AMD Ryzen 3 3300X vs Intel Core i7-5775C Comparison

Head-to-Head Benchmarks

The recorded data shows a decisive sweep for the AMD Ryzen 3 3300X across every shared benchmark. In Cinebench R15 multi-core, the AMD part scores 1071 against the Intel Core i7-5775C's 660, a delta of -38.4% from the Intel chip's perspective. That is not a marginal gap; it is a generational leap in throughput for heavily threaded workloads. The single-core Cinebench R15 result is even more lopsided: 195 for the Ryzen versus 93 for the Intel, a -52.3% delta. The Intel chip's single-core score here is less than half of what the Ryzen manages, which points to a fundamental difference in per-thread efficiency.

Geekbench tells a similar story, though the margins shrink. In Geekbench multi-core, the Ryzen 3 3300X posts 5772 against the Intel's 4989, a -13.6% delta. In single-core, the Ryzen scores 1555 versus 1441, a -7.3% delta. The single-core gap is relatively modest compared to the Cinebench R15 single-core result, but the direction is consistent: AMD wins every head-to-head test in the database. The Intel Core i7-5775C records zero benchmark wins against the Ryzen 3 3300X, while the Ryzen takes all four comparisons.

It is worth reading the Cinebench R15 single-core number carefully. A score of 93 for the Intel chip seems low next to its own Geekbench single-core result of 1441, but the database records both without adjustment. The Ryzen's 195 in the same test is more than double, which suggests the AMD architecture extracts far more work per clock in this specific workload. The multi-core Cinebench R15 result reinforces that pattern: the Ryzen's 1071 is 62% higher than the Intel's 660. Across the board, the Ryzen 3 3300X is the faster processor by every measured metric.

The Verdict

The data points to a clear recommendation for most builders: the AMD Ryzen 3 3300X outperforms the Intel Core i7-5775C in every benchmark the database compares. The Ryzen wins multi-core and single-core tests in both Cinebench R15 and Geekbench. There is no recorded scenario where the Intel part takes the lead. The Ryzen also reaches those scores with a higher base clock of 3.80 GHz and a boost clock of 4.30 GHz, versus the Intel's 3.30 GHz base and 3.70 GHz boost, so the clock advantage aligns with the performance advantage.

The Intel Core i7-5775C does have one notable feature the Ryzen lacks: integrated graphics. The Iris Pro Graphics 6200 is present on the Intel chip, while the Ryzen 3 3300X has no integrated graphics at all. A builder who needs a display output without a discrete GPU must consider that. But for raw CPU performance, the verdict is unambiguous. The Ryzen's average benchmark score of 2148 sits just below the Intel's 2224, yet the head-to-head results favor the Ryzen in every direct test. The percentile ranking is identical for both at 47, placing them in the same overall tier, but the direct comparisons show the Ryzen as the stronger chip.

The production status for both is listed as Active, so neither is discontinued. The Ryzen 3 3300X is the newer design, released in 2020, while the Intel chip dates to 2015. The launch MSRP for the Intel part is $366, and the launch MSRP for the AMD part is $120, though the database offers no current pricing. On the basis of measured performance alone, the Ryzen 3 3300X is the better pick for anyone who already has a graphics card and wants the faster CPU.

Architecture Differences

The two processors come from different foundries and process nodes. The Intel Core i7-5775C uses Intel's 14 nm process, built in-house, while the AMD Ryzen 3 3300X uses TSMC's 7 nm process. The die size reflects that difference: the Intel chip measures 182 mm², while the AMD chip is just 74 mm². The transistor count for the Ryzen is listed at 3,800 million, while the Intel part has no published transistor count in the database. The smaller process node gives AMD a density and efficiency advantage that shows up in the benchmark results.

The architectures themselves are generations apart. Intel uses the Broadwell architecture, with the codename Broadwell, and belongs to the Core i7 (Broadwell) generation. AMD uses Zen 2, with the codename Matisse, and belongs to the Ryzen 3 (Zen 2 (Matisse)) generation. Both chips have 4 cores and 8 threads, so the thread count is identical. The cache layout differs significantly. Both have 64 KB of L1 cache per core. The L2 cache is 256 KB per core on the Intel chip and 512 KB per core on the AMD chip, so the Ryzen has double the L2 per core. The L3 cache is 6 MB shared on the Intel part versus 16 MB shared on the AMD part, a substantial difference in total cache footprint.

Memory support also diverges. The Intel chip uses DDR3 memory with a dual-channel bus and a memory bandwidth of 25.6 GB/s. The AMD chip uses DDR4 with a dual-channel bus and a memory bandwidth of 51.2 GB/s. That is exactly double the bandwidth. Neither chip supports ECC memory. The PCIe implementation differs as well: the Intel part offers Gen 3 with 16 lanes from the CPU, while the AMD part offers Gen 4 with 16 lanes from the CPU. The Ryzen therefore has both a newer memory standard and a newer PCIe standard.

