Intel Core i7-3770 vs Intel Xeon Gold 5320 Comparison

Head-to-Head Benchmarks

The recorded data shows a complete sweep for the Intel Xeon Gold 5320 across all six shared benchmark tests. In Cinebench R15 multicore, the Xeon Gold scores 3217 against the Core i7-3770's 549, a delta of -82.9% from the older chip's perspective. The single-core R15 result follows the same pattern: 454 for the Xeon versus 77 for the i7, a margin of -83%. These are not close contests; the Xeon Gold outperforms the i7-3770 by roughly six times in both metrics.

Moving to Cinebench R20, the multicore scores are 13408 for the Xeon Gold and 2289 for the i7-3770, again a -82.9% delta. Single-core R20 shows 1892 versus 322, a -83% difference. The pattern holds exactly in Cinebench R23, where the Xeon Gold reaches 31924 multicore and 4506 single-core, compared to 5450 and 769 for the i7-3770. Every single test records the same relative gap: the Xeon Gold leads by approximately 83% in the negative direction for the i7, meaning the i7 trails by a factor of about 5.8 to 5.9 across all workloads.

The breadth of the Xeon Gold's advantage is notable. It wins equally in single-threaded and multi-threaded tests, which suggests that the newer architecture delivers higher per-core performance as well as vastly more parallel throughput. The i7-3770 has zero wins in the head-to-head set, and the Xeon Gold takes all six. There is no benchmark category in this comparison where the older desktop processor comes out ahead.

Architecture Differences

The two processors come from fundamentally different eras and market segments. The Intel Core i7-3770 is built on the Ivy Bridge architecture, a 22 nm process with 1,400 million transistors on a 160 mm² die. It features 4 cores and 8 threads, with a base clock of 3.40 GHz and a boost clock of 3.90 GHz. Its thermal design power is 77 W, and it uses the Intel Socket 1155. The cache hierarchy includes 64 KB of L1 per core, 256 KB of L2 per core, and 8 MB of shared L3 cache. Memory support is DDR3 over a dual-channel bus, providing 25.6 GB/s of bandwidth. The i7-3770 does not support ECC memory and offers PCIe Gen 3 with 16 lanes from the CPU. It includes integrated Intel HD 4000 graphics, targets the desktop segment, and is end-of-life. Its release date was 2012-04-28.

The Intel Xeon Gold 5320 is a server and workstation part based on Ice Lake-SP, manufactured on a 10 nm process. It has 26 cores and 52 threads, with a base clock of 2.20 GHz and a boost clock of 3.40 GHz. The TDP is 185 W, and it uses the Intel Socket 4189. L1 cache is 64 KB per core, L2 is 1 MB per core, and L3 is 39 MB shared. Memory support is DDR4 over an eight-channel bus, delivering 191.6 GB/s of bandwidth. ECC memory is supported, and PCIe is Gen 4 with 64 lanes from the CPU. There is no integrated graphics. The Xeon Gold remains in active production, released on 2021-04-05.

The architectural gap explains the benchmark results. The Xeon Gold has 6.5 times the cores and 6.5 times the threads of the i7-3770, which directly drives the multicore performance delta. The single-core advantage comes from the newer Ice Lake architecture, which improves instructions per clock despite the lower base and boost frequencies. The Xeon Gold's boost clock of 3.40 GHz is lower than the i7-3770's 3.90 GHz, yet it still wins single-core tests by a wide margin, indicating that the newer microarchitecture is substantially more efficient per clock. The memory subsystem also differs dramatically: eight-channel DDR4 versus dual-channel DDR3, with 191.6 GB/s versus 25.6 GB/s, a 7.5 times bandwidth advantage. PCIe lane count and generation also favor the Xeon Gold, with 64 Gen 4 lanes versus 16 Gen 3 lanes.

