Intel Core i3-10105T vs Intel Core i7-5775R Comparison

The Intel Core i3-10105T and Intel Core i7-5775R are both 4-core, 8-thread desktop processors, but the head-to-head data shows a clear overall winner: the i3-10105T takes 7 of 8 benchmark comparisons, with the i7-5775R securing a single, though substantial, victory in Geekbench multi-core. The i3-10105T leads in every Cinebench test and in Geekbench single-core, while the i7-5775R counters with an 8.7% advantage in Geekbench multi-core. These results indicate that the newer Comet Lake part is the stronger all-around performer, despite the i7's higher base clock and older Broadwell heritage.

Head-to-Head Benchmarks

The benchmark suite covers Cinebench R15, R20, and R23, plus Geekbench 5. In Cinebench, the i3-10105T wins every test by a narrow but consistent margin. In Cinebench R15 multi-core, the i3 scores 670 against the i7's 641, a 4.5% lead. The single-core R15 test shows 94 versus 90, a 4.4% edge. Moving to R20, the i3 posts 2795 multi-core and 394 single-core, while the i7 manages 2671 and 376, giving the i3 a 4.6% and 4.8% advantage respectively. In R23, the i3 scores 6656 multi-core and 939 single-core, versus 6360 and 897 for the i7, both 4.7% ahead. These Cinebench results are consistent: the i3-10105T is roughly 4.5% to 4.8% faster across all rendering and single-thread workloads.

Geekbench tells a different story. In Geekbench single-core, the i3 wins again, scoring 1265 against 1218, a 3.9% lead. However, in Geekbench multi-core, the i7-5775R takes the win with 3996 points versus 3649 for the i3, a significant 8.7% margin. This is the only test where the i7 outperforms the i3, and it is a large enough gap to suggest that the i7's architecture handles certain multi-threaded tasks better, even though it loses in Cinebench multi-core. The overall benchmark average reflects this split: the i3 has an average score of 2058, while the i7 sits at 2031, a difference of about 1.3% in favor of the i3.

The Verdict

The data points to the Intel Core i3-10105T as the better choice for most users. It wins 7 of 8 benchmarks, including all Cinebench tests and Geekbench single-core, and it does so while consuming less power: the i3 has a 35W TDP versus the i7's 65W. The i3 is also a current, active product, while the i7 is end-of-life. For anyone building a new system or upgrading, the i3-10105T offers superior performance in the majority of workloads, particularly in rendering and single-threaded applications. The i7-5775R's only win, Geekbench multi-core, is notable but isolated. If a workload relies heavily on that specific benchmark, the i7 might be considered, but the i3's consistent wins across Cinebench and Geekbench single-core make it the more reliable performer overall. The i3 also supports DDR4 memory, which is more modern and offers higher bandwidth, further tipping the balance.

Architecture Differences

The two processors come from different Intel generations. The i3-10105T is based on Comet Lake, specifically the Comet Lake-R refresh, while the i7-5775R is a Broadwell part. Both are built on a 14 nm process, but the architectural differences are significant. The i3 uses the Intel Socket 1200 platform, while the i7 uses a BGA 1364 socket, meaning the i7 is soldered and not upgradeable. The i3 supports DDR4 memory with a dual-channel interface and a memory bandwidth of 42.7 GB/s, whereas the i7 supports DDR3 with a bandwidth of 29.9 GB/s. This gives the i3 a clear memory advantage. The integrated graphics also differ: the i3 has UHD Graphics 630, while the i7 has Iris Pro Graphics 6200. The i7's die size is listed at 182 mm², while the i3's die size is not recorded. The i3 was released in March 2021, while the i7 came out in May 2015, a gap of nearly six years. The i3 is still in active production, whereas the i7 is end-of-life.

Specification Differences

The two CPUs share several core specifications: both have 4 cores, 8 threads, 64 KB of L1 cache per core, 256 KB of L2 cache per core, and 6 MB of shared L3 cache. They also both use PCIe Gen 3 with 16 lanes from the CPU, do not support ECC memory, and have locked multipliers. The differences are as follows:

• Base clock: i3-10105T at 3.00 GHz, i7-5775R at 3.30 GHz
• Boost clock: i3-10105T at 3.90 GHz, i7-5775R at 3.80 GHz
• TDP: i3-10105T at 35W, i7-5775R at 65W
• Socket: i3-10105T on Intel Socket 1200, i7-5775R on Intel BGA 1364
• Memory support: i3-10105T uses DDR4, i7-5775R uses DDR3
• Memory bandwidth: i3-10105T at 42.7 GB/s, i7-5775R at 29.9 GB/s
• Integrated graphics: i3-10105T has UHD Graphics 630, i7-5775R has Iris Pro Graphics 6200
• Production status: i3-10105T is Active, i7-5775R is End-of-life
• Release date: i3-10105T on 2021-03-15, i7-5775R on 2015-05-14
• Launch MSRP: i3-10105T at $134, i7-5775R at $384
• Part number: i3-10105T is SRH3R, i7-5775R is SR2AL
• Die size: i7-5775R is 182 mm², i3-10105T is not listed

FAQ

Q: Which CPU has higher single-core performance?

A: The Intel Core i3-10105T wins every single-core test. It scores 94 in Cinebench R15, 394 in R20, 939 in R23, and 1265 in Geekbench, compared to the i7-5775R's 90, 376, 897, and 1218 respectively.

Q: Which CPU wins in Geekbench multi-core?

A: The Intel Core i7-5775R wins Geekbench multi-core with a score of 3996, while the i3-10105T scores 3649, giving the i7 an 8.7% advantage.

Q: What is the TDP difference?

A: The i3-10105T has a TDP of 35W, while the i7-5775R has a TDP of 65W. The i3 consumes significantly less power.

Q: Which CPU supports DDR4 memory?

A: The i3-10105T supports DDR4 memory, while the i7-5775R supports DDR3. The i3 also has higher memory bandwidth at 42.7 GB/s versus 29.9 GB/s.

Q: Which CPU is still in production?

A: The i3-10105T is listed as Active, while the i7-5775R is End-of-life. This means the i3 is still available for new systems, whereas the i7 is discontinued.

Q: What are the launch MSRPs?

A: The i3-10105T had a launch MSRP of $134, and the i7-5775R had a launch MSRP of $384.

Where Each One Wins

The Intel Core i3-10105T is the clear winner in rendering and single-threaded workloads. It leads in all Cinebench R15, R20, and R23 tests, both multi-core and single-core, with margins between 4.4% and 4.8%. It also wins Geekbench single-core by 3.9%. This makes it the better choice for video encoding, 3D rendering, and everyday applications that rely on single-thread performance. Its lower TDP and support for DDR4 memory further enhance its appeal for modern builds.

The Intel Core i7-5775R has one specific strength: Geekbench multi-core. Its score of 3996 is 8.7% higher than the i3's 3649. This suggests that in certain multi-threaded workloads that Geekbench measures, the i7 can outperform the i3, despite losing in Cinebench multi-core. However, this is an isolated win. The i7 also has a higher base clock (3.30 GHz vs 3.00 GHz) and a larger die size, but these do not translate into broader benchmark success. For users who prioritize Geekbench multi-core scores above all else, the i7-5775R might be worth considering, but the i3-10105T is the more consistent and modern performer across the full benchmark suite.