Intel Core i3-4160T vs Intel Core i7-4558U Comparison

The Intel Core i3-4160T and Intel Core i7-4558U are both dual-core Haswell parts, but they target entirely different platform realities. The i3-4160T is a 35-watt desktop chip on Socket 1150, while the i7-4558U is a 28-watt mobile chip on BGA 1168. Benchmark results show a clear split: the desktop i3 wins five of the seven head-to-head tests, all of them in Cinebench, while the mobile i7 counters in both Geekbench tests. The average benchmark scores are nearly identical—1043 for the i3 versus 1038 for the i7—which places both chips in the same performance tier, with the i3 at the 29th percentile of all CPUs and the i7 at the 28th. This is a classic case where the application and workload determine the winner, not raw architectural superiority.

Where Each One Wins

The Intel Core i3-4160T dominates in sustained multi-threaded rendering workloads. In Cinebench R15 multicore, it scores 265 against the i7-4558U’s 255, a 3.9% advantage. That lead expands slightly in Cinebench R20 multicore, where the i3 posts 1106 versus 1063, a 4% edge. The pattern continues in Cinebench R23 multicore, with the i3 at 2635 and the i7 at 2532, a 4.1% gap. These are consistent, repeatable margins across three generations of the Cinebench test, indicating that the desktop chip’s higher base clock of 3.10 GHz provides a tangible benefit in rendering tasks that scale with sustained frequency.

Single-core Cinebench results also favor the i3-4160T. In Cinebench R20 single-core, it scores 156 versus 149, a 4.7% win, and in Cinebench R23 single-core, it scores 372 versus 357, a 4.2% win. This is notable because the i7-4558U has a boost clock of 3.30 GHz, which is higher than the i3’s fixed 3.10 GHz. Despite the i7’s ability to clock higher on a single core, the i3 still comes out ahead in these tests, suggesting that thermal headroom or power management on the mobile part limits its sustained single-thread performance.

The Intel Core i7-4558U, however, wins decisively in Geekbench multicore, scoring 1967 against the i3’s 1840, a 6.5% margin. This is the largest delta in either direction across all tests. The i7 also takes Geekbench single-core with 941 versus 926, a 1.6% edge. Geekbench is a more diverse workload mix than Cinebench, incorporating memory latency, cryptography, and integer operations, and the i7’s larger 4 MB shared L3 cache likely contributes to its advantage here. The i7’s wins are narrower in single-core but substantial in multicore, indicating that its memory subsystem and cache configuration offer benefits in mixed workloads that Cinebench does not capture.

Architecture Differences

Both processors are built on Intel’s 22 nm process node and share the Haswell microarchitecture, but they are not identical silicon. The i3-4160T has a die size of 177 mm² and contains 1,400 million transistors, while the i7-4558U has a smaller 118 mm² die with 1,300 million transistors. The i7-4558U is designated as Haswell-ULT, a low-power variant designed for ultra-thin mobile platforms, which explains its lower 28-watt TDP against the i3’s 35 watts. The i3 draws more power but is designed for desktop motherboards with more robust cooling.

Cache configurations differ notably. Both chips have 64 KB of L1 cache per core and 256 KB of L2 cache per core, but the L3 cache is where they diverge: the i3-4160T has 3 MB shared, while the i7-4558U has 4 MB shared. The extra 1 MB of L3 on the i7 is a meaningful architectural advantage for workloads that benefit from larger shared cache pools. Clock behavior also differs: the i3 runs at a fixed 3.10 GHz with no boost clock, while the i7 has a base clock of 2.80 GHz and a boost clock of 3.30 GHz. This means the i7 can reach higher peak frequencies but starts from a lower baseline.

Integrated graphics are another point of separation. The i3-4160T pairs with Intel HD 4400, while the i7-4558U uses Intel HD 5100. The i7’s graphics solution is a generation step above, which is typical for Core i7 mobile parts. Memory support is DDR3 for both, but the i3 specifies dual-channel memory explicitly, while the i7’s memory bus configuration is not listed in the data. The i3 supports PCIe Gen 3, while the i7’s PCIe information is absent, reflecting its mobile BGA socket design. Neither chip supports ECC memory, and neither has an unlocked multiplier.

The Verdict

The data indicates that the Intel Core i3-4160T is the better choice for rendering and compute-heavy workloads where sustained multi-threaded performance matters. Its 3.9-4.7% lead across Cinebench R15, R20, and R23 multicore and single-core tests is consistent and not marginal. If the primary use case is video encoding, 3D rendering, or any task that stresses all four threads for extended periods, the i3-4160T is the stronger performer. Its 35-watt TDP is higher, but for a desktop platform with a proper cooler, that is not a barrier.

The Intel Core i7-4558U is the better choice for mixed-use or mobile scenarios where the 28-watt TDP and smaller 118 mm² die are advantages. Its Geekbench multicore win of 6.5% over the i3 suggests that in applications with varied memory access patterns and cryptographic operations, the i7’s 4 MB L3 cache provides a real benefit. The i7 is also the only one of the two with a boost clock, which gives it flexibility to reach 3.30 GHz when thermal conditions allow. For a laptop or ultrabook where power efficiency and compact BGA packaging are prerequisites, the i7-4558U is the only viable option.

