CPU Comparison
Intel Xeon E-2144G
Xeon E5-2643 v3
PERFORMANCE BENCHMARKS
Analysis: Intel Xeon E-2144G vs Intel Xeon E5-2643 v3
The Intel Xeon E-2144G and Intel Xeon E5-2643 v3 are two end-of-life server/workstation processors that, despite arriving four years apart, land in nearly the same performance tier. The E-2144G is a 4-core, 8-thread Coffee Lake chip with a 3.60 GHz base and 4.50 GHz boost clock, while the E5-2643 v3 is a 6-core, 12-thread Haswell-EP part running at 3.40 GHz base and 3.70 GHz boost. Their average benchmark scores are nearly identical, 2514 for the E-2144G versus 2511 for the E5-2643 v3, placing both at the 49th percentile of all CPUs. The head-to-head data, however, tells a one-sided story: the E5-2643 v3 wins all six benchmark comparisons, yet the margin is remarkably consistent and narrow.
Head-to-Head Benchmarks
The E5-2643 v3 holds a decisive edge in every single benchmark recorded, but the magnitude of that edge never varies. Across all six tests, Cinebench R15, R20, and R23, in both multicore and singlecore variants, the deltaPct is exactly -8.9% for the E-2144G. This uniformity suggests the performance gap is structural rather than workload-dependent. In Cinebench R15 multicore, the E5-2643 v3 scores 875 against the E-2144G’s 797; in singlecore, the margin is 123 versus 112. Moving to Cinebench R20, the E5-2643 v3 posts 3646 multicore and 514 singlecore, while the E-2144G trails at 3322 and 468. The pattern holds in Cinebench R23, where the E5-2643 v3 reaches 8682 multicore and 1225 singlecore, versus 7910 and 1116 for the E-2144G.
The singlecore results are particularly telling. The E-2144G has a 0.80 GHz higher boost clock (4.50 GHz versus 3.70 GHz), yet it still loses singlecore tests by the same 8.9% margin. This indicates that raw clock speed is not the differentiator here; the E5-2643 v3’s architectural efficiency per clock, despite being an older 22 nm design, compensates for its lower frequency. In Geekbench, the E-2144G records 4875 multicore and 1508 singlecore, but no Geekbench scores are listed for the E5-2643 v3, so those results stand alone.
The average benchmark scores reinforce the near-parity: the E-2144G’s average is 2514, and the E5-2643 v3’s is 2511, a difference of only 0.1%. In the nearestRivals data, each processor lists the other as its closest competitor, with deltaPct values of 0.1% (favoring the E-2144G) and -0.1% (favoring the E5-2643 v3), depending on perspective. The E5-2643 v3 also edges out the E5-2630 v3 by 0.2%, while the E-2144G trails the E-2244G by 0.5% and the Core i3-10325 by 0.6%.
FAQ
Q: Which processor wins in multicore performance?
A: The Intel Xeon E5-2643 v3 wins all three Cinebench multicore tests: R15 (875 vs 797), R20 (3646 vs 3322), and R23 (8682 vs 7910). Each win carries a deltaPct of -8.9% for the E-2144G.
Q: Does the E-2144G’s higher boost clock help it win singlecore tests?
A: No. The E-2144G boosts to 4.50 GHz versus 3.70 GHz for the E5-2643 v3, yet it still loses every singlecore benchmark: R15 (112 vs 123), R20 (468 vs 514), and R23 (1116 vs 1225). The margin is identical to the multicore gap at -8.9%.
Q: How do these two processors compare in overall average score?
A: They are statistically tied. The E-2144G has an average benchmark score of 2514, and the E5-2643 v3 has 2511. The deltaPct between them is 0.1%, with each appearing as the other’s closest rival.
Q: What are the core and thread counts for each?
A: The E-2144G has 4 cores and 8 threads. The E5-2643 v3 has 6 cores and 12 threads. The E5-2643 v3 thus offers 50% more cores and threads.
Q: Do both processors support ECC memory?
A: Yes. Both the E-2144G and the E5-2643 v3 list ECC memory support as true.
Q: What is the release date difference?
A: The E5-2643 v3 was released on 2014-09-07, and the E-2144G was released on 2018-07-11. The E-2144G is therefore nearly four years newer.
Where Each One Wins
The E5-2643 v3 wins in every measured performance category. It leads in all Cinebench versions, both multicore and singlecore, by a consistent 8.9% margin. Its 6-core, 12-thread configuration provides a clear advantage in threaded workloads, as seen in the multicore scores. For singlecore, its architectural efficiency overcomes the E-2144G’s higher boost clock. The E5-2643 v3 also offers a larger L3 cache (20 MB shared versus 8 MB shared), a quad-channel memory bus with 68.3 GB/s bandwidth, and 40 PCIe Gen 3 lanes, compared to the E-2144G’s dual-channel 42.7 GB/s and 16 lanes.
