Intel Core i7-5775C vs Intel Xeon D-1715TER Comparison

Where Each One Wins

The benchmark data is unambiguous: the Intel Xeon D-1715TER wins every single head-to-head test recorded. Across six Cinebench runs, the Xeon takes the win in both single-core and multi-core workloads, with no victories for the Core i7-5775C. This is not a close contest with trading blows; it is a clean sweep.

Looking at the workload split, the Xeon D-1715TER leads in multi-core rendering by margins of 18% to 18.2%. In Cinebench R23 multi-core, the Xeon scores 7738 against the i7-5775C's 6549, a delta of 18.2%. The single-core results tell the same story: the Xeon's 1092 in R23 single-core beats the i7's 924 by the same 18.2% margin. Consistency across all six tests — R15, R20, R23, both multi and single — shows the Xeon's advantage is not workload-specific but a general performance lead.

Where the i7-5775C could theoretically claim relevance is in its integrated graphics. The i7-5775C includes Iris Pro Graphics 6200, while the Xeon D-1715TER has no integrated graphics at all. That makes the i7 the only option here if you need a CPU with built-in display output. However, the benchmark data provided contains no graphics tests, so this advantage is qualitative — it exists in specifications, not in measured performance.

For pure compute, the Xeon D-1715TER wins everywhere. The winsA count is 6, winsB is 0. That is the entire summary of head-to-head results.

The Verdict

If you are choosing based on the data in front of you, the Intel Xeon D-1715TER is the faster processor in every measured benchmark. It outperforms the Core i7-5775C by roughly 18% across the board — in Cinebench R15, R20, and R23, both multi-core and single-core. The margins are nearly identical, hovering between 17.2% and 18.2%, which indicates a consistent architectural advantage rather than a test-specific anomaly.

The i7-5775C, however, has two concrete reasons to exist. First, it has integrated graphics (Iris Pro Graphics 6200), which the Xeon completely lacks. If your build has no discrete GPU, the i7 is the only one of these two that will even display an image. Second, the i7-5775C has an unlocked multiplier, meaning it can be overclocked, while the Xeon D-1715TER is locked. The i7 also uses a standard desktop socket (Intel Socket 1150) and supports DDR3 memory, which could make it easier to slot into an existing older motherboard.

The Xeon D-1715TER targets a different audience entirely. It is a server/workstation part on Intel BGA 2227, meaning it is soldered to the board — no CPU upgrades, no socket swaps. It supports ECC memory, triple-channel DDR4, and PCIe Gen 4, none of which the i7 offers. It also consumes less power: 50W TDP versus 65W for the i7.

The verdict splits cleanly: for raw compute performance, pick the Xeon D-1715TER. For a desktop with integrated graphics, overclocking, and existing DDR3 compatibility, pick the Core i7-5775C. The data does not support any other conclusion.

Head-to-Head Benchmarks

The largest single win for the Xeon D-1715TER comes in Cinebench R23 multi-core, where it scores 7738 against the i7-5775C's 6549, a delta of 18.2%. The same 18.2% margin appears in R23 single-core (1092 vs 924). These are the most modern tests in the set, and the Xeon leads both by the widest percentage.

In Cinebench R20, the Xeon scores 3249 multi-core and 458 single-core; the i7 scores 2750 and 388, respectively. The multi-core delta is 18.1%, single-core is 18%. Cinebench R15 shows a similar pattern: Xeon at 779 multi-core and 109 single-core, i7 at 660 and 93. The multi-core delta is 18%, single-core is 17.2% — the smallest margin in the entire comparison.

Every test follows the same shape. The Xeon D-1715TER wins by 17-18% regardless of whether the workload scales across cores or runs single-threaded. Notably, the i7-5775C has a higher base clock (3.30 GHz vs 2.40 GHz) and higher boost clock (3.70 GHz vs 3.50 GHz), yet it still loses in every single-core test. That means the Xeon's Ice Lake architecture and newer 10 nm process more than compensate for its lower clock speeds.

The i7's only recorded benchmark wins come from Geekbench — but those tests were not run on the Xeon. The i7 posts 4989 multi-core and 1441 single-core in Geekbench, but with no Xeon Geekbench scores in the data, those numbers cannot be compared. In the six tests where both CPUs have scores, the Xeon wins all six.

FAQ

Q: Which CPU is faster in multi-core workloads?

A: The Intel Xeon D-1715TER wins all three multi-core tests. In Cinebench R23 multi-core, it scores 7738 versus 6549 for the Core i7-5775C, a lead of 18.2%. The R20 margin is 18.1% (3249 vs 2750), and R15 is 18% (779 vs 660).

Q: Does the Core i7-5775C win any benchmark?

