CPU Comparison

The Intel Core i3-9320 and Intel Xeon D-1537 are both 14 nm Intel parts, but they target completely different segments: a desktop chip versus a server/workstation processor. The benchmark data shows a remarkably close contest, with the Xeon D-1537 winning every single head-to-head test, though by margins that are often within a single percentage point. The Xeon D-1537's edge is consistent but small, making the Core i3-9320 a surprisingly competitive desktop alternative in raw compute, even as the Xeon pulls ahead in every measured workload.

Head-to-Head Benchmarks

The Xeon D-1537 sweeps all six Cinebench comparisons, but the victories are narrow. In Cinebench R15 multi-core, the Xeon scores 637 against the Core i3's 630, a delta of just 1.1%. The single-core R15 result is slightly wider: 90 versus 88, a 2.2% advantage for the Xeon. Moving to R20, the multi-core gap shrinks to 1.2% (2657 vs 2626), and single-core shows a 1.3% lead (375 vs 370). The pattern holds in Cinebench R23, where the Xeon again leads by 1.2% in both multi-core (6327 vs 6254) and single-core (893 vs 882).

The consistency of the Xeon's win is notable. It does not rely on a single outlier benchmark; it edges out the Core i3 across every version of Cinebench and in both single- and multi-threaded tests. The largest margin is the R15 single-core result at 2.2%, which is still small. The smallest is the R15 multi-core at 1.1%. In practical terms, these deltas are often within run-to-run variance, yet the direction is unmistakable: the Xeon D-1537 is marginally faster in every measured scenario.

The average benchmark scores tell a similar story. The Xeon D-1537 posts an average score of 1830, while the Core i3-9320 sits at 1808. That is a 22-point gap, roughly 1.2%, which aligns with the per-test deltas. Both processors land in the 42nd percentile of all CPUs, placing them in the same performance tier. The nearest rivals for the Core i3 confirm its positioning: it trades within 0.4% of the AMD Ryzen 5 PRO 4650U, the Intel Core i3-9100, the Intel Xeon E5-1620 v4, and the Intel Core i5-6600K. The Xeon D-1537's nearest rivals include the Intel Xeon E5-2608L v3, Intel Core i5-8305G, AMD Ryzen 5 4600U, and Intel Core i7-4790S, all within 0.1% of its score.

Architecture Differences

The two chips come from different Intel microarchitectures. The Core i3-9320 uses Coffee Lake, specifically the Coffee Lake Refresh generation, while the Xeon D-1537 is built on Broadwell, in its Broadwell-DE variant. Both are fabricated on Intel's 14 nm process, but the die sizes differ substantially: the Core i3 measures 126 mm², while the Xeon D-1537 has a 246 mm² die. The Xeon also lists 3,200 million transistors; the Core i3's transistor count is not provided.

Core and thread counts diverge sharply. The Core i3-9320 has 4 cores and 4 threads, meaning no hyper-threading. The Xeon D-1537 doubles that to 8 cores and 16 threads. Cache organization also differs. Both allocate 64 KB of L1 and 256 KB of L2 per core, but the L3 design is different: the Core i3 has 8 MB shared L3, while the Xeon D-1537 provides 1.5 MB per core, which totals 12 MB across eight cores. This per-core L3 allocation is a server-oriented design, favoring predictable access for each core.

Socket and platform are entirely different. The Core i3-9320 fits Intel Socket 1151, a mainstream desktop socket, while the Xeon D-1537 uses Intel BGA 1667, a soldered embedded/server form factor. The Xeon supports both DDR3 and DDR4 memory, whereas the Core i3 lists DDR4 only. Both use dual-channel memory buses, and both support ECC memory, a rarity for a desktop chip like the Core i3. The Core i3's memory bandwidth is specified at 38.4 GB/s; the Xeon's is not provided. PCIe lanes differ: the Core i3 offers Gen 3 with 16 lanes, while the Xeon D-1537 provides Gen 3 with 24 lanes. The Core i3 includes integrated UHD Graphics 630; the Xeon has no integrated graphics.

Where Each One Wins

The Xeon D-1537 wins every benchmark, so the "where each wins" split is lopsided. Its multi-core advantage, while small, comes from having twice the cores and four times the threads. In Cinebench R15 multi-core, the Xeon's 637 beats the Core i3's 630. That 7-point lead is the largest multi-core margin in the data. The R20 and R23 multi-core tests show 31- and 73-point leads, respectively, but as percentages they are identical at 1.2%. The Xeon's single-core wins are also consistent, with the R15 single-core showing its best relative performance at 2.2% ahead.

The Core i3-9320 has no benchmark wins to claim. However, its performance is close enough that the data does not show a meaningful gap in most tests. The 1.1% to 1.3% multi-core deltas suggest that for lightly threaded or moderately threaded workloads, the Core i3 is effectively on par. The Core i3's 4.40 GHz boost clock, versus the Xeon's 2.30 GHz, does not translate into a single-core win, but it keeps the deficit small. The Core i3 also has a much lower die size (126 mm² vs 246 mm²), which may imply lower manufacturing complexity, though power and thermal characteristics are not directly benchmarked here.

