Intel Xeon E-2276G vs Intel Xeon W-2135 Comparison

Where Each One Wins

The benchmark data splits cleanly along a single axis: the Intel Xeon W-2135 wins every recorded test. In six head-to-head comparisons, the W-2135 takes all six, with deltas ranging from 2.0% to 2.3% over the Intel Xeon E-2276G. There is no workload category in the database where the E-2276G comes out ahead. The closest margin is a 2.0% lead for the W-2135 in Cinebench R15 multicore, R20 multicore, R23 multicore, and R23 singlecore. The widest margin is 2.3% in Cinebench R15 singlecore.

The W-2135's advantage is consistent across both single-threaded and multi-threaded workloads. In single-core tests, it leads by 2.3% in Cinebench R15 (173 versus 169) and by 2.1% in Cinebench R20 (723 versus 708). In multi-core tests, the lead sits at 2.0% across Cinebench R15, R20, and R23. This uniformity suggests the W-2135 holds a small but repeatable edge in every measurable scenario, rather than winning only in specific application types.

For users looking at Geekbench results, the E-2276G has recorded scores of 6551 multicore and 1610 singlecore. The W-2135 has no Geekbench entry in the database, so direct comparison in that test is not possible from recorded data. The Cinebench results, however, cover the full picture for both parts.

The E-2276G does have one practical distinction: it includes integrated graphics (HD Graphics P630), while the W-2135 has no integrated graphics at all. This matters for systems that need display output without a discrete GPU, though it does not appear in any benchmark score.

Architecture Differences

Both processors use Intel's 14 nm process node and are built by Intel, but they come from different architectures. The E-2276G is Coffee Lake, specifically the Coffee Lake-S WS die, while the W-2135 is Skylake, using the Skylake-W die. The die sizes reflect this split: the E-2276G measures 154 mm², the W-2135 measures 484 mm².

The core configurations are identical in count: 6 cores and 12 threads each. Base and boost clocks differ slightly. The E-2276G runs at 3.80 GHz base and 4.90 GHz boost. The W-2135 runs at 3.70 GHz base and 4.50 GHz boost. Despite the W-2135's lower clocks, it still wins every benchmark, which points to other architectural factors.

Cache organization is a major difference. The E-2276G has 64 KB L1 per core, 256 KB L2 per core, and 12 MB shared L3. The W-2135 has 64 KB L1 per core, 1 MB L2 per core, and 8.25 MB shared L3. The W-2135 has four times the L2 cache per core, while the E-2276G has more total L3. The W-2135's larger L2 likely contributes to its benchmark edge.

Memory support also diverges. The E-2276G uses dual-channel DDR4 with 42.7 GB/s bandwidth. The W-2135 uses quad-channel DDR4 with 85.3 GB/s bandwidth, exactly double the bandwidth. Both support ECC memory. The W-2135 also offers 48 PCIe Gen 3 lanes from the CPU, versus 16 lanes on the E-2276G. These platform-level differences make the W-2135 the more expandable part.

Sockets differ as well. The E-2276G fits Intel Socket 1151, while the W-2135 requires Intel Socket 2066. This means the two chips are not interchangeable in any motherboard. The TDP values also diverge sharply: the E-2276G is rated at 80 W, the W-2135 at 140 W. The W-2135 draws considerably more power to achieve its small performance lead.

The E-2276G has a launch MSRP of $362. The W-2135 has a launch MSRP of $835.

The Verdict

The data supports a straightforward conclusion: the Intel Xeon W-2135 is the faster processor in every recorded benchmark. It wins all six Cinebench tests, with margins between 2.0% and 2.3%. Anyone choosing strictly on performance from the database should select the W-2135.

The W-2135's wins are not large in percentage terms, but they are consistent. Every Cinebench iteration, from R15 through R23, shows the same 2.0% to 2.3% gap. This consistency across different rendering workloads indicates a genuine performance advantage rather than a test-specific anomaly.

The E-2276G is the more efficient choice in terms of power, with an 80 W TDP versus 140 W. It also includes integrated graphics, which the W-2135 lacks, and it fits the more common Socket 1151 platform. For systems constrained by power or requiring onboard display output, the E-2276G has clear practical merits.

However, the W-2135 counters with a quad-channel memory bus delivering 85.3 GB/s, 48 PCIe Gen 3 lanes, and a larger 484 mm² die. These platform features matter for workstation workloads that stress memory bandwidth or require many expansion devices. The benchmark scores alone do not capture these advantages, but they are part of the recorded specification data.