A: No. In the six head-to-head Cinebench tests where both CPUs have scores, the Xeon D-1715TER wins all six. The i7-5775C has Geekbench scores (4989 multi-core, 1441 single-core), but there are no Xeon Geekbench results for comparison.

Q: Which CPU supports ECC memory?

A: The Intel Xeon D-1715TER supports ECC memory. The Intel Core i7-5775C does not support ECC memory.

Q: Can I overclock either CPU?

A: The Intel Core i7-5775C has an unlocked multiplier, allowing overclocking. The Intel Xeon D-1715TER has a locked multiplier and cannot be overclocked.

Q: Do these CPUs have integrated graphics?

A: Only the Core i7-5775C has integrated graphics (Iris Pro Graphics 6200). The Xeon D-1715TER has no integrated graphics, so it requires a discrete GPU for display output.

Q: How do these CPUs compare to their closest rivals?

A: The Xeon D-1715TER's average benchmark score is 2238, nearly identical to the AMD Ryzen 5 PRO 1500 (2246, a -0.3% delta) and the Intel Core i7-10710U (2248, -0.5%). The i7-5775C averages 2224, with its closest rival being the Intel Core i7-8559U at 2225 (0% delta). Both CPUs sit at the 47th percentile among all CPUs.

Architecture Differences

The two processors come from different eras and design philosophies. The Intel Xeon D-1715TER uses the Ice Lake architecture (specifically Ice Lake-D) on a 10 nm process, built by Intel. It is a server/workstation part with a BGA 2227 socket, meaning the CPU is soldered directly to the motherboard. The Core i7-5775C uses the Broadwell architecture on a 14 nm process, also built by Intel, but targets desktop use with a standard LGA 1150 socket.

Cache layouts differ substantially. The Xeon D-1715TER has 80 KB of L1 cache per core, 1.25 MB of L2 per core, and 10 MB of shared L3. The i7-5775C has 64 KB of L1 per core, 256 KB of L2 per core, and only 6 MB of shared L3. The Xeon's larger cache hierarchy aligns with its server positioning, while the i7's smaller caches reflect its older desktop design.

Memory architecture is another major split. The Xeon D-1715TER supports DDR4 memory with a triple-channel bus and a memory bandwidth of 64.0 GB/s. The i7-5775C supports DDR3 with a dual-channel bus and 25.6 GB/s bandwidth. That is a 2.5x difference in theoretical memory bandwidth. The Xeon also supports ECC memory, which the i7 does not.

PCIe capabilities differ by a generation. The Xeon D-1715TER has PCIe Gen 4 with 16 lanes (CPU only). The i7-5775C has PCIe Gen 3 with 16 lanes (CPU only). The Xeon also has no integrated graphics, while the i7 includes Iris Pro Graphics 6200.

The production status for both is listed as "Active," but the release dates could not be more different. The i7-5775C launched on May 14, 2015; the Xeon D-1715TER launched on February 23, 2022. The Xeon's 10 nm Ice Lake architecture is two process generations ahead of the i7's 14 nm Broadwell design.

Specification Differences

The core and thread counts are identical: both have 4 cores and 8 threads. That is where the similarity ends.

Clock speeds favor the i7-5775C on paper. The i7 has a 3.30 GHz base clock and 3.70 GHz boost, while the Xeon D-1715TER runs at 2.40 GHz base and 3.50 GHz boost. Despite the lower clocks, the Xeon wins every benchmark, showing that IPC gains from the newer architecture outweigh raw frequency.

Power consumption favors the Xeon. The Xeon D-1715TER has a 50W TDP, while the i7-5775C has a 65W TDP. The Xeon delivers higher performance while drawing less power — a direct result of the 10 nm process versus 14 nm.

Memory support is completely different. The Xeon uses DDR4 with a triple-channel bus and 64.0 GB/s bandwidth. The i7 uses DDR3 with a dual-channel bus and 25.6 GB/s bandwidth. The Xeon also supports ECC memory; the i7 does not.

PCIe generation differs: the Xeon has PCIe Gen 4 (16 lanes), the i7 has PCIe Gen 3 (16 lanes).

Integrated graphics: the i7-5775C has Iris Pro Graphics 6200; the Xeon D-1715TER has none.

The i7-5775C has an unlocked multiplier; the Xeon D-1715TER does not.

The i7-5775C has a launch MSRP of $366. The Xeon D-1715TER has no listed launch MSRP.

Socket types are incompatible: the Xeon uses Intel BGA 2227 (soldered), the i7 uses Intel Socket 1150 (LGA). The i7's die size is listed at 182 mm²; the Xeon's die size is not provided.

The i7-5775C's part number is SR2AG; the Xeon D-1715TER's is SRLBX.