AMD Ryzen 5 PRO 4650G vs Intel Xeon E-2278G Comparison

The Intel Xeon E-2278G and AMD Ryzen 5 PRO 4650G represent two distinct philosophies for the same performance tier, both landing at the 57th percentile among all CPUs. The Xeon is a legacy 8-core workstation part built on a 14 nm process, while the Ryzen is a 6-core desktop chip on a 7 nm node. Benchmark results reveal a split verdict: the AMD chip wins every Cinebench test, albeit by narrow margins of 1% to 1.4%, while the Intel chip dominates Geekbench by double-digit percentages. The data suggests the Ryzen 5 PRO 4650G is the more consistent all-rounder for threaded productivity, whereas the Xeon E-2278G offers a significant edge in Geekbench workloads that may reflect legacy single-thread optimizations. Neither processor is a clear winner; the choice hinges on whether the user prioritizes Cinebench-style rendering or Geekbench-style application responsiveness.

The Verdict

The benchmark data presents a clear but nuanced picture: the AMD Ryzen 5 PRO 4650G wins six of eight head-to-head tests, while the Intel Xeon E-2278G wins the remaining two with far larger margins. For users running Cinebench R15, R20, or R23 — typical rendering and 3D modeling workloads — the Ryzen 5 PRO 4650G is the data-backed choice, despite having fewer cores. Its multicore scores of 1379 (R15), 5747 (R20), and 13685 (R23) all edge out the Xeon's 1360, 5670, and 13502 respectively, with deltas of -1.4%, -1.3%, and -1.3%. The single-core Cinebench results follow the same pattern, with the AMD chip leading by 1% to 1.4% across all three versions. However, the Intel Xeon E-2278G strikes back decisively in Geekbench, posting a multicore score of 7354 versus 6629 (a 10.9% lead) and a single-core score of 1633 versus 1440 (a 13.4% lead). This suggests that for applications that scale with Geekbench-style integer and floating-point performance, the Xeon is substantially faster.

The average benchmark score (4052 for Intel, 3977 for AMD) places the Xeon slightly ahead, and its nearest rival list includes the AMD Ryzen 5 PRO 4655G with a 1% delta, indicating close competition within the AMD family. The Ryzen's nearest rivals include the Intel Core i7-6900K (0.2% delta), showing it competes with older high-end desktop parts. For a server or workstation environment where ECC memory support matters, both CPUs offer it, but the Xeon's 95 W TDP and Intel Socket 1151 platform target that market explicitly. The Ryzen 5 PRO 4650G, with its 65 W TDP and AMD Socket AM4, is a desktop part that happens to support ECC. In summary, the data recommends the AMD chip for Cinebench-centric workflows and the Intel chip for Geekbench-heavy applications, with neither holding a universal advantage.

Architecture Differences

The two processors come from fundamentally different design eras. The Intel Xeon E-2278G is built on the Coffee Lake architecture (specifically Coffee Lake-S WS) using a 14 nm process from Intel's own foundry, with a die size of 180 mm². It packs 8 cores and 16 threads, with a base clock of 3.40 GHz and a boost clock of 5.00 GHz. The AMD Ryzen 5 PRO 4650G uses the Zen 2 architecture (codenamed Renoir), fabricated on TSMC's 7 nm process, with a die size of 156 mm² and 9,800 million transistors. This is a 6-core, 12-thread part with a base clock of 3.70 GHz and a boost clock of 4.20 GHz. The core count difference is significant: the Xeon has 33% more cores, yet the Ryzen still wins multicore Cinebench tests, pointing to superior IPC (instructions per clock) per core in Zen 2.

Cache layouts differ as well. Both have 64 KB of L1 cache per core, but the Xeon's L2 is 256 KB per core versus the Ryzen's 512 KB per core. The L3 cache tells a different story: the Xeon has 16 MB shared, while the Ryzen has only 8 MB shared. This means the Intel part has twice the L3 capacity, which could benefit certain workloads, but the Ryzen's larger L2 per core may compensate. Memory bandwidth also favors the AMD chip: it offers 51.2 GB/s versus the Xeon's 42.7 GB/s, despite both using dual-channel DDR4. The Ryzen's integrated graphics are the Radeon Vega 7, while the Xeon uses Intel HD Graphics P630, but no benchmark data is provided for either iGPU.

