Intel Core i3-9100T vs Intel Core i5-5675R Comparison

The Verdict

The data paints a clear picture: the Intel Core i3-9100T is the more consistent performer in the traditional CPU benchmark suite, winning 5 out of 8 head-to-head tests. However, the Intel Core i5-5675R delivers a decisive victory in Geekbench multicore, an 8.6% advantage that cannot be ignored. If your workload leans on Geekbench-style multi-threaded tasks, the i5-5675R is the stronger pick. For Cinebench workloads, the i3-9100T edges ahead in nearly every test, albeit by a narrow margin of about 1%. The i3-9100T also offers a substantially lower TDP of 35 watts versus 65 watts, making it the obvious choice for power-conscious builds. The i5-5675R, with its launch MSRP of $265, sits in a different tier than the i3-9100T’s launch MSRP of $122, but the benchmark data shows the performance gap is far smaller than that price difference suggests. Pick the i3-9100T for efficiency and slightly better Cinebench scores; pick the i5-5675R if Geekbench multicore performance is your priority.

FAQ

Q: Which CPU has the higher single-core score in Cinebench R23?

A: The Intel Core i3-9100T scores 675 in Cinebench R23 single-core, while the Intel Core i5-5675R scores 668. The i3-9100T leads by 1%.

Q: Is there any benchmark where the i5-5675R wins by a large margin?

A: Yes, in Geekbench multicore the i5-5675R scores 3738 against the i3-9100T’s 3443, a 8.6% advantage. It also wins Geekbench single-core by 1.6%, scoring 1234 versus 1215.

Q: What is the difference in power consumption?

A: The i3-9100T has a TDP of 35 watts, while the i5-5675R has a TDP of 65 watts. The i3-9100T consumes significantly less power.

Q: Do both CPUs have the same core and thread count?

A: Yes, both have 4 cores and 4 threads.

Q: Which CPU supports ECC memory?

A: Only the Intel Core i3-9100T supports ECC memory. The i5-5675R does not.

Q: What is the production status of each CPU?

A: The i5-5675R is listed as Active, while the i3-9100T is listed as End-of-life.

Architecture Differences

The two processors come from different architectural generations. The i5-5675R is built on the Broadwell architecture, codenamed Broadwell, with a process node of 14 nm. The i3-9100T uses the Coffee Lake architecture, codenamed Coffee Lake, also on a 14 nm process node. Both use the same foundry, Intel, but the die size differs: the i5-5675R has a die size of 182 mm², while the i3-9100T is smaller at 126 mm².

Cache configuration differs as well. Both allocate 64 KB of L1 and 256 KB of L2 per core, but the shared L3 cache is larger on the i3-9100T at 6 MB, compared to 4 MB on the i5-5675R. Memory support diverges: the i5-5675R uses DDR3, while the i3-9100T supports DDR4. The memory bus is dual-channel on both, but memory bandwidth is higher on the i3-9100T at 38.4 GB/s versus 29.9 GB/s. Integrated graphics differ substantially: the i5-5675R packs Iris Pro Graphics 6200, while the i3-9100T has UHD Graphics 630. ECC memory support is present only on the i3-9100T.

Specification Differences

The core and thread counts are identical: 4 cores and 4 threads on both. Base clock is the same at 3.10 GHz, but boost clock differs slightly: 3.60 GHz on the i5-5675R versus 3.70 GHz on the i3-9100T. The TDP is a major divergence, 65 watts versus 35 watts. Sockets are different: Intel BGA 1364 for the i5-5675R, Intel Socket 1151 for the i3-9100T. The i5-5675R was released on 2015-05-14, while the i3-9100T came later on 2018-08-31. The i5-5675R has a launch MSRP of $265, the i3-9100T has a launch MSRP of $122. Neither has an unlocked multiplier. PCIe configuration is the same: Gen 3, 16 Lanes (CPU only). The i5-5675R is still Active, the i3-9100T is End-of-life. Part numbers are SR2AJ and SRCZX respectively.

Head-to-Head Benchmarks

Starting with Cinebench R15 multicore, the i3-9100T scores 482 against the i5-5675R’s 476, a 1.2% lead. In single-core R15, both are dead even at 67, with the i5-5675R technically listed as the winner due to a 0% delta. Moving to Cinebench R20, the i3-9100T takes multicore with 2010 versus 1987, a 1.1% margin, and single-core with 283 versus 280, also 1.1%. Cinebench R23 follows the same pattern: multicore 4788 versus 4733, a 1.1% edge for the i3-9100T, and single-core 675 versus 668, a 1% edge.

The story changes in Geekbench. The i5-5675R wins multicore decisively with 3738 against 3443, an 8.6% advantage. It also takes single-core with 1234 versus 1215, a 1.6% win. Across all eight tests, the i3-9100T wins five, but the i5-5675R’s Geekbench multicore victory is by far the largest margin in either direction. The average benchmark score puts the i5-5675R at 1648, slightly above the i3-9100T’s 1620. The i5-5675R ranks in the 40th percentile of all CPUs, the i3-9100T in the 39th.

Where Each One Wins

The i3-9100T is the better choice for Cinebench-centric workloads. It wins every single Cinebench R15, R20, and R23 test, both multicore and single-core, with margins between 1% and 1.2%. Its lower TDP of 35 watts makes it highly suitable for compact or passively cooled systems where thermal headroom is tight. It also supports ECC memory, a feature entirely absent from the i5-5675R, which could matter for certain reliability-focused builds. The larger 6 MB L3 cache and newer release date suggest a more modern design, and its higher boost clock of 3.70 GHz likely contributes to its slight single-core edge.

The i5-5675R wins where it matters most for general system responsiveness: Geekbench. Its 8.6% multicore advantage is substantial, and its 1.6% single-core win adds to that. The Iris Pro Graphics 6200 is a more capable integrated GPU than the UHD Graphics 630, which could make the i5-5675R appealing for light graphics work without a dedicated card. Its Active production status means it may still be available for new builds, whereas the i3-9100T is End-of-life. The i5-5675R also holds a slight edge in average benchmark score, 1648 versus 1620, and its nearest rivals are all within 0.3% of its score, indicating a tightly contested performance class.

In summary, pick the i3-9100T if you prioritize Cinebench performance, power efficiency, and ECC support. Pick the i5-5675R if Geekbench scores and integrated graphics capability are more important to your use case. The benchmark data does not show a clear overall winner, but it does show distinct strengths for each.