CPU Comparison

The Intel Core i7-7740X and Intel Xeon E-2274G are both four-core, eight-thread parts, but they target entirely different platforms and use cases. The data shows a near-total statistical dead heat in average benchmark scores (2648 vs 2643), yet the individual test results reveal distinct behavioral patterns. The 7740X edges ahead in Geekbench, while the E-2274G dominates the Cinebench suite. This page breaks down those differences using only the benchmark, specification, and rival data provided.

Head-to-Head Benchmarks

The benchmark results are remarkably close, with no test showing a double-digit percentage gap. The largest divergence is in Geekbench single-core, where the Core i7-7740X posts a 1619 score against the Xeon E-2274G’s 1586, a 2.1% advantage. In Geekbench multi-core, the 7740X again wins, scoring 5246 versus 5174, representing a 1.4% lead. These are the only two tests where the 7740X comes out ahead.

The Xeon E-2274G wins the remaining five tests, but its margins are consistently slim. In Cinebench R15 multi-core, it scores 835 versus 831, a 0.5% edge. The R15 single-core test is a perfect tie at 117 points, though the database credits the win to the 7740X due to a 0% delta. Moving to Cinebench R20, the E-2274G leads in both multi-core (3481 vs 3465, a 0.5% difference) and single-core (491 vs 488, a 0.6% difference). In Cinebench R23, the pattern holds: the Xeon wins multi-core with 8289 against 8250 (0.5%) and single-core with 1170 against 1164 (0.5%).

What this tells us: the 7740X has a slight edge in Geekbench’s memory-latency-sensitive and integer-heavy workloads, while the E-2274G consistently performs a fraction better in rendering-oriented Cinebench tests. The single-core R15 tie at 117 is notable, as it shows the two architectures can deliver identical performance in specific conditions. With a total win count of 5 for the E-2274G and 3 for the 7740X, the Xeon is the more consistent performer across this benchmark set, despite the 7740X having the higher average benchmark score (2648 vs 2643).

Architecture Differences

The two CPUs are built on the same 14 nm process node and are both manufactured by Intel, but they come from different architectural families. The 7740X is based on Kaby Lake, specifically the Kaby Lake-X variant, part of the Core i7 X-Series 7th Generation. The E-2274G is a Coffee Lake part, from the Coffee Lake-S WS workstation family, belonging to the Xeon E-2200 series. This generational split explains some behavioral differences, even at identical core counts.

Both chips have 4 cores and 8 threads, with matching cache layouts: 64 KB of L1 per core, 256 KB of L2 per core, and 8 MB of shared L3. The process node is identical at 14 nm. However, the die size differs significantly, the E-2274G has a die size of 126 mm², while no die size is listed for the 7740X. This suggests the Xeon includes additional integrated components, as indicated by its integrated graphics (HD Graphics P630), whereas the 7740X has no integrated graphics listed.

Memory architecture is a critical split. The 7740X supports quad-channel DDR4 memory, while the E-2274G is limited to dual-channel. The Xeon does have a listed memory bandwidth of 42.7 GB/s, which is not provided for the 7740X. This quad-channel versus dual-channel difference is likely the primary driver behind the 7740X’s Geekbench wins, as those tests often benefit from higher memory parallelism. Conversely, the E-2274G supports ECC memory, which the 7740X does not, making the Xeon more suitable for error-sensitive workloads.

The sockets are also incompatible: the 7740X uses Intel Socket 2066, while the E-2274G uses Intel Socket 1151. The 7740X has an unlocked multiplier, enabling overclocking, while the E-2274G is locked. PCIe support is Gen 3 for both, but the E-2274G specifies 16 lanes (CPU only), while the 7740X does not list lane counts.

Where Each One Wins

The 7740X is the pick for Geekbench-style workloads that reward memory bandwidth and latency characteristics. Its quad-channel memory bus gives it a structural advantage in multi-threaded integer and floating-point tests that scale with memory throughput. The 2.1% single-core and 1.4% multi-core Geekbench wins, while modest, are consistent and indicate a real edge in these specific synthetic workloads. The unlocked multiplier is another practical win for users who intend to push clock speeds beyond stock, though the benchmark data here is at default settings.