Process node and foundry differences are stark: Intel uses 14 nm, AMD uses 7 nm, with the latter being denser and more power-efficient. The Ryzen's TDP is 65 W, significantly lower than the Xeon's 95 W. PCIe support is Gen 3 for both, but the Xeon specifies 16 lanes (CPU only), while the Ryzen does not specify lane count. The Xeon is end-of-life, released in May 2019, while the Ryzen is active, released in July 2020. The Xeon has a launch MSRP of $494, while the Ryzen's launch MSRP is null in the data. Neither has an unlocked multiplier, so overclocking is not an option for either. The Xeon's market segment is server/workstation, while the Ryzen is desktop-oriented, though both support ECC memory.

FAQ

Q: Which CPU has more cores, and does that translate to better Cinebench scores?

A: The Intel Xeon E-2278G has 8 cores and 16 threads, versus the AMD Ryzen 5 PRO 4650G's 6 cores and 12 threads. Despite having fewer cores, the AMD chip wins all Cinebench multicore tests: R15 1379 vs 1360, R20 5747 vs 5670, and R23 13685 vs 13502. This indicates the Ryzen's per-core efficiency compensates for its core deficit.

Q: What is the single largest performance gap between these two CPUs?

A: The largest gap is in Geekbench single-core, where the Intel Xeon E-2278G scores 1633 versus the AMD's 1440, a 13.4% advantage. The second-largest is Geekbench multicore, where Intel leads 7354 to 6629, a 10.9% margin. All other tests favor AMD by less than 1.5%.

Q: Do both CPUs support ECC memory for workstation reliability?

A: Yes, both the Intel Xeon E-2278G and the AMD Ryzen 5 PRO 4650G list ECC memory support as true. This makes both viable for error-correcting memory setups, though the Xeon's server/workstation market segment suggests a more formal enterprise orientation.

Q: How do these CPUs compare in terms of power consumption?

A: The AMD Ryzen 5 PRO 4650G has a TDP of 65 W, while the Intel Xeon E-2278G has a TDP of 95 W. This 30 W difference is consistent with the Ryzen's 7 nm process versus the Xeon's 14 nm node, offering a power efficiency advantage to AMD.

Q: Which processor is newer, and what does that mean for availability?

A: The AMD Ryzen 5 PRO 4650G was released in July 2020 and is marked as active in production. The Intel Xeon E-2278G was released in May 2019 and is end-of-life. This means the AMD part is more likely to be available new, while the Intel is a legacy product.

Q: What do the average benchmark scores and percentiles indicate?

A: Both CPUs are at the 57th percentile of all CPUs. The Intel Xeon E-2278G has an average benchmark score of 4052, while the AMD Ryzen 5 PRO 4650G scores 3977. Intel's nearest rivals include the AMD Ryzen Threadripper 1900X (-0.5% delta) and Intel Core i5-12500TE (-0.8%), while AMD's rivals include the AMD Ryzen 7 PRO 5875U (0.2%) and Intel Xeon D-2733NT (-0.2%).

Specification Differences

The two processors diverge on nearly every core specification. The Intel Xeon E-2278G offers 8 cores and 16 threads, while the AMD Ryzen 5 PRO 4650G provides 6 cores and 12 threads. Base clocks are 3.40 GHz for Intel and 3.70 GHz for AMD, but boost clocks favor Intel at 5.00 GHz versus AMD's 4.20 GHz. TDP differs substantially: 95 W for Intel, 65 W for AMD. Sockets are incompatible: Intel Socket 1151 versus AMD Socket AM4. Architecture nodes are generations apart: Intel's Coffee Lake on 14 nm versus AMD's Zen 2 on 7 nm, with the AMD chip built by TSMC and the Intel chip by Intel's own foundry. Die size is 180 mm² for Intel and 156 mm² for AMD, with the latter containing 9,800 million transistors.

