Intel Xeon D-1567 vs Intel Xeon E-2126G Comparison

Head-to-Head Benchmarks

The benchmark database records a decisive sweep in this matchup. The Intel Xeon D-1567 wins all six head-to-head comparisons, with the Intel Xeon E-2126G trailing by a consistent margin across every test. The closest gap appears in Cinebench R20 single-core, where the D-1567 leads by 7.1%, while the largest gap is a 7.4% deficit for the E-2126G in Cinebench R15 single-core. Every other test shows a delta of 7.2% in favor of the D-1567.

Starting with multicore workloads, the D-1567 posts 965 points in Cinebench R15 multicore against 896 for the E-2126G. That pattern repeats in Cinebench R20 multicore, where the D-1567 scores 4022 versus 3734, and in Cinebench R23 multicore, where the D-1567 reaches 9578 against 8891. These results are notable because the E-2126G carries a much higher boost clock of 4.50 GHz compared to the D-1567's 2.70 GHz. Despite that frequency disadvantage, the D-1567's 12 cores and 24 threads overwhelm the E-2126G's 6 cores and 6 threads in threaded workloads.

Single-core results tell a similar story, which is more surprising given the clock speed disparity. The D-1567 scores 136 in Cinebench R15 single-core versus 126 for the E-2126G, 567 in Cinebench R20 single-core versus 527, and 1352 in Cinebench R23 single-core versus 1255. The E-2126G's 4.50 GHz boost clock should theoretically give it an advantage in lightly threaded tasks, but the recorded data shows the D-1567 ahead by roughly 7% in all three single-core tests. This suggests the D-1567's architecture extracts more instructions per clock, or the E-2126G is thermally or power constrained in these workloads.

The consistency of the deltas is striking. Across all six benchmarks, the margin never deviates beyond 7.1% to 7.4%. This indicates a stable performance differential rather than workload-specific variability. The E-2126G's average benchmark score of 2842 places it in the 51st percentile of all CPUs, while the D-1567's average score of 2770 also lands in the 51st percentile. Their nearest rivals cluster closely: the E-2126G sits within 0.6% of the Intel Core i7-6800K, Intel Core i5-10600, AMD Ryzen 3 PRO 5450U, and Intel Core i7-11370H. The D-1567 similarly trades places with the AMD Ryzen 3 PRO 4350GE, AMD Ryzen 3 PRO 4350G, Intel Core i7-5930K, and AMD Ryzen 3 5400U, with deltas of 0.1% to 0.2%. Neither chip dramatically outperforms its immediate peers, but the head-to-head data clearly favors the D-1567.

The Verdict

The data points to the Intel Xeon D-1567 as the superior processor in this comparison. It wins every recorded benchmark, including single-core tests where the E-2126G's higher clock speeds would normally provide an edge. The D-1567's 12 cores and 24 threads give it a structural advantage in multithreaded server workloads, and its 7% lead in single-core results indicates it does not sacrifice per-thread performance.

The E-2126G, with 6 cores and 6 threads, is better suited to workloads that do not scale with thread count, but the benchmark results show it cannot match the D-1567 even there. Its 4.50 GHz boost clock does not translate into a win in any of the six recorded tests. The E-2126G does offer integrated graphics (HD Graphics P630), which the D-1567 lacks entirely, so systems requiring a display output without a discrete GPU would need to account for that difference.

The production status also favors the D-1567, which remains active, while the E-2126G is end-of-life. For buyers choosing between these two in the current market, the D-1567's active status and benchmark superiority make it the safer selection. The E-2126G's launch MSRP is $255, while the D-1567's launch MSRP is 1199, but the performance data does not justify the E-2126G for any workload measured in this database.

FAQ

Q: Which processor wins in multi-threaded workloads?

A: The Intel Xeon D-1567 wins all three multicore benchmarks: Cinebench R15 multicore (965 vs 896), Cinebench R20 multicore (4022 vs 3734), and Cinebench R23 multicore (9578 vs 8891). The margin is 7.2% in each case.

Q: Does the E-2126G's higher boost clock help it in single-core tests?

A: No. The E-2126G boosts to 4.50 GHz, but the D-1567 still wins every single-core test, with scores of 136 vs 126 in Cinebench R15, 567 vs 527 in Cinebench R20, and 1352 vs 1255 in Cinebench R23.