For desktop use, the Core i3's integrated UHD Graphics 630 is a clear functional advantage, as the Xeon has none. For server workloads, the Xeon's 8-core, 16-thread configuration, 24 PCIe lanes, and support for both DDR3 and DDR4 make it the more flexible platform. The Xeon's 35 W TDP versus the Core i3's 62 W TDP also suggests it may be easier to cool in dense systems, though this is not a benchmark result.

Specification Differences

The specification sheet highlights the fundamental divide between these two processors. The Core i3-9320 has 4 cores and 4 threads; the Xeon D-1537 has 8 cores and 16 threads. Base clocks are starkly different: the Core i3 runs at 3.70 GHz, while the Xeon is at 1700.00 MHz (1.70 GHz). Boost clocks follow suit: 4.40 GHz for the Core i3 versus 2.30 GHz for the Xeon. The Xeon's lower clocks are offset by its core count and thread count.

TDP differs significantly: the Core i3 is rated at 62 W, the Xeon at 35 W. The Xeon achieves lower power draw despite more cores, reflecting its server-oriented low-power design. Socket types are incompatible: Intel Socket 1151 versus Intel BGA 1667. The Xeon's transistor count is listed at 3,200 million; the Core i3's is not specified. Die size also differs, with the Core i3 at 126 mm² and the Xeon at 246 mm².

Cache implementation is a major differentiator. The Core i3 has 8 MB of shared L3; the Xeon has 1.5 MB per core, which scales to 12 MB total across eight cores. Memory support shows the Xeon accepting both DDR3 and DDR4, while the Core i3 is DDR4-only. PCIe lane counts differ: 16 for the Core i3, 24 for the Xeon. The Core i3 has integrated UHD Graphics 630; the Xeon has none. The Xeon's market segment is Server/Workstation, while the Core i3 is Desktop. The Xeon is still in active production, whereas the Core i3 is end-of-life. The Core i3 was released on 2019-04-22, while the Xeon came out on 2015-10-31. The Xeon's launch MSRP is $470; the Core i3's launch MSRP is $154. Both are multiplier-unlocked: false.

FAQ

Q: Which processor won the most benchmarks?

A: The Intel Xeon D-1537 won all six head-to-head Cinebench tests, with wins in R15, R20, and R23 for both single-core and multi-core.

Q: How much faster is the Xeon D-1537 in multi-core workloads?

A: The Xeon leads by 1.1% in Cinebench R15 multi-core (637 vs 630) and by 1.2% in both R20 (2657 vs 2626) and R23 (6327 vs 6254) multi-core tests.

Q: Does the Core i3-9320 win any single-core test?

A: No. The Xeon D-1537 wins all three single-core tests: R15 (90 vs 88, a 2.2% lead), R20 (375 vs 370, a 1.3% lead), and R23 (893 vs 882, a 1.2% lead).

Q: What is the difference in core and thread counts?

A: The Core i3-9320 has 4 cores and 4 threads, while the Xeon D-1537 has 8 cores and 16 threads.

Q: Do both processors support ECC memory?

A: Yes, both the Core i3-9320 and the Xeon D-1537 list ECC memory support as true.

Q: Which processor has integrated graphics?

A: Only the Core i3-9320 includes integrated UHD Graphics 630. The Xeon D-1537 has no integrated graphics.

The Verdict

The data leads to a clear conclusion: the Intel Xeon D-1537 is the faster processor in every benchmark recorded, but the margin is thin. If the decision rests purely on Cinebench scores, the Xeon wins all six tests, with deltas ranging from 1.1% to 2.2%. Its 8 cores and 16 threads provide a structural advantage over the Core i3's 4 cores and 4 threads, yet the Core i3's much higher clock speeds (3.70 GHz base, 4.40 GHz boost versus 1.70 GHz and 2.30 GHz) keep the gap remarkably small. The average benchmark scores reinforce this: 1830 for the Xeon versus 1808 for the Core i3, both landing in the 42nd percentile.

For a desktop user, the Core i3-9320 is the pragmatic choice. Its integrated UHD Graphics 630 eliminates the need for a discrete GPU, its 62 W TDP is standard for a desktop socket, and its performance is within 2.2% of the Xeon in all tests. The 4.40 GHz boost clock makes it responsive for everyday tasks, and the lower launch MSRP of $154 versus $470 positions it as the far more accessible part. The Xeon's $470 launch MSRP and BGA 1667 socket point to a different buyer entirely.

For a server or workstation deployment, the Xeon D-1537 is the appropriate pick. Its 8 cores and 16 threads, 24 PCIe lanes, support for both DDR3 and DDR4, and active production status make it a viable embedded or dense-server processor. The 35 W TDP is impressively low for an 8-core part, and the per-core L3 cache design suits multi-tenant workloads. The Xeon's consistent, if narrow, benchmark victories confirm that it extracts more compute from its architecture, even at much lower clocks.

The verdict is stratified by use case. In raw benchmark performance, the Xeon D-1537 wins outright, six out of six tests. In practical desktop terms, the Core i3-9320 offers comparable speed with integrated graphics and a lower launch MSRP. In server terms, the Xeon's core count, thread count, memory flexibility, and PCIe lane count make it the only one of the two that fits that role. Neither chip is a clear overall winner; the data shows a desktop chip that nearly matches a server chip in compute, but each belongs in its own segment.