Users should also consider the platform context. The i3-4160T uses the Intel Socket 1150, which is a desktop socket with upgrade options and standard cooling solutions. The i7-4558U uses Intel BGA 1168, which is soldered to the motherboard and offers no upgrade path. The i3 is listed as Active in production status, while the i7’s production status is not specified in the data. For new builds, the i3 is the safer bet; for pre-existing mobile systems, the i7 is what you get.

FAQ

Q: Which processor has a higher average benchmark score?

A: The Intel Core i3-4160T has an average benchmark score of 1043, while the Intel Core i7-4558U has 1038. The difference is 5 points, which is less than 0.5%.

Q: How do these chips compare to their nearest rivals?

A: The i3-4160T is matched against the Intel Pentium Gold G5620 and AMD PRO A10-9700, both with an average score of 1045, showing a delta of -0.2%. The AMD Ryzen 7 PRO 3700U scores 1041, putting the i3 ahead by 0.2%. The i7-4558U faces the AMD A8-7680 with a 1036 score, giving the i7 a 0.2% lead, and the AMD A10-7890K at 1035, a 0.3% lead.

Q: What is the largest performance gap in the head-to-head tests?

A: The largest gap is in Geekbench multicore, where the Intel Core i7-4558U wins with 1967 against the i3-4160T’s 1840, a delta of -6.5% (from the i3’s perspective). This is the only test where the i7 wins by more than 2%.

Q: Does the i7-4558U have a boost clock?

A: Yes, the i7-4558U has a base clock of 2.80 GHz and a boost clock of 3.30 GHz. The i3-4160T has no boost clock and runs at a fixed 3.10 GHz.

Q: Which chip has more L3 cache?

A: The Intel Core i7-4558U has 4 MB of shared L3 cache, while the Intel Core i3-4160T has 3 MB of shared L3 cache. Both have 64 KB L1 and 256 KB L2 per core.

Q: Are both processors from the same architecture generation?

A: Yes, both are based on the Haswell architecture and use a 22 nm process node. The i7-4558U is specifically codenamed Haswell-ULT, indicating a low-power mobile variant.

Head-to-Head Benchmarks

The Cinebench suite is where the i3-4160T builds its case. In Cinebench R15 multicore, the i3 scores 265 against the i7’s 255, a 3.9% advantage. This margin is nearly identical in Cinebench R20 multicore, where the i3 hits 1106 and the i7 reaches 1063, a 4% gap. Cinebench R23 multicore shows the i3 at 2635 and the i7 at 2532, a 4.1% lead. The consistency across these three versions of the same test is striking—the i3’s advantage hovers around 4% regardless of the workload scaling. In single-core Cinebench tests, the i3’s lead is slightly larger: 4.7% in R20 (156 vs 149) and 4.2% in R23 (372 vs 357). This suggests that the i3’s fixed 3.10 GHz clock delivers more sustained single-thread throughput than the i7’s boost behavior, which may be thermally constrained in a 28-watt mobile package.

The Geekbench results flip the narrative. In Geekbench multicore, the i7-4558U scores 1967, while the i3-4160T manages 1840. The 127-point difference translates to a 6.5% win for the i7, which is the largest margin in any test. Geekbench single-core is closer: the i7 scores 941 against the i3’s 926, a 1.6% advantage. The i7’s 4 MB L3 cache versus the i3’s 3 MB is the most likely architectural explanation for this reversal, as Geekbench’s workload mix includes memory-intensive operations that benefit from larger cache pools. It is also worth remembering the i7’s Geekbench multicore score of 1967 is higher than its Cinebench R15 multicore score of 255 relative to the i3, which suggests that the i7’s strengths are not in raw compute throughput but in heterogeneous workload performance.

Overall, the head-to-head record is 5 wins for the i3-4160T and 2 wins for the i7-4558U. The i3 wins all five Cinebench tests, while the i7 wins both Geekbench tests. The deltas range from -6.5% to +4.7%, with the i3’s wins being more numerous but the i7’s biggest win being larger in magnitude. For users who prioritize Cinebench-style rendering performance, the i3 is the clear pick; for those who need Geekbench-style mixed workload performance, the i7 takes the crown.

Specification Differences

The Intel Core i3-4160T and Intel Core i7-4558U differ in several key specifications. Clock speeds are the first divergence: the i3 has a base clock of 3.10 GHz with no boost, while the i7 has a base clock of 2.80 GHz and a boost clock of 3.30 GHz. Thermal design power differs by 7 watts, with the i3 at 35 watts and the i7 at 28 watts. The socket types are incompatible: the i3 uses Intel Socket 1150, while the i7 uses Intel BGA 1168. The market segments reflect this, with the i3 designated as Desktop and the i7 as Mobile.

Die sizes and transistor counts also differ. The i3-4160T has a die size of 177 mm² with 1,400 million transistors, while the i7-4558U has a 118 mm² die with 1,300 million transistors. Despite being the higher-tier product, the i7 is physically smaller due to its low-power ULT design. L3 cache differs by 1 MB, with the i3 at 3 MB shared and the i7 at 4 MB shared. Integrated graphics are different: the i3 has Intel HD 4400, while the i7 has Intel HD 5100. The i3 explicitly supports dual-channel DDR3 memory and PCIe Gen 3, while the i7’s memory bus and PCIe information are not listed. The i3’s release date is later, coming on 2014-07-20, versus the i7’s 2013-06-03. The i7 has a part number SR188, while the i3 does not list one. Production status is Active for the i3, but unspecified for the i7. Neither chip supports ECC memory, and both have locked multipliers.