Q: What are the core and thread counts for each processor?

A: The Intel Xeon E-2126G has 6 cores and 6 threads. The Intel Xeon D-1567 has 12 cores and 24 threads.

Q: Do both processors support ECC memory?

A: Yes, both the E-2126G and the D-1567 support ECC memory.

Q: Which processor has a higher average benchmark score?

A: The E-2126G has a higher average benchmark score of 2842, compared to 2770 for the D-1567. However, this average includes a Geekbench multicore score of 5743 and a Geekbench singlecore score of 1565 for the E-2126G, which are not recorded for the D-1567. In the six shared head-to-head tests, the D-1567 wins all of them.

Q: Are these processors still in production?

A: The Intel Xeon D-1567 is listed as active, while the Intel Xeon E-2126G is end-of-life.

Specification Differences

The two processors differ in core count, thread count, clock speeds, TDP, socket, cache layout, memory support, memory bandwidth, PCIe lanes, integrated graphics, release date, launch MSRP, and part number.

The E-2126G has 6 cores and 6 threads, while the D-1567 has 12 cores and 24 threads. The E-2126G runs at a base clock of 3.30 GHz and boosts to 4.50 GHz, whereas the D-1567 runs at 2.10 GHz base and 2.70 GHz boost. TDP is 80 watts for the E-2126G and 65 watts for the D-1567, meaning the D-1567 delivers more threads while consuming less power. The E-2126G uses Intel Socket 1151, while the D-1567 uses Intel BGA 1667, so the two are not socket-compatible.

Cache configurations differ significantly. The E-2126G has 12 MB of shared L3 cache, while the D-1567 has 1.5 MB of L3 cache per core. Both have 64 KB of L1 cache per core and 256 KB of L2 cache per core. The E-2126G supports only DDR4 memory, while the D-1567 supports both DDR3 and DDR4. Memory bandwidth is listed as 42.7 GB/s for the E-2126G, with no figure recorded for the D-1567. The E-2126G provides 16 PCIe Gen 3 lanes, while the D-1567 provides 24 PCIe Gen 3 lanes.

The E-2126G includes integrated HD Graphics P630, while the D-1567 has no integrated graphics. The release dates differ: the E-2126G launched on 2018-07-11, and the D-1567 launched on 2016-02-23. Launch MSRP values are $255 for the E-2126G and 1199 for the D-1567. Part numbers are SR3WU for the E-2126G and SR2M3 for the D-1567.

Architecture Differences

The E-2126G belongs to the Xeon E-2100 series and uses the Coffee Lake architecture, specifically the Coffee Lake-S WS codename. The D-1567 uses the Broadwell architecture, with the Broadwell-DE codename. Both processors are built on a 14 nm process at Intel's foundry, but the die sizes diverge: the E-2126G measures 154 mm², while the D-1567 measures 246 mm². The D-1567 also has a recorded transistor count of 3,200 million, while no transistor figure is listed for the E-2126G.

The memory controllers differ in supported standards. The E-2126G supports DDR4 only, while the D-1567 supports both DDR3 and DDR4. Both run dual-channel memory buses. The E-2126G's memory bandwidth is 42.7 GB/s, while the D-1567's bandwidth is not recorded in the database. Both support ECC memory, which is typical for server and workstation parts.

PCIe lane availability favors the D-1567, with 24 Gen 3 lanes versus 16 for the E-2126G. This gives the D-1567 more headroom for expansion cards, NVMe storage, or other PCIe devices. The integrated graphics situation is a clear differentiator: the E-2126G has HD Graphics P630 built in, while the D-1567 has no integrated graphics, requiring a discrete GPU for any display output.

The generation labels in the database reflect the architectural split: the E-2126G is listed as "Xeon E (Coffee Lake)" and the D-1567 as "Xeon D (Broadwell-DE)". The E-2126G is end-of-life, while the D-1567 remains active. Both processors have locked multipliers, so neither supports overclocking. The D-1567's larger die and transistor count, combined with its higher core count and lower TDP, point to a design optimized for dense, power-efficient server deployments, while the E-2126G focuses on higher clock speeds for lightly threaded workstation tasks. The benchmark data, however, shows the D-1567 winning even in the single-threaded domain, making the architectural tradeoff a clear win for the Broadwell-based part.