The E-2274G is the winner in every Cinebench iteration (R15, R20, R23) for both single-core and multi-core, with the sole exception of the R15 single-core tie. Its margins range from 0.5% to 0.6%, which is small but uniform across all rendering tests. This suggests its higher boost clock of 4.90 GHz (versus 4.60 GHz on the 7740X) provides a slight but consistent advantage in sustained single-threaded and lightly-threaded rendering workloads. The Xeon also has the benefit of ECC memory support, making it the appropriate choice for workstation environments where data integrity is non-negotiable, even though this does not directly impact the benchmark scores.

For mixed-use scenarios, the average benchmark scores are nearly identical, 2648 for the 7740X and 2643 for the E-2274G, a 0.2% delta. Neither CPU holds a meaningful overall performance lead. The choice comes down to platform features: the 7740X offers quad-channel memory and overclocking, while the E-2274G offers ECC, integrated graphics, and a lower TDP (83 W versus 112 W).

Specification Differences

The two processors differ across several core specification fields, with the most impactful being memory and power characteristics.

• Base Clock: The 7740X runs at 4.30 GHz, while the E-2274G has a lower base of 4.00 GHz.
• Boost Clock: The E-2274G reverses the situation, boosting to 4.90 GHz versus 4.60 GHz on the 7740X.
• TDP: The 7740X draws 112 W, while the E-2274G is rated at 83 W.
• Socket: The 7740X uses Intel Socket 2066; the E-2274G uses Intel Socket 1151.
• Architecture / Codename: Kaby Lake (Kaby Lake-X) on the 7740X versus Coffee Lake (Coffee Lake-S WS) on the E-2274G.
• Generation: Core i7 X-Series 7th Gen versus Xeon E (Coffee Lake).
• Die Size: Not listed for the 7740X; 126 mm² for the E-2274G.
• Memory Bus: Quad-channel on the 7740X versus dual-channel on the E-2274G.
• Memory Bandwidth: Not listed for the 7740X; 42.7 GB/s for the E-2274G.
• ECC Memory: Not supported on the 7740X; supported on the E-2274G.
• Integrated Graphics: None listed on the 7740X; HD Graphics P630 on the E-2274G.
• PCIe: Both are Gen 3, but the E-2274G specifies 16 lanes (CPU only), while the 7740X does not list lane counts.
• Multiplier Unlocked: Yes on the 7740X; no on the E-2274G.
• Market Segment: Desktop on the 7740X versus Server/Workstation on the E-2274G.
• Production Status: Active on the 7740X versus End-of-life on the E-2274G.
• Release Date: 2017-06-25 for the 7740X versus 2019-05-28 for the E-2274G.
• Launch MSRP: Not listed for the 7740X; the E-2274G has a launch MSRP of $328.
• Part Number: Not listed for the 7740X; SRFDE for the E-2274G.

FAQ

Q: Which CPU has a higher average benchmark score?

A: The Intel Core i7-7740X has an average benchmark score of 2648, while the Intel Xeon E-2274G scores 2643, a delta of 0.2%.

Q: How does the single-core Cinebench R15 performance compare?

A: Both CPUs score exactly 117 points in Cinebench R15 single-core, resulting in a 0% delta. The database credits the win to the Core i7-7740X.

Q: What is the largest performance gap between the two in any benchmark?

A: The largest gap is in Geekbench single-core, where the Core i7-7740X scores 1619 against the Xeon E-2274G’s 1586, a 2.1% advantage.

Q: Does the Xeon E-2274G support error-correcting memory?

A: Yes, the Intel Xeon E-2274G supports ECC memory, while the Intel Core i7-7740X does not.

Q: What is the difference in memory bus width?

A: The Core i7-7740X supports quad-channel DDR4, while the Xeon E-2274G supports dual-channel DDR4 with a listed bandwidth of 42.7 GB/s.

Q: Which CPU has a higher boost clock?

A: The Intel Xeon E-2274G has a boost clock of 4.90 GHz, which is higher than the 4.60 GHz boost clock on the Intel Core i7-7740X.