AMD Ryzen 3 2300X vs Intel Core i7-3930K Comparison

# AMD Ryzen 3 2300X vs Intel Core i7-3930K

The AMD Ryzen 3 2300X and Intel Core i7-3930K represent two very different eras of desktop computing, yet their average benchmark scores land nearly on top of each other. The Ryzen 3 2300X posts an average benchmark score of 1968, while the Core i7-3930K sits at 1960, a difference of less than half a percent. Both CPUs occupy the 44th percentile among all processors in the database. The head-to-head results, however, reveal a split personality: the older Intel chip dominates Cinebench workloads across the board, while the AMD part crushes it in Geekbench, particularly in single-core testing.

Head-to-Head Benchmarks

The Intel Core i7-3930K wins six of the eight head-to-head comparisons, and it does so with remarkable consistency. In Cinebench R15 multi-core, the i7-3930K scores 701 against the Ryzen 3 2300X’s 649, a 7.4% advantage. That pattern repeats almost exactly in single-core R15, where Intel leads 98 to 91, a 7.1% margin. Moving to Cinebench R20, the story is unchanged: Intel wins multi-core 2921 to 2706 (7.4% ahead) and single-core 412 to 381 (7.5% ahead). In Cinebench R23, the i7-3930K again takes multi-core with 6955 versus 6443 (7.4% ahead) and single-core with 981 versus 909 (7.3% ahead). Every Cinebench delta sits between 7.1% and 7.5%, a tightly clustered band that suggests the Intel chip’s advantage is structural rather than workload-specific.

The AMD Ryzen 3 2300X, however, turns the tables decisively in Geekbench. In Geekbench multi-core, the Ryzen scores 3351 against Intel’s 2991, a 12% lead. The single-core gap is even more dramatic: 1216 versus 617, a 97.1% advantage for AMD. That nearly doubles Intel’s single-core Geekbench score, a staggering margin that reflects the massive architectural gulf between the two chips. The Ryzen 3 2300X wins two of eight head-to-head comparisons, but those two wins are lopsided enough to keep the overall average scores nearly identical.

When placed against the nearest rivals in the database, both chips sit in a tight cluster. The Ryzen 3 2300X is 0.1% ahead of the AMD Ryzen 5 2600H, 0.2% behind the Intel Core i7-10810U, and 0.2% ahead of the Intel Xeon D-2712T. The Core i7-3930K is 0.2% behind that same Xeon D-2712T, 0.3% ahead of the AMD Ryzen 5 PRO 3400GE, and 0.3% behind the Ryzen 5 2600H. The two CPUs in this comparison are separated by only 0.4% in average score, with the Ryzen 3 2300X listed as the i7-3930K’s closest rival. This is a genuine toss-up in aggregate performance, with each chip claiming victory in distinctly different benchmark families.

The Verdict

The data points to two very different buyers for these CPUs. The Intel Core i7-3930K is the pick for anyone whose workload mirrors Cinebench’s rendering and multi-threaded content creation tasks. It wins every Cinebench test here by roughly 7.4%, and that consistency across R15, R20, and R23 makes it the safer choice for sustained multi-core rendering workloads. Its 6 cores and 12 threads, combined with 12 MB of shared L3 cache, give it a structural advantage in threaded compute that the Ryzen’s 4 cores and 4 threads simply cannot match.

The AMD Ryzen 3 2300X is the pick for Geekbench-style workloads, especially those that stress single-core performance. Its 97.1% single-core Geekbench lead over the i7-3930K is not a marginal improvement; it is a generational leap. For everyday responsiveness, lightly threaded applications, or any task that relies on single-thread speed, the Ryzen 3 2300X is the clear winner. Its 12% multi-core Geekbench lead also shows that its 4-core design is no slouch in that test, even if Cinebench tells a different story.

There is no universal winner here. The average benchmark scores are nearly identical, with the Ryzen 3 2300X at 1968 and the Core i7-3930K at 1960. Both sit at the 44th percentile. A user who values modern single-core performance and platform longevity should choose the Ryzen 3 2300X, which is still in active production. A user who prioritizes raw multi-threaded rendering performance and can tolerate an end-of-life platform should choose the Core i7-3930K. The Intel chip’s launch MSRP was $583, though that figure reflects its 2011 positioning rather than current market value.

Architecture Differences

The architectural divide between these two processors is vast, spanning nearly seven years of design evolution. The AMD Ryzen 3 2300X is built on the Zen architecture, specifically the Zen+ (Pinnacle Ridge) generation, using a 12 nm process node from GlobalFoundries. It packs 4,800 million transistors into a 213 mm² die. The Intel Core i7-3930K is a Sandy Bridge-E part, built on a 32 nm process by Intel, with 2,270 million transistors on a much larger 435 mm² die. The node difference is significant: 12 nm versus 32 nm, which explains why the AMD chip can fit more than twice the transistors on half the die area.

