvements, allows it to match or exceed the older desktop part in every scenario.

Looking at the broader database context, the i5-8365UE carries an average benchmark score of 1362, placing it at the 36th percentile among all CPUs. Its closest rivals include the Intel Core i5-6500T with an identical average score of 1362 (0% delta), the Intel Core i7-3820QM at 1366 (-0.3%), and the Intel Xeon D-1521 at 1367 (-0.4%). The i5-4670 posts an average benchmark score of 1347, also at the 36th percentile, with its nearest rivals being the Intel Core i5-7400T at 1348 (-0.1%), the Intel Xeon W-2104 at 1350 (-0.2%), and the Intel Core i5-4590T at 1340 (0.5%). The 15-point gap in average score between these two processors is small, but it consistently favors the i5-8365UE across all individual workload tests.

One striking observation is that the i5-4670, despite being a desktop part with an 84W TDP and a 3.40 GHz base clock, cannot overcome the i5-8365UE's architectural efficiency. The i5-8365UE achieves its wins while operating at a 15W TDP, a dramatic power envelope difference that does not translate into any performance disadvantage in these benchmarks.

The Verdict

The data points to a clear, though modest, performance hierarchy: the Intel Core i5-8365UE is the faster processor in every measured workload, winning all six head-to-head benchmark comparisons. The margins are small, ranging from 0% to 1.5%, but they are consistent across single-core and multi-core tests, and across three different Cinebench versions (R15, R20, and R23).

For users running Cinebench-style rendering or multi-threaded productivity tasks, the i5-8365UE offers a measurable, if not dramatic, improvement. The 1.1% multi-core advantage in R15, R20, and R23 means that a workload taking 100 seconds on the i5-4670 would take roughly 99 seconds on the i5-8365UE. That is not a transformative upgrade, but it is a real one.

The single-core results are slightly more favorable to the i5-8365UE. With a 1.5% lead in R20 and a 1.2% lead in R23, the newer chip demonstrates better per-thread performance, which matters for applications that are not fully multi-threaded. The identical R15 single-core score of 66 for both chips suggests that the older test is not sensitive enough to distinguish between them, but the newer R20 and R23 tests reveal the i5-8365UE's edge.

Who should choose which? The i5-8365UE is the logical pick for anyone prioritizing performance, even by a narrow margin, and especially for mobile or low-power systems where its 15W TDP is a major advantage. The i5-4670, with its 84W TDP, is a desktop part that consumes over five times the power yet delivers lower scores in every test. There is no benchmark evidence in the database that favors the i5-4670. The only scenario where the i5-4670 might be preferable is if a system requires the LGA 1150 socket or DDR3 memory support, since those are platform-level constraints that the data cannot override. Performance-wise, the i5-8365UE is the winner outright.

Architecture Differences

The two processors come from different architectural eras within Intel's lineup. The i5-8365UE is built on Whiskey Lake, specifically the Whiskey Lake-U variant, using a 14 nm process node. The i5-4670 is a Haswell part, fabricated on a 22 nm node. This process shrink is a fundamental difference: the 14 nm node allows the i5-8365UE to pack more efficient transistors into a lower power envelope.

Core counts are identical at 4 cores, but threading differs significantly. The i5-8365UE supports 8 threads via Hyper-Threading, while the i5-4670 is limited to 4 threads with no Hyper-Threading. This is a major architectural distinction that helps explain why the i5-8365UE can match or exceed the i5-4670 in multi-core tests despite a much lower base clock of 1.60 GHz versus 3.40 GHz.

Cache hierarchies are largely the same on paper. Both chips have 64 KB of L1 cache per core and 256 KB of L2 cache per core. Both share 6 MB of L3 cache. The i5-4670's transistor count is listed at 1,400 million on a 177 mm² die, while the i5-8365UE's transistor count and die size are not recorded in the database, so a direct comparison of those physical characteristics is not possible from the available data.

The integrated graphics differ as well. The i5-8365UE features UHD Graphics 620, while the i5-4670 comes with Intel HD 4600. Both are integrated solutions, but they belong to different generations and performance tiers, with the UHD 620 being the newer implementation.

The memory support also reflects their architectural split. The i5-8365UE supports DDR4 memory with a listed bandwidth of 38.4 GB/s, while the i5-4670 supports DDR3 with no bandwidth figure recorded. Both use dual-channel memory buses. The i5-8365UE also specifies PCIe Gen 3 with 16 lanes (CPU only), whereas the i5-4670 simply lists PCIe Gen 3 without lane details.

Specification Differences

The specification sheet reveals stark contrasts between these two processors. The i5-8365UE has a base clock of 1600.00 MHz and a boost clock of 4.10 GHz. The i5-4670 runs at a base clock of 3400.00 MHz and boosts to 3.80 GHz. Despite the i5-8365UE's much lower base clock, its higher boost clock of 4.10 GHz versus 3.80 GHz helps it win the single-core tests.

Power consumption is the most dramatic difference. The i5-8365UE is rated at 15W TDP, while the i5-4670 is rated at 84W TDP. This is a 5.6x difference in thermal design power, yet it does not hinder the i5-8365UE's performance in these benchmarks.

The socket types are incompatible. The i5-8365UE uses Intel BGA 1528, a soldered mobile socket, while the i5-4670 uses Intel Socket 1150, a desktop LGA socket. This means they cannot be swapped into the same motherboard.

Memory support differs by generation: DDR4 for the i5-8365UE and DDR3 for the i5-4670. The i5-8365UE records a memory bandwidth of 38.4 GB/s; the i5-4670 has no bandwidth figure in the database. Neither chip supports ECC memory. Both have locked multipliers, so neither can be overclocked via multiplier adjustment.

The market segments are different: the i5-8365UE is a Mobile part, while the i5-4670 is a Desktop part. The i5-8365UE remains in production with an Active status and was released on 2019-04-15. The i5-4670 has no production status listed and was released on 2013-06-01. The i5-8365UE carries a launch MSRP of $297; no launch MSRP is recorded for the i5-4670. The part numbers differ as well: SRFDU for the i5-8365UE and SR14D for the i5-4670.

FAQ

Q: Which processor is faster in multi-core benchmarks?

A: The Intel Core i5-8365UE wins all three multi-core tests: Cinebench R15 (474 vs 469), R20 (1978 vs 1957), and R23 (4710 vs 4660), each by a 1.1% margin.

Q: How do the single-core scores compare?

A: The i5-8365UE leads in single-core performance as well, with a 0% delta in R15 (both score 66), a 1.5% lead in R20 (279 vs 275), and a 1.2% lead in R23 (665 vs 657).

Q: Does the i5-4670 win any benchmark in this comparison?

A: No. The head-to-head data shows 6 wins for the i5-8365UE and 0 wins for the i5-4670 across all recorded tests.

Q: What is the difference in thread counts?

A: The i5-8365UE has 8 threads across 4 cores, while the i5-4670 has 4 threads across 4 cores, meaning the i5-8365UE supports Hyper-Threading and the i5-4670 does not.

Q: How much power does each processor consume?

A: The i5-8365UE is rated at 15W TDP, while the i5-4670 is rated at 84W TDP, a substantial difference in thermal design power.

Q: Which processor has a higher boost clock?

A: The i5-8365UE boosts to 4.10 GHz, which is higher than the i5-4670's boost clock of 3.80 GHz. However, the i5-4670 has a much higher base clock at 3.40 GHz compared to the i5-8365UE's 1.60 GHz.