The E-2144G’s wins are more limited but not nonexistent. It has a lower TDP of 71 watts versus 135 watts, making it far more power-efficient on paper. It includes integrated graphics (HD Graphics P630), which the E5-2643 v3 lacks entirely. Its 14 nm process node is smaller than the 22 nm node of the E5-2643 v3, and its die size is 126 mm² versus 356 mm². The E-2144G also has a higher boost clock (4.50 GHz vs 3.70 GHz) and a newer release date (2018 vs 2014). For workloads that rely on the integrated GPU or draw less power, the E-2144G is the practical choice.
Specification Differences
The two processors differ in nearly every core specification. The E-2144G has 4 cores and 8 threads; the E5-2643 v3 has 6 cores and 12 threads. Base clocks are 3.60 GHz for the E-2144G and 3.40 GHz for the E5-2643 v3, while boost clocks are 4.50 GHz and 3.70 GHz, respectively. TDPs diverge sharply: 71 watts for the E-2144G versus 135 watts for the E5-2643 v3. Sockets differ as well, the E-2144G uses Intel Socket 1151, and the E5-2643 v3 uses Intel Socket 2011-3.
Memory configurations are another major split. Both support DDR4, but the E-2144G uses a dual-channel bus with 42.7 GB/s bandwidth, while the E5-2643 v3 uses a quad-channel bus with 68.3 GB/s bandwidth. PCIe lanes also differ: 16 lanes (Gen 3) for the E-2144G versus 40 lanes (Gen 3) for the E5-2643 v3. The E-2144G includes integrated graphics (HD Graphics P630); the E5-2643 v3 has none. Release dates are 2018-07-11 for the E-2144G and 2014-09-07 for the E5-2643 v3. The E-2144G carries a launch MSRP of $272, while the E5-2643 v3 carries a launch MSRP of $1552.
Architecture Differences
The architectural divide is generational. The E-2144G is built on Coffee Lake (codename Coffee Lake-S WS) using a 14 nm process, with a die size of 126 mm². The E5-2643 v3 uses Haswell (codename Haswell-EP) on a 22 nm process, with a much larger 356 mm² die and 2,600 million transistors. The E-2144G lists no transistor count in the data.
Cache hierarchies are similar in structure but differ in capacity. Both have 64 KB L1 and 256 KB L2 per core. The L3 cache, however, is 8 MB shared on the E-2144G versus 20 MB shared on the E5-2643 v3. This 12 MB difference in L3 is substantial and likely contributes to the E5-2643 v3’s consistent lead in both multicore and singlecore tests, as more cache improves data locality.
The E5-2643 v3’s larger memory bandwidth (68.3 GB/s vs 42.7 GB/s) and quad-channel bus further distinguish it for memory-intensive server workloads. The E-2144G’s integrated GPU is a feature absent on the E5-2643 v3, marking a clear functional difference. Both are end-of-life, but the E-2144G belongs to the Xeon E-2100 series, while the E5-2643 v3 is part of the Xeon E5 (Haswell-EP) generation. Neither has an unlocked multiplier.
The Verdict
The data points to a clear performance winner: the Intel Xeon E5-2643 v3. It wins every benchmark in the head-to-head set, with a uniform 8.9% advantage across Cinebench R15, R20, and R23 in both singlecore and multicore modes. Its 6-core, 12-thread design, larger 20 MB L3 cache, and quad-channel memory with 68.3 GB/s bandwidth provide the structural basis for this lead. For workloads that demand raw CPU throughput, rendering, compilation, scientific computing, the E5-2643 v3 is the stronger choice, despite its higher 135-watt TDP and 22 nm process node.
The Intel Xeon E-2144G is not without merit. Its 71-watt TDP is nearly half that of the E5-2643 v3, making it more suitable for power-constrained environments. Its integrated HD Graphics P630 provides display output without a discrete GPU, a capability the E5-2643 v3 lacks entirely. Its higher boost clock (4.50 GHz) and newer 14 nm process are advantageous for lightly threaded tasks, even if the benchmark data shows it still loses those tests by the same margin. The E-2144G also occupies a smaller die (126 mm²) and uses the more common Socket 1151.
The choice depends on priorities. Users needing maximum performance in threaded and single-threaded workloads should select the E5-2643 v3, which outperforms the E-2144G in all six recorded benchmarks. Users prioritizing power efficiency, integrated graphics, or a newer platform should consider the E-2144G. The average scores are within 0.1% of each other, so the decision rests on secondary factors like TDP, memory channel count, and feature set rather than raw compute capability.