Intel Xeon E-2278G vs Intel Xeon W-2140B Comparison

Head-to-Head Benchmarks

The benchmark database places these two eight-core Xeon processors in close overall company, but the head-to-head results reveal a clear split between sustained multi-threaded workloads and single-thread responsiveness. The Intel Xeon W-2140B wins 7 of the 8 recorded head-to-head comparisons, while the Intel Xeon E-2278G claims only one, albeit by a substantial margin.

Starting with the Cinebench suite, the W-2140B demonstrates a consistent advantage across all six tests. In Cinebench R15 multi-core, the W-2140B scores 1480 against 1360 for the E-2278G, a delta of 8.8%. The single-core R15 test shows a similar pattern: 209 versus 192, again an 8.9% lead for the W-2140B. Moving to R20, the multi-core result is 6170 versus 5670, an 8.8% advantage, while single-core is 871 versus 800, an 8.9% gap. The R23 tests continue the trend: multi-core 14692 versus 13502 (8.8% ahead), and single-core 2074 versus 1906 (8.8% ahead). These numbers indicate that in rendering workloads, the W-2140B holds a steady, roughly 9% edge regardless of test version or thread count.

The Geekbench results tell a different story. In Geekbench multi-core, the W-2140B edges out the E-2278G by a narrow 0.4%, scoring 7381 versus 7354. This is a much tighter margin than the Cinebench tests, suggesting that the two processors are nearly equivalent when all cores are engaged in this particular benchmark. However, in Geekbench single-core, the E-2278G delivers a decisive victory: 1633 versus 1299, a 20.5% lead for the E-2278G. This is the largest delta in the entire head-to-head set, and it flips the narrative for light-threaded applications.

Interpreting these results requires looking beyond raw scores. The W-2140B's consistent Cinebench leads point to superior sustained multi-threaded throughput, likely benefiting from its larger die and higher memory bandwidth. The E-2278G's Geekbench single-core win indicates a significant advantage in latency-sensitive, single-threaded tasks, which is reinforced by its higher boost clock. The overall average benchmark scores place the W-2140B at 4272 and the E-2278G at 4052, a difference of roughly 5.4% in favor of the older chip. In the database's percentile rankings, the W-2140B sits at the 58th percentile of all CPUs, while the E-2278G is at the 57th, a marginal difference that aligns with their average score gap.

The nearest rival data provides additional context. The W-2140B's closest competitor is the Intel Xeon E5-4669 v3, which scores 4285 and is 0.3% higher. It also trades blows with the AMD Ryzen 7 PRO 5750G (4296, 0.6% higher) and the Intel Core i7-1265U (4248, 0.6% lower). The E-2278G sits near the AMD Ryzen Threadripper 1900X (4073, 0.5% higher) and the Intel Core i5-12500TE (4083, 0.8% higher), while edging out the Intel Core i5-12400T (4019, 0.8% lower) and the AMD Ryzen 5 PRO 4655G (4010, 1% lower). These positions reinforce the overall picture: both chips are mid-pack performers, with the W-2140B having a slight aggregate edge.

The Verdict

The data points to two distinct use cases for these processors, and neither is a universal winner. For multi-threaded workloads such as video rendering, 3D modeling, or heavy compilation, the Intel Xeon W-2140B is the stronger choice. Its 8.8% lead across every Cinebench multi-core test, from R15 through R23, is a consistent and repeatable advantage. The narrow 0.4% Geekbench multi-core win further supports this, showing that even in a benchmark where the E-2278G performs well, the W-2140B still comes out ahead. The W-2140B also holds a higher average benchmark score (4272 versus 4052) and a better percentile ranking (58th versus 57th).

For single-threaded tasks, however, the Intel Xeon E-2278G is clearly superior. The 20.5% Geekbench single-core margin is substantial, and it indicates that applications relying on per-core performance, such as legacy software, certain database queries, or lightly threaded simulations, will run noticeably faster on the E-2278G. Interestingly, the E-2278G loses the Cinebench single-core tests by 8.9%, which suggests that its single-core strength is workload-specific rather than universal. Users prioritizing Geekbench-style integer and floating-point single-thread performance should favor the E-2278G.

The verdict is therefore split: pick the W-2140B for sustained multi-threaded throughput and memory bandwidth, pick the E-2278G for single-threaded speed and lower power draw. The W-2140B wins more benchmarks overall, but the E-2278G wins the one test that matters most for certain application profiles.

FAQ

Q: Which processor has the higher overall average benchmark score?

A: The Intel Xeon W-2140B has an average benchmark score of 4272, while the Intel Xeon E-2278G has 4052.

Q: How much faster is the E-2278G in Geekbench single-core?

A: The E-2278G scores 1633 versus 1299 for the W-2140B, a 20.5% advantage.