The integrated graphics situation is a major architectural difference. The Intel Core i7-5775C includes Iris Pro Graphics 6200, which makes it a viable option for systems without a discrete GPU. The AMD Ryzen 3 3300X has no integrated graphics, so a separate graphics card is mandatory. The sockets are incompatible: Intel uses Socket 1150, while AMD uses Socket AM4. Both chips have an unlocked multiplier, so overclocking is possible on either platform.

FAQ

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

A: The AMD Ryzen 3 3300X wins in all recorded multi-core tests. In Cinebench R15 multi-core, it scores 1071 versus the Intel Core i7-5775C's 660, a -38.4% delta. In Geekbench multi-core, it scores 5772 versus 4989, a -13.6% delta.

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

A: The AMD Ryzen 3 3300X also wins every single-core test. In Cinebench R15 single-core, it scores 195 versus 93, a -52.3% delta. In Geekbench single-core, it scores 1555 versus 1441, a -7.3% delta.

Q: Do both CPUs have the same core and thread count?

A: Yes, both have 4 cores and 8 threads. They also share the same 65 W TDP. The performance difference comes from architecture, clocks, cache, and memory support, not from raw core counts.

Q: Does the Intel Core i7-5775C have integrated graphics?

A: Yes, it includes Iris Pro Graphics 6200. The AMD Ryzen 3 3300X has no integrated graphics, so it requires a discrete GPU for any display output.

Q: What memory types do these CPUs support?

A: The Intel Core i7-5775C supports DDR3 with a dual-channel bus and 25.6 GB/s bandwidth. The AMD Ryzen 3 3300X supports DDR4 with a dual-channel bus and 51.2 GB/s bandwidth. Neither supports ECC memory.

Q: What is the release date difference between them?

A: The Intel Core i7-5775C was released on 2015-05-14, while the AMD Ryzen 3 3300X was released on 2020-04-23. The Ryzen is the newer design by roughly five years.

Where Each One Wins

The AMD Ryzen 3 3300X wins every benchmark category recorded in the head-to-head comparison. That includes Cinebench R15 multi-core, Cinebench R15 single-core, Geekbench multi-core, and Geekbench single-core. The largest margin is in Cinebench R15 single-core, where the Ryzen leads by 52.3%. The smallest margin is in Geekbench single-core, where the Ryzen leads by 7.3%. The Ryzen also has a higher base clock and boost clock, double the L2 cache per core, a much larger L3 cache, faster memory bandwidth, and a newer PCIe generation. For compute-heavy tasks such as rendering, compilation, or general productivity, the Ryzen is the clear choice.

The Intel Core i7-5775C does not win any benchmark in the database comparison, but it has one practical advantage: the integrated Iris Pro Graphics 6200. A system built around the Intel chip can run with no discrete GPU, which matters for basic office work, media playback, or troubleshooting. The Ryzen 3 3300X has no integrated graphics, so every such system needs a separate graphics card. If the use case is a lightweight desktop with no gaming or GPU compute, the Intel part is the only one of the two that can function without an add-in card.

The Intel chip also belongs to Socket 1150, which may be relevant to someone upgrading an existing Broadwell-era platform. The Ryzen uses Socket AM4, which is a different ecosystem. Neither socket is cross-compatible. The Intel part's DDR3 support may be useful for reusing old memory, while the Ryzen requires DDR4. The data shows no performance scenario where the Intel chip wins, so the practical decision hinges on platform constraints and the need for integrated graphics.

Specification Differences

The two CPUs differ in nearly every specification category. The Intel Core i7-5775C has a base clock of 3.30 GHz and a boost clock of 3.70 GHz. The AMD Ryzen 3 3300X has a base clock of 3.80 GHz and a boost clock of 4.30 GHz. Both have a 65 W TDP. The process node is 14 nm for Intel and 7 nm for AMD, with the Intel chip manufactured in-house and the AMD chip built by TSMC. The die size is 182 mm² for Intel and 74 mm² for AMD. The Ryzen has 3,800 million transistors; the Intel chip has no listed transistor count.

Cache configurations differ in L2 and L3. Both have 64 KB of L1 per core. The Intel L2 is 256 KB per core, while the AMD L2 is 512 KB per core. The Intel L3 is 6 MB shared, while the AMD L3 is 16 MB shared. Memory support is DDR3 for Intel and DDR4 for AMD, both dual-channel. Memory bandwidth is 25.6 GB/s for Intel and 51.2 GB/s for AMD. PCIe support is Gen 3 with 16 lanes for Intel and Gen 4 with 16 lanes for AMD. The Intel chip includes Iris Pro Graphics 6200, while the AMD chip has no integrated graphics.

Sockets, architecture, and generation are all different. Intel uses Socket 1150 with the Broadwell architecture, while AMD uses Socket AM4 with the Zen 2 architecture. The Intel part is in the Core i7 (Broadwell) generation, and the AMD part is in the Ryzen 3 (Zen 2 (Matisse)) generation. The Intel launch MSRP is $366, and the AMD launch MSRP is $120. Both have unlocked multipliers. The Intel part number is SR2AG, and the AMD part number is 100-000000159. The release dates are 2015-05-14 for Intel and 2020-04-23 for AMD. Both are listed as Active production status and target the Desktop market segment.