AMD Ryzen 3 3100 vs Intel Core i7-5775R Comparison

The AMD Ryzen 3 3100 and Intel Core i7-5775R sit almost level in the database's overall percentile rankings, at 46 and 45 respectively, yet the recorded head-to-head data shows the Ryzen 3 3100 winning every shared benchmark by a wide margin. Both are 4-core, 8-thread desktop processors with a 65 W TDP, but they come from very different eras and platforms: a 7 nm Zen 2 chip on Socket AM4 versus a 14 nm Broadwell chip soldered onto Intel BGA 1364. The similarity in percentile placement comes from averaging over different test sets; the direct comparisons tell a more one-sided story.

Head-to-Head Benchmarks

The four tests recorded for both processors all end in a win for the Ryzen 3 3100, and none of them are close.

The largest gap is in Cinebench R15 single-core: the Ryzen 3 3100 scores 178 against 90 for the Core i7-5775R, a 97.8 percent advantage. That near-doubling of single-threaded rendering throughput reflects how much per-core performance moved between Broadwell and Zen 2. The multi-core R15 result follows the same pattern: 991 versus 641, a 54.6 percent lead for the AMD chip despite identical core and thread counts.

Geekbench narrows the gap but does not change the outcome. In multi-core the Ryzen 3 3100 scores 4898 against 3996, a 22.6 percent advantage. In single-core it scores 1395 versus 1218, a 14.5 percent advantage.

The Core i7-5775R's database entries include Cinebench R20 and R23 runs that have no matching Ryzen 3 3100 results, so they cannot be compared directly. Within its own record, the i7-5775R scores 2671 multi-core and 376 single-core in R20, and 6360 multi-core and 897 single-core in R23. The Ryzen 3 3100's record includes 3DMark CPU results, with 660 in single-thread, 1267 in 2-thread, 2214 in 4-thread, 2972 in 8-thread, 2970 in max-threads, and 3001 in the 16-thread test, none of which have i7-5775R counterparts.

The aggregate scores are 2055 for the Ryzen 3 3100 and 2031 for the Core i7-5775R. Their nearest-rivals lists reinforce how evenly the broader database rates them: the Ryzen 3 3100 sits within a fraction of a percent of the Intel Core i7-8705G, Intel Core i3-10105T, AMD Ryzen 5 3400G, and Intel Core i7-7820HK, while the i7-5775R is statistically tied with the Intel Xeon E3-1240 v5, Xeon E3-1280 v5, Xeon E3-1260L v5, and Xeon E-2124G.

Architecture Differences

The architectural gap between these two is substantial. The Ryzen 3 3100 uses AMD's Zen 2 architecture, codename Matisse, manufactured on TSMC's 7 nm process. It packs 3,800 million transistors into a 74 mm² die. The Core i7-5775R uses Intel's Broadwell architecture on Intel's own 14 nm process, with a die size of 182 mm² and no transistor count recorded.

The cache hierarchy differs sharply. Both chips carry 64 KB of L1 per core, but the Ryzen 3 3100 doubles the L2 at 512 KB per core versus 256 KB per core, and its shared L3 is much larger at 16 MB against 6 MB. That cache advantage is a plausible contributor to the rendering benchmark gaps.

Clock speeds favor AMD as well: 3.60 GHz base and 3.90 GHz boost for the Ryzen 3 3100, against 3.30 GHz base and 3.80 GHz boost for the i7-5775R. The Ryzen chip also has an unlocked multiplier; the Intel chip does not.

Memory and platform support diverge completely. The Ryzen 3 3100 supports DDR4 on a dual-channel bus with 51.2 GB/s of bandwidth, while the i7-5775R supports DDR3 with 29.9 GB/s of bandwidth. On PCIe, the AMD chip offers Gen 4 with 16 CPU lanes versus Gen 3 with 16 CPU lanes on the Intel side. Neither supports ECC memory.

One defining difference: the Core i7-5775R includes integrated graphics, Iris Pro Graphics 6200, while the Ryzen 3 3100 has none and requires a discrete graphics card. The i7-5775R is also an end-of-life part on the soldered BGA 1364 package, whereas the Ryzen 3 3100 is listed as active on the upgrade-friendly Socket AM4. Their release dates are 2020-04-23 for the AMD part and 2015-05-14 for the Intel part. Launch MSRP was $99 for the Ryzen 3 3100 and $384 for the Core i7-5775R.

