Intel Core i3-6320 vs Intel Core i7-10510Y Comparison

Head-to-Head Benchmarks

The benchmark data is unambiguous: the Intel Core i3-6320 wins every single head-to-head comparison in the database. Across five Cinebench tests, the desktop Skylake part leads the mobile Comet Lake-Y chip by a consistent margin of roughly 15.5% to 15.8%. This is not a close contest; the i3-6320 dominates in both multi-threaded and single-threaded workloads.

In Cinebench R15 multi-core, the i3-6320 scores 378 against 319 for the i7-10510Y, a delta of -15.6% for the mobile chip. The margin is nearly identical in Cinebench R20 multi-core, where the i3-6320 posts 1576 versus 1332, a 15.5% advantage. The single-core results tell the same story: Cinebench R20 single-core shows the i3-6320 ahead at 222 versus 187, a 15.8% gap, and Cinebench R23 single-core has the i3-6320 winning 529 to 447, again 15.5% ahead.

The most striking pattern is the consistency of the deficit. Whether the workload scales across cores or runs on a single thread, the i7-10510Y trails by nearly the same percentage. This suggests the performance gap is fundamental to the design of the two chips rather than workload-specific. The i3-6320 does not merely edge out the i7-10510Y in one niche; it is uniformly faster across every benchmark recorded.

The average benchmark score reinforces this picture. The i7-10510Y averages 1092 points, while the i3-6320 averages 1085. These are separated by only 7 points, a 0.6% difference, but the head-to-head deltas show a much larger gap. This apparent contradiction is explained by the different benchmark suites used for each chip. The database records more tests for the i3-6320, including a very low single-core R15 score of 53, which pulls its average down. In the direct comparisons available, the i3-6320 is the clear winner.

Both processors sit at the 30th percentile among all CPUs in the database, indicating they are near-equal in overall standing. However, the direct head-to-head data leaves no room for ambiguity: when measured on the same tests, the i3-6320 is unambiguously faster.

Where Each One Wins

The i3-6320 wins in every measured scenario. Its multi-core advantage is substantial: 15.5% in R15, 15.5% in R20, and 15.5% in R23. That means for tasks like video rendering, 3D modeling, or compiling code, the desktop chip consistently finishes ahead. The single-core results are equally one-sided, with 15.8% and 15.5% leads in R20 and R23 respectively. For everyday responsiveness, basic productivity, and software that still relies on one fast thread, the i3-6320 is the better choice.

The i7-10510Y has no benchmark wins in the recorded data. However, its profile suggests where its strengths lie outside of raw compute performance. It is a mobile part with a TDP of 9 watts, while the i3-6320 draws 51 watts. The i7-10510Y is built for the BGA 1440 socket, which means it is soldered into thin-and-light laptops. Its 4 cores and 8 threads give it more logical processors than the i3-6320's 2 cores and 4 threads, and its 8 MB of shared L3 cache is double the i3-6320's 4 MB. The i7-10510Y also has a 4.5 GHz boost clock, allowing it to reach higher frequencies briefly, but the measured benchmarks show that boost does not translate into higher scores.

In practical terms, the i7-10510Y is the right pick for a fanless, battery-powered ultraportable where low heat and power draw are paramount. But if you need compute performance, the i3-6320 wins every single recorded test. There is no workload category in the data where the i7-10510Y comes out ahead.

The Verdict

The verdict from the recorded data is clear: for raw processing power, the Intel Core i3-6320 is the stronger chip. It is 15.5% faster in multi-core R20 and R23, 15.5% faster in single-core R23, and 15.6% faster in multi-core R15. Any user who needs maximum performance from these two chips should choose the i3-6320.

The i7-10510Y is not a competitive performer in this comparison. Its only advantages are structural: it is an 8-thread part, it has more cache, and it consumes far less power (9W versus 51W). It is also a newer release, launched in August 2019 compared to August 2015 for the i3-6320. But those advantages do not show up in the benchmark scores. The i7-10510Y cannot win a single recorded test.

The verdict depends on your needs. If you are selecting a chip for a desktop system where power is not a concern and you need the best possible scores, the i3-6320 is the only logical choice. If you are selecting a chip for a mobile device where battery life and heat are the primary constraints, the i7-10510Y's 9W TDP and BGA 1440 socket make it the only possible choice for that form factor, but you will accept roughly 15.5% lower performance in every test.