Where Each One Wins

Based on the benchmark data, the Intel Xeon Gold 5320 wins in every measured category. There are no workloads in the recorded tests where the i7-3770 takes a lead. The Xeon Gold's 26 cores and 52 threads make it the clear choice for heavily parallel workloads such as multi-threaded rendering, scientific computation, and server-side processing. Its 39 MB of L3 cache and eight-channel memory bandwidth provide ample resources for data-intensive tasks that stress memory throughput. The single-core performance advantage also means that even lightly threaded applications run faster on the Xeon Gold, which is unusual for a server processor relative to an older desktop chip.

The i7-3770, despite losing every benchmark, still has a role in legacy systems. Its 77 W TDP is considerably lower than the Xeon Gold's 185 W, making it suitable for older desktop builds where power consumption is a concern. It supports integrated graphics, which the Xeon Gold lacks, so systems requiring a display output without a discrete GPU would need the i7-3770. The socket and memory type also differ: the i7-3770 uses DDR3 and Socket 1155, which may be present in existing machines, while the Xeon Gold requires the newer Socket 4189 and DDR4 infrastructure. However, from a pure performance standpoint, the Xeon Gold dominates in all recorded tests.

The data also places both processors in similar overall percentile ranks. The i7-3770 sits at the 66th percentile versus all CPUs, with an average benchmark score of 9706. The Xeon Gold is at the 65th percentile with an average score of 9234. This is counterintuitive given the Xeon's overwhelming head-to-head wins, but it reflects the broader database: the Xeon Gold's nearest rivals include the Intel Core i7-1165G7 (0% delta), Intel Core i5-10300H (-0.1%), Intel Xeon Platinum 8280M (-0.3%), and AMD Ryzen Threadripper 3960X (-0.5%). The i7-3770's nearest rivals are the Intel Core i5-1035G1 (0.2%), AMD EPYC 7402P (1.9%), Intel Core 3 N350 (-2%), and Intel Core i7-7700HQ (2.2%). Both processors cluster near other mid-tier parts in the database, despite the Xeon's massive core count advantage in this specific comparison.

FAQ

Q: Which processor is faster in single-core performance?

A: The Intel Xeon Gold 5320 wins all single-core tests. In Cinebench R23 single-core, it scores 4506 versus 769 for the i7-3770, a -82.9% delta. The same pattern appears in R15 and R20 single-core tests.

Q: How large is the multicore performance gap?

A: The Xeon Gold 5320 leads by -82.9% in Cinebench R15, R20, and R23 multicore tests. For example, R23 multicore shows 31924 for the Xeon versus 5450 for the i7-3770.

Q: What are the core and thread counts?

A: The i7-3770 has 4 cores and 8 threads. The Xeon Gold 5320 has 26 cores and 52 threads.

Q: Do these processors support ECC memory?

A: The Xeon Gold 5320 supports ECC memory. The i7-3770 does not.

Q: What is the memory bandwidth difference?

A: The i7-3770 provides 25.6 GB/s over dual-channel DDR3. The Xeon Gold 5320 provides 191.6 GB/s over eight-channel DDR4.

Q: Which processor has integrated graphics?

A: The i7-3770 includes Intel HD 4000 graphics. The Xeon Gold 5320 has no integrated graphics.

The Verdict

The benchmark data is unambiguous. The Intel Xeon Gold 5320 outperforms the Intel Core i7-3770 in every recorded test, with a consistent -82.9% to -83% delta across all Cinebench workloads. Anyone seeking maximum compute performance should choose the Xeon Gold 5320. Its 26 cores, 52 threads, 39 MB of L3 cache, and 191.6 GB/s of memory bandwidth make it a far more capable processor for both multi-threaded and single-threaded tasks.

The i7-3770 remains relevant only for legacy desktop systems where its 77 W TDP, integrated graphics, and DDR3 support are assets. It is end-of-life, whereas the Xeon Gold is still active. The Xeon Gold's higher TDP of 185 W and lack of integrated graphics are the only drawbacks, but these are typical for server and workstation parts and do not affect performance in the recorded benchmarks.

Given the complete sweep, the verdict is straightforward: the Xeon Gold 5320 is the better processor in every measurable way. The i7-3770 should only be considered for existing Socket 1155 platforms or builds that require integrated graphics and low power draw. For any workload represented in the database, the Xeon Gold delivers roughly six times the performance.