Q: Does the W-2140B win all multi-threaded tests?

A: Yes, the W-2140B wins all Cinebench multi-core tests (R15, R20, R23) with 8.8% leads, and also wins Geekbench multi-core by 0.4%.

Q: What is the memory bandwidth difference?

A: The W-2140B supports quad-channel DDR4 with 85.3 GB/s bandwidth, while the E-2278G supports dual-channel DDR4 with 42.7 GB/s.

Q: Which processor has integrated graphics?

A: Only the Intel Xeon E-2278G has integrated graphics, in the form of HD Graphics P630.

Q: What is the launch MSRP of the E-2278G?

A: The launch MSRP is $494.

Specification Differences

The two processors differ in several key specification fields. The base clock of the W-2140B is 3.20 GHz, while the E-2278G starts at 3.40 GHz. The boost clock shows a larger gap: the W-2140B boosts to 4.20 GHz, whereas the E-2278G reaches 5.00 GHz. Thermal design power favors the E-2278G at 95 watts, compared to 120 watts for the W-2140B. The socket types are incompatible: the W-2140B uses Intel Socket 2066, and the E-2278G uses Intel Socket 1151.

Memory configuration differs substantially. The W-2140B supports quad-channel DDR4 with a theoretical bandwidth of 85.3 GB/s, while the E-2278G is limited to dual-channel DDR4 at 42.7 GB/s. PCIe lane counts also diverge: the W-2140B provides 48 Gen 3 lanes from the CPU, while the E-2278G offers 16 Gen 3 lanes. The E-2278G includes integrated HD Graphics P630, whereas the W-2140B has no integrated graphics. Die size is another clear difference: 484 mm² for the W-2140B versus 180 mm² for the E-2278G. Release dates are separated by roughly a year and a half: the W-2140B launched in December 2017, and the E-2278G in May 2019.

Architecture Differences

Both processors are built on Intel's 14 nm process node, but they belong to different architectural families. The W-2140B uses the Skylake-W architecture, codenamed Skylake-W, while the E-2278G is based on Coffee Lake, specifically the Coffee Lake-S WS variant. This architectural split explains several observed differences. The L2 cache structure is notably different: the W-2140B has 1 MB of L2 cache per core, while the E-2278G has 256 KB per core. The L3 cache, however, favors the E-2278G, which has 16 MB shared, versus 11 MB shared on the W-2140B. Both have 64 KB of L1 cache per core.

The memory controller design is a direct result of the platform differences. The W-2140B's quad-channel memory bus with 85.3 GB/s bandwidth is a hallmark of the Skylake-W server platform, which targets memory-intensive workstation workloads. The E-2278G's dual-channel design, at 42.7 GB/s, is more typical of the Coffee Lake desktop-derived platform, despite its server positioning. The PCIe lane count reinforces this: 48 lanes on the W-2140B allow for multiple expansion cards, while 16 lanes on the E-2278G are sufficient for a single high-bandwidth device. Both processors support ECC memory, which is critical for their server/workstation market segment. The production status for both is end-of-life.

Where Each One Wins

The Intel Xeon W-2140B is the winner in scenarios that stress multiple cores and memory bandwidth. Its 8.8% advantage across Cinebench R15, R20, and R23 multi-core tests makes it the pick for 3D rendering, video encoding, and other throughput-bound tasks. The quad-channel memory bus, with 85.3 GB/s of bandwidth, provides a substantial edge for workloads that scale with memory throughput, such as large dataset processing or scientific computing. The 48 PCIe lanes support multi-GPU configurations or high-speed storage arrays, making the W-2140B more suitable for a workstation that needs to expand. Its higher average benchmark score (4272) and better percentile rank (58th) confirm its aggregate performance lead.

The Intel Xeon E-2278G is the winner for single-threaded performance and power efficiency. The 20.5% Geekbench single-core lead is decisive, and the 5.00 GHz boost clock gives it a clear edge in lightly threaded applications. The 95 watt TDP makes it easier to cool and more power-efficient than the 120 watt W-2140B. The integrated HD Graphics P630 is a practical advantage for systems that need a display output without a discrete GPU. The dual-channel memory and 16 PCIe lanes are sufficient for entry-level servers or compact workstation builds. The E-2278G's 16 MB L3 cache may also benefit certain cache-sensitive workloads, though the benchmark data does not isolate this effect. The launch MSRP of $494 provides a reference point for its market positioning.

In summary, the W-2140B wins on raw multi-threaded compute and platform expandability, while the E-2278G wins on single-thread speed, power draw, and integrated graphics. The database's head-to-head record, 7 wins for the W-2140B and 1 for the E-2278G, quantifies the overall balance, but the nature of the workloads should guide the final decision.