Cache configurations differ in L2 and L3. Both have 64 KB L1 per core, but L2 is 256 KB per core for Intel and 512 KB per core for AMD. L3 is 16 MB shared for Intel versus 8 MB shared for AMD. Memory bandwidth also differs: Intel offers 42.7 GB/s, AMD offers 51.2 GB/s, though both use dual-channel DDR4. PCIe support is Gen 3 for both, but Intel specifies 16 lanes (CPU only), while AMD does not list a lane count. Integrated graphics are HD Graphics P630 for Intel and Radeon Vega 7 for AMD. The Intel part is end-of-life with a launch MSRP of $494, while the AMD part is active with no launch MSRP listed. Market segments also differ: Intel targets server/workstation, AMD targets desktop. Neither has an unlocked multiplier.

Head-to-Head Benchmarks

The head-to-head data reveals a pattern of narrow AMD wins and decisive Intel victories. In Cinebench R15 multicore, the AMD Ryzen 5 PRO 4650G scores 1379 against the Intel's 1360, a delta of -1.4% favoring AMD. The R15 single-core test is closer: AMD 194, Intel 192, a 1% edge for AMD. Moving to R20, AMD wins multicore with 5747 versus 5670 (-1.3%) and single-core with 811 versus 800 (-1.4%). R23 continues the trend: AMD leads multicore 13685 to 13502 (-1.3%) and single-core 1932 to 1906 (-1.3%). Across all six Cinebench tests, AMD's margin never exceeds 1.4%, indicating that the Xeon's extra cores and higher boost clock nearly compensate for the Ryzen's architectural efficiency.

The Geekbench results flip the script entirely. The Intel Xeon E-2278G wins multicore with 7354 versus AMD's 6629, a delta of 10.9% in Intel's favor. The single-core Geekbench test shows an even larger gap: Intel scores 1633, AMD scores 1440, giving Intel a 13.4% lead. These two wins for Intel are the largest deltas in the entire comparison, dwarfing AMD's narrow Cinebench margins. The win count is 6 for AMD and 2 for Intel, but the magnitude of Intel's wins suggests that Geekbench workloads — often more memory-latency-sensitive and less parallel — favor the Xeon's higher boost clock of 5.00 GHz and larger 16 MB L3 cache. The AMD chip's Cinebench wins, while consistent, are small enough that a single driver update or silicon variation could alter the outcome.

Where Each One Wins

The AMD Ryzen 5 PRO 4650G wins all Cinebench tests, making it the data-supported pick for rendering workloads that use the Cinebench engine. Its multicore scores of 1379 (R15), 5747 (R20), and 13685 (R23) all lead, despite a 2-core disadvantage. This suggests that Zen 2's IPC advantage and higher base clock of 3.70 GHz matter more than raw core count in these tests. The Ryzen also wins all single-core Cinebench tests, with margins of 1% to 1.4%, indicating better per-thread performance in these specific benchmarks. Its lower 65 W TDP and active production status make it a more practical choice for new builds, especially in desktop environments where power efficiency is a concern. The 51.2 GB/s memory bandwidth could also benefit memory-intensive Cinebench scenes.

The Intel Xeon E-2278G wins both Geekbench tests, and it wins them substantially. The multicore score of 7354 is 10.9% ahead, and the single-core score of 1633 is 13.4% ahead. This makes the Xeon the better choice for applications that mimic Geekbench's workload mix, which includes compression, encryption, and image processing tasks. The 5.00 GHz boost clock and 16 MB L3 cache likely drive these wins, providing higher peak single-thread performance and more cache capacity for data reuse. The Xeon's server/workstation market segment, ECC support, and 95 W TDP position it for multi-year stability in professional environments. For users who rely on Geekbench scores as a proxy for general application responsiveness, the Intel part offers a decisive edge, though its end-of-life status and higher TDP are drawbacks. The data does not show a winner for memory bandwidth or PCIe throughput, as those are spec differences without benchmark evidence.