FAQ

Q: Which CPU is faster in the head-to-head benchmarks?

A: The AMD Ryzen 3 3100 wins all four shared tests. Its leads are 97.8 percent in Cinebench R15 single-core, 54.6 percent in R15 multi-core, 22.6 percent in Geekbench multi-core, and 14.5 percent in Geekbench single-core.

Q: Do they have the same core count and TDP?

A: Yes. Both are 4-core, 8-thread desktop processors with a 65 W TDP. The performance difference therefore comes from architecture, clocks, and cache rather than thread count.

Q: Does either CPU have integrated graphics?

A: The Intel Core i7-5775R has Iris Pro Graphics 6200. The Ryzen 3 3100 has no integrated graphics listed and needs a discrete card for display output.

Q: Can either processor be overclocked?

A: The Ryzen 3 3100 has an unlocked multiplier. The Core i7-5775R's multiplier is locked.

Q: What memory does each platform use?

A: The Ryzen 3 3100 supports DDR4 with 51.2 GB/s of bandwidth on a dual-channel bus. The i7-5775R supports DDR3 with 29.9 GB/s of bandwidth, also dual-channel.

Q: How do they rank against all CPUs in the database?

A: Nearly identically: the Ryzen 3 3100 sits in the 46th percentile and the i7-5775R in the 45th, even though the Ryzen chip dominates every direct comparison.

Specification Differences

• Socket: AMD Socket AM4 versus Intel BGA 1364 (soldered)
• Architecture: Zen 2 (Matisse) versus Broadwell
• Process node: 7 nm (TSMC) versus 14 nm (Intel)
• Base / boost clock: 3.60 / 3.90 GHz versus 3.30 / 3.80 GHz
• L2 cache: 512 KB per core versus 256 KB per core
• L3 cache: 16 MB shared versus 6 MB shared
• Transistors: 3,800 million versus not recorded
• Die size: 74 mm² versus 182 mm²
• Memory: DDR4 at 51.2 GB/s versus DDR3 at 29.9 GB/s
• PCIe: Gen 4, 16 CPU lanes versus Gen 3, 16 CPU lanes
• Integrated graphics: none versus Iris Pro Graphics 6200
• Multiplier: unlocked versus locked
• Production status: Active versus End-of-life
• Release date: 2020-04-23 versus 2015-05-14
• Launch MSRP: $99 versus $384

Identical fields include 4 cores, 8 threads, 65 W TDP, 64 KB L1 per core, dual-channel memory bus, no ECC support, desktop market segment, and part numbers 100-000000284 and SR2AL.

Where Each One Wins

The Ryzen 3 3100 wins every benchmark category the two share. It is ahead in single-threaded work by 97.8 percent in Cinebench R15 and 14.5 percent in Geekbench, and in multi-threaded work by 54.6 percent in R15 and 22.6 percent in Geekbench. For any compute task measured here, rendering included, the data gives the AMD chip a clean sweep. Its additional 3DMark CPU results, peaking at 3001 in the 16-thread test and 2972 at 8 threads, further document its scaling behavior.

The Core i7-5775R's advantage is not in raw CPU performance but in features. Iris Pro Graphics 6200 gives it display output and graphics capability without a discrete card, which the Ryzen 3 3100 cannot do. It is the only recorded win available to it: everything measured on the compute side belongs to the AMD part.

The Verdict

Strictly from the recorded data, the AMD Ryzen 3 3100 is the stronger processor. It wins all four head-to-head benchmarks, with margins ranging from 14.5 percent to 97.8 percent, on identical core and thread counts and the same 65 W TDP. It also offers a newer platform: DDR4 with substantially more memory bandwidth, PCIe Gen 4, a larger cache at every level beyond L1, an unlocked multiplier, an active production status, and a replaceable socketed package.

The Intel Core i7-5775R only makes sense where integrated graphics are required and no discrete card is possible, since its Iris Pro Graphics 6200 is the one capability the Ryzen 3 3100 lacks entirely. Its soldered BGA 1364 package and end-of-life status limit any platform path forward, and its DDR3 memory and PCIe Gen 3 support trail the AMD platform's specifications. For compute workloads of any thread count present in the database, the Ryzen 3 3100 is the clear pick.