For the specific question of which CPU is faster, the answer is unambiguous: the i3-6320 beats the i7-10510Y in every benchmark, by a margin of 15.5% or more. The i7-10510Y offers no performance advantage anywhere in the data.

FAQ

Q: Which CPU has a higher multi-core score in Cinebench R23?

A: The Intel Core i3-6320 scores 3753, which is 15.5% ahead of the i7-10510Y's 3173.

Q: How does the single-core performance compare?

A: The i3-6320 wins in both recorded single-core tests: 222 versus 187 in R20 and 529 versus 447 in R23, each about 15.5% faster.

Q: Which processor has more threads?

A: The i7-10510Y has 8 threads, while the i3-6320 has 4 threads, but the i3-6320 still wins the multi-core benchmarks.

Q: What is the thermal design power (TDP) of each chip?

A: The i7-10510Y has a 9W TDP, while the i3-6320 has a 51W TDP.

Q: Which chip is more recent?

A: The i7-10510Y was released on August 20, 2019, while the i3-6320 was released on August 31, 2015.

Q: Are their average benchmark scores similar?

A: Yes, the i7-10510Y averages 1092 points and the i3-6320 averages 1085, a difference of 2 points or 0.6%.

Architecture Differences

The two processors come from different Intel design eras and target completely different markets. The i7-10510Y uses the Comet Lake architecture, codenamed Comet Lake-Y, and belongs to the 10th generation Core i7 series. It is built on a 14 nm process at Intel's foundry. The i3-6320 uses the Skylake architecture, also on a 14 nm process, and belongs to the Core i3 Skylake generation.

The most significant architectural difference is the core count. The i7-10510Y has 4 cores and 8 threads, while the i3-6320 has 2 cores and 4 threads. Despite having double the cores and threads, the i7-10510Y cannot outrun the i3-6320. This is due to the extreme clock speed difference: the i3-6320 has a base clock of 3.90 GHz with no boost, while the i7-10510Y has a base clock of 1.20 GHz and a boost of 4.50 GHz. The i3-6320 runs at a constant high clock, while the i7-10510Y must boost to approach similar speeds, which it cannot sustain in the benchmark.

Cache structures also differ. The i7-10510Y has 64 KB of L1 per core and 256 KB of L2 per core, identical to the i3-6320. However, the L3 cache is twice as large on the i7-10510Y: 8 MB shared versus 4 MB shared. The i3-6320 makes up for its smaller cache with a higher sustained clock.

Memory support is another major split. The i7-10510Y supports DDR3 memory, while the i3-6320 supports DDR4 with a dual-channel memory bus and 34.1 GB/s of bandwidth. The i3-6320 also supports PCIe Gen 3 with 16 lanes, while the i7-10510Y's PCIe configuration is not recorded.

The integrated graphics differ as well. The i7-10510Y carries UHD Graphics, while the i3-6320 carries Intel HD 530. The i3-6320 has a larger die size of 150 mm² and 1,400 million transistors, while those figures are not available for the i7-10510Y. The i3-6320 is a desktop part, socketed in Intel Socket 1151, while the i7-10510Y is a mobile part on Intel BGA 1440.

Specification Differences

The two processors differ in nearly every key specification. The i7-10510Y has 4 cores and 8 threads, while the i3-6320 has 2 cores and 4 threads. The i7-10510Y has a base clock of 1.20 GHz and a boost clock of 4.50 GHz, while the i3-6320 has a base clock of 3.90 GHz and no boost clock.

The thermal design power is vastly different: the i7-10510Y is rated at 9W, the i3-6320 at 51W. This reflects their markets: the i7-10510Y is a mobile chip for the Intel BGA 1440 socket, while the i3-6320 is a desktop chip for the Intel Socket 1151.

Cache and memory support differ. The i7-10510Y has 8 MB of shared L3 cache and supports DDR3 memory, while the i3-6320 has 4 MB of shared L3 cache and supports DDR4 memory with a dual-channel memory bus and 34.1 GB/s bandwidth. The i3-6320 also exposes PCIe Gen 3 with 16 lanes, while the i7-10510Y's PCIe information is not listed.

The integrated graphics differ: UHD Graphics on the i7-10510Y versus Intel HD 530 on the i3-6320. The i3-6320 has a listed part number, SR2H9, and a larger die size of 150 mm with 1,400 million transistors, while the i7-10510Y has no part number, die size, or transistor count in the database. Both are active in production, neither has an unlocked multiplier, and neither supports ECC memory. The release dates are also far apart: August 2019 for the i7-10510Y and August 2015 for the i3-6320.