The percentile ranking for both parts is identical at 55, placing them in the same performance tier relative to all CPUs in the database. The average benchmark scores are close: 3614 for the E-2276G and 3530 for the W-2135. The E-2276G's average includes its Geekbench scores, which the W-2135 lacks, so the averages are not directly comparable.

For users who need the fastest recorded Cinebench performance and platform expandability, the W-2135 is the pick. For users who need integrated graphics, lower power draw, and a Socket 1151 platform, the E-2276G is the sensible alternative, accepting a small performance deficit.

FAQ

Q: Which processor is faster in Cinebench R23 multicore?

A: The Intel Xeon W-2135 scores 12205, while the Intel Xeon E-2276G scores 11957. The W-2135 leads by 2.0%.

Q: Does the E-2276G have integrated graphics?

A: Yes, the E-2276G includes HD Graphics P630. The W-2135 has no integrated graphics.

Q: How much memory bandwidth does each processor support?

A: The E-2276G supports dual-channel DDR4 with 42.7 GB/s. The W-2135 supports quad-channel DDR4 with 85.3 GB/s.

Q: What is the TDP of each processor?

A: The E-2276G is rated at 80 W. The W-2135 is rated at 140 W.

Q: Do both processors have the same core and thread count?

A: Yes, both have 6 cores and 12 threads.

Q: Which processor has more PCIe lanes?

A: The W-2135 has 48 PCIe Gen 3 lanes from the CPU. The E-2276G has 16 PCIe Gen 3 lanes.

Head-to-Head Benchmarks

The W-2135 wins every head-to-head comparison in the database. The smallest margins are 2.0% in four tests: Cinebench R15 multicore (1230 versus 1205), Cinebench R20 multicore (5126 versus 5021), Cinebench R23 multicore (12205 versus 11957), and Cinebench R23 singlecore (1723 versus 1688). The largest margin is 2.3% in Cinebench R15 singlecore (173 versus 169).

In Cinebench R20 singlecore, the W-2135 scores 723 against 708, a 2.1% lead. This pattern shows the W-2135's advantage is slightly larger in single-core R15 and R20 than in the multicore tests, though the differences are small.

The E-2276G's best recorded result relative to the W-2135 is in the multicore tests, where the gap narrows to 2.0%. Even so, the E-2276G never closes the gap entirely in any recorded benchmark.

Geekbench results exist only for the E-2276G: 6551 multicore and 1610 singlecore. Since the W-2135 has no Geekbench entry, the Cinebench suite provides the only complete comparison set.

The consistent 2.0% to 2.3% margins across all six tests indicate that the W-2135's performance advantage is not workload-dependent within the Cinebench suite. Whether the workload is single-threaded or multi-threaded, the W-2135 maintains roughly the same lead.

Specification Differences

The two processors differ in several key specification fields. The E-2276G has a base clock of 3.80 GHz and a boost clock of 4.90 GHz. The W-2135 has a base clock of 3.70 GHz and a boost clock of 4.50 GHz. The E-2276G runs faster at both clock points, yet loses every benchmark, underscoring that clock speed alone does not determine performance.

TDP differs substantially: 80 W for the E-2276G, 140 W for the W-2135. The socket is also different: Socket 1151 for the E-2276G, Socket 2066 for the W-2135.

Cache layouts diverge. The E-2276G has 256 KB L2 per core and 12 MB shared L3. The W-2135 has 1 MB L2 per core and 8.25 MB shared L3. Both share the same 64 KB L1 per core.

Memory channels and bandwidth differ: dual-channel with 42.7 GB/s for the E-2276G, quad-channel with 85.3 GB/s for the W-2135. PCIe lane counts also differ: 16 lanes for the E-2276G, 48 lanes for the W-2135.

Integrated graphics are present only on the E-2276G (HD Graphics P630). The W-2135 has none. Die size differs at 154 mm² for the E-2276G and 484 mm² for the W-2135. Both use 14 nm process technology and support ECC memory. The E-2276G belongs to the Xeon E-2200 series with Coffee Lake architecture; the W-2135 uses Skylake architecture. Release dates differ: the E-2276G launched in 2019, the W-2135 in 2017. Launch MSRP also differs: $362 for the E-2276G, $835 for the W-2135.