Intel Core i3-10105F vs Intel Xeon Bronze 3408U Comparison

Head-to-Head Benchmarks

The benchmark record presents an unusual split: the Intel Xeon Bronze 3408U wins 12 of the 17 head-to-head tests, yet the Intel Core i3-10105F claims some of the most decisive victories. The Xeon Bronze’s wins are consistent across the Cinebench suite, where it leads by roughly 11% in every test. In Cinebench R23 multi-core, the Xeon Bronze scores 8473 against the Core i3’s 7537, a margin of 11%. Single-core Cinebench R23 shows the same pattern, with the Xeon Bronze at 1196 versus 1064 for the Core i3, again an 11% gap. This uniformity suggests the Xeon Bronze’s advantage is structural, not workload-specific.

The most dramatic Xeon Bronze win comes in Passmark’s find prime numbers test, where it scores 119 against the Core i3’s 25, a 79% lead. This is not a small margin; it is a category dominance. The Xeon Bronze also excels in floating point math, scoring 29142 versus 18166, a 37.7% advantage. Physics simulation shows a 48.7% gap, with the Xeon Bronze scoring 1114 against 571. Data encryption is another clear win for the Xeon Bronze, posting 5274 versus 3045, a 42.3% lead. Extended instructions follow at 15.7% ahead, with scores of 10387 versus 8753.

The Core i3-10105F, however, owns the single-threaded Passmark tests. It scores 2647 in single-thread versus the Xeon Bronze’s 1516, a massive 74.6% lead. This is the largest delta in the entire comparison, and it appears twice in the data (both single-thread and singlethread tests record identical scores). The Core i3 also wins data compression by 36.5%, scoring 130647 against 95714. Random string sorting goes to the Core i3 by 36%, with scores of 16414 versus 12073. Integer math is another Core i3 win, 28921 versus 22803, a 26.8% margin. The multithread Passmark test goes to the Xeon Bronze by a modest 10.4%, with scores of 9969 versus 8930.

What the data implies is a tale of two design philosophies. The Xeon Bronze trades raw clock speed for parallelism and memory bandwidth, while the Core i3 leverages high frequency to crush latency-sensitive workloads. The 74.6% single-thread gap is not a small difference; it indicates the Core i3 is in a different performance class for sequential tasks. Yet the Xeon Bronze’s 79% lead in prime number finding suggests its architecture handles integer-heavy loops far more efficiently, even at dramatically lower clocks.

Architecture Differences

The two processors come from different Intel generations and manufacturing nodes. The Core i3-10105F uses Comet Lake-R, built on Intel’s 14 nm process, while the Xeon Bronze 3408U uses Sapphire Rapids on a 10 nm node. The Core i3 has 4 cores and 8 threads, whereas the Xeon Bronze has 8 cores but only 8 threads, meaning no simultaneous multithreading on the Xeon. This explains part of the benchmark pattern: the Xeon Bronze’s extra physical cores help in multi-threaded workloads, but its lack of hyperthreading limits its ceiling in some parallel tasks.

Clock speeds differ substantially. The Core i3 runs at 3.70 GHz base and boosts to 4.40 GHz. The Xeon Bronze is listed at 1800.00 MHz base and 1900.00 MHz boost, which is roughly half the Core i3’s frequency. Despite this, the Xeon Bronze wins most multi-threaded tests, indicating its per-core efficiency at lower clocks is high, likely due to the newer architecture and larger caches. Cache configurations tell a similar story: the Core i3 has 64 KB L1 and 256 KB L2 per core, with 6 MB shared L3. The Xeon Bronze has 80 KB L1 and 2 MB L2 per core, with 22.5 MB L3. The Xeon Bronze’s 2 MB per-core L2 is eight times larger than the Core i3’s, and its L3 is nearly four times bigger overall.

Memory support is another major divider. The Core i3 supports DDR4 with dual-channel memory and 42.7 GB/s bandwidth, and it does not support ECC. The Xeon Bronze supports DDR5 with eight-channel memory and 256.0 GB/s bandwidth, and it does support ECC. The memory bandwidth difference is roughly sixfold, which helps explain the Xeon Bronze’s strong showing in memory-intensive tasks like data encryption and floating point math. PCIe connectivity also differs: the Core i3 offers Gen 3 with 16 lanes, while the Xeon Bronze offers Gen 5 with 80 lanes. The socket and platform are entirely different, with the Core i3 on Intel Socket 1200 and the Xeon Bronze on Intel Socket 4677.

The market segments are clear from the data: the Core i3 is a desktop part, while the Xeon Bronze is a server or workstation processor. The production status for both is listed as Active, and neither has an unlocked multiplier. The Core i3’s launch date is 2021-03-15, and the Xeon Bronze’s is 2023-01-09, nearly two years later. The part numbers are SRH8V for the Core i3 and SRMGB for the Xeon Bronze. Neither has integrated graphics listed.

The Verdict

The data points to different buyers for each chip. The Core i3-10105F is the choice for anyone running single-threaded applications, where it leads by 74.6% in Passmark single-thread tests. Its wins in data compression and random string sorting also suggest it handles text or file-heavy workloads well. The Xeon Bronze 3408U is the pick for multi-threaded, memory-bandwidth-hungry server tasks. Its 79% lead in prime number finding, 48.7% lead in physics, and 42.3% lead in encryption are decisive. The Xeon Bronze also wins all Cinebench tests by 11%, indicating a consistent multi-core advantage.

The average benchmark scores tell a nuanced story. The Core i3 has an average benchmark score of 12644, while the Xeon Bronze sits at 12019. Both are at the 67th percentile among all CPUs. The nearest rivals for the Core i3 include the Intel Atom x7809C at 12607 (0.3% behind), the Intel Core i3-1215U at 12604 (0.3% behind), the AMD EPYC 7502 at 12709 (0.5% ahead), and the Intel Core i5-1230U at 12559 (0.7% behind). The Xeon Bronze’s nearest rivals are the Intel Xeon Gold 6314U at 12026 (0.1% ahead), the AMD Ryzen 5 3500X at 12000 (0.2% behind), the Intel Core i3-12100 at 12054 (0.3% ahead), and the Intel Core i7-7700 at 11914 (0.9% behind). These deltas are small, meaning both processors sit in a crowded performance band, but they achieve their averages through very different strengths.

For a desktop user, the Core i3’s higher single-thread performance is likely more useful day to day. For a server environment where ECC memory and eight-channel bandwidth matter, the Xeon Bronze is the only rational choice from this data. The Core i3 does not support ECC, which alone disqualifies it from many server deployments. The Xeon Bronze’s 8 cores versus 4 cores also matters for sustained parallel workloads, even without hyperthreading. The verdict is not about which is faster overall, but which fits the workload. The Core i3 wins 5 tests, the Xeon Bronze wins 12, but the magnitude of the Core i3’s single-thread win is larger than any single Xeon Bronze win.

Specification Differences

The two processors differ in nearly every core specification. The Core i3 has 4 cores and 8 threads, while the Xeon Bronze has 8 cores and 8 threads. Base clocks are 3.70 GHz versus 1800.00 MHz, and boost clocks are 4.40 GHz versus 1900.00 MHz. TDP is 65 watts for the Core i3 and 125 watts for the Xeon Bronze. The sockets are different (Intel Socket 1200 versus Intel Socket 4677), as are the architectures (Comet Lake versus Sapphire Rapids). The process nodes are 14 nm versus 10 nm.

Cache sizes diverge sharply. L1 cache is 64 KB per core for the Core i3 and 80 KB per core for the Xeon Bronze. L2 is 256 KB per core versus 2 MB per core. L3 is 6 MB shared versus 22.5 MB. Memory support is DDR4 versus DDR5, with dual-channel versus eight-channel buses. Memory bandwidth is 42.7 GB/s versus 256.0 GB/s. ECC memory is false for the Core i3 and true for the Xeon Bronze. PCIe is Gen 3 with 16 lanes versus Gen 5 with 80 lanes.

The release dates are 2021-03-15 versus 2023-01-09. The launch MSRP for the Core i3 is $97, and for the Xeon Bronze it is $425. Both have no integrated graphics and no unlocked multiplier. The market segments are Desktop versus Server/Workstation. The part numbers are SRH8V versus SRMGB. Neither has a listed die size or transistor count.

FAQ

Q: Which CPU has more cores?

A: The Intel Xeon Bronze 3408U has 8 cores, while the Intel Core i3-10105F has 4 cores.

Q: Does the Core i3 support ECC memory?

A: No, the Core i3-10105F does not support ECC memory, while the Xeon Bronze 3408U does support ECC.

Q: Which processor has higher single-thread performance?

A: The Core i3-10105F leads by 74.6% in Passmark single-thread tests, scoring 2647 versus 1516 for the Xeon Bronze 3408U.

Q: What is the memory bandwidth difference?

A: The Xeon Bronze 3408U has 256.0 GB/s bandwidth with eight-channel DDR5, while the Core i3-10105F has 42.7 GB/s with dual-channel DDR4.

Q: Which CPU wins in data encryption?

A: The Xeon Bronze 3408U wins by 42.3%, scoring 5274 versus 3045 for the Core i3-10105F.

Q: Are both CPUs still in production?

A: Yes, both the Core i3-10105F and the Xeon Bronze 3408U are listed as Active in production status.

Where Each One Wins

The Core i3-10105F dominates in single-threaded and latency-sensitive tasks. Its 74.6% lead in Passmark single-thread is the largest gap in the entire comparison. It also wins data compression by 36.5% and random string sorting by 36%, suggesting strong performance in text processing and data serialization. Integer math goes to the Core i3 by 26.8%, which indicates a solid showing in general arithmetic workloads. These wins point to desktop use cases: web browsing, office applications, light coding, and any software that relies on quick response times rather than massive parallel throughput.

The Xeon Bronze 3408U wins in computational density and memory-bound scenarios. Its 79% lead in prime number finding is striking, and its 48.7% win in physics simulation shows strength in scientific or engineering workloads. Floating point math goes to the Xeon Bronze by 37.7%, which is important for numerical analysis, rendering, and simulation. Data encryption is 42.3% ahead, and extended instructions are 15.7% ahead. All Cinebench tests, multi-core and single-core, go to the Xeon Bronze by about 11%, indicating a balanced advantage in both rendering and general compute. With ECC memory support and eight-channel DDR5 bandwidth, the Xeon Bronze is clearly built for server racks, virtual machines, and database workloads. The Core i3 cannot match its memory bandwidth or core count, and its lack of ECC limits its server viability. In contrast, the Xeon Bronze’s low clock speed and lack of hyperthreading hold it back in the same single-threaded tests where the Core i3 excels. The data shows two tools for different jobs: the Core i3 for interactive, single-thread-heavy desktop work, and the Xeon Bronze for parallel, memory-hungry server tasks.