Core and thread counts diverge sharply. The Ryzen 3 2300X offers 4 cores and 4 threads, with no simultaneous multithreading. The Core i7-3930K offers 6 cores and 12 threads, doubling the thread count through Hyper-Threading. Cache hierarchies also differ. The Ryzen 3 2300X has 96 KB of L1 cache per core, 512 KB of L2 per core, and 4 MB of shared L3. The Core i7-3930K has 64 KB of L1 per core, 256 KB of L2 per core, and 12 MB of shared L3. Intel’s larger L3 pool compensates for its smaller per-core L1 and L2 caches.

Memory architecture is another fundamental split. The Ryzen 3 2300X supports DDR4 memory over a dual-channel bus, delivering 46.9 GB/s of bandwidth. The Core i7-3930K supports DDR3 over a quad-channel bus, delivering 51.2 GB/s. Despite the older memory type, Intel’s quad-channel configuration provides higher peak bandwidth. PCIe connectivity also favors Intel: the Core i7-3930K offers Gen 3 with 40 lanes from the CPU, while the Ryzen 3 2300X offers Gen 3 with 16 lanes. Neither chip includes integrated graphics, and neither supports ECC memory. Both have unlocked multipliers for overclocking.

Specification Differences

The two CPUs differ across nearly every specification field. Clock speeds favor AMD: the Ryzen 3 2300X runs at 3.50 GHz base and 4.00 GHz boost, while the Core i7-3930K runs at 3.20 GHz base and 3.80 GHz boost. Thermal design power heavily favors AMD as well: the Ryzen 3 2300X draws 65 watts, while the Core i7-3930K draws 130 watts, exactly double.

Sockets and platforms are incompatible. The Ryzen 3 2300X uses AMD Socket AM4, while the Core i7-3930K uses Intel Socket 2011. Memory support differs by generation: DDR4 for AMD, DDR3 for Intel. Memory channels differ: dual-channel for AMD, quad-channel for Intel. Memory bandwidth favors Intel at 51.2 GB/s versus AMD’s 46.9 GB/s. PCIe lanes heavily favor Intel at 40 versus AMD’s 16, though both are Gen 3.

Production status is a stark contrast. The Ryzen 3 2300X is listed as Active, with a release date of September 2018. The Core i7-3930K is End-of-life, with a release date of November 2011. The Intel chip has a launch MSRP of $583; the AMD chip has no launch MSRP listed. Process node, foundry, transistor count, and die size all differ as detailed above. L1 and L2 cache sizes per core are larger on AMD, while total L3 cache is larger on Intel. Part numbers also differ: YD230XBBM4KAFYD230XBBAFMPK for AMD versus SR0GWSR0KY for Intel.

FAQ

Q: Which CPU has the higher average benchmark score?

A: The AMD Ryzen 3 2300X has an average benchmark score of 1968, while the Intel Core i7-3930K has 1960. That is a difference of 0.4%, with the Ryzen 3 2300X listed as the i7-3930K’s nearest rival.

Q: Why does the Intel Core i7-3930K win all Cinebench tests?

A: The Core i7-3930K wins every Cinebench test by roughly 7.1% to 7.5%. This is consistent across R15, R20, and R23, in both single-core and multi-core variants. The Intel chip’s 6 cores and 12 threads, versus AMD’s 4 cores and 4 threads, likely drive this multi-threaded advantage, while its 12 MB of shared L3 cache helps in single-core tests.

Q: How large is the AMD Ryzen 3 2300X’s single-core Geekbench lead?

A: The Ryzen 3 2300X scores 1216 in Geekbench single-core, compared to the Core i7-3930K’s 617. That is a 97.1% advantage, meaning the AMD chip nearly doubles Intel’s score in this test.

Q: Which CPU is still in production?

A: The AMD Ryzen 3 2300X is listed as Active in production status. The Intel Core i7-3930K is listed as End-of-life. The Ryzen 3 2300X was released in September 2018, while the Core i7-3930K was released in November 2011.

Q: What are the core and thread counts for each CPU?

A: The AMD Ryzen 3 2300X has 4 cores and 4 threads. The Intel Core i7-3930K has 6 cores and 12 threads. This gives Intel a 2-to-1 thread advantage.

Q: Which CPU supports more PCIe lanes?

A: The Intel Core i7-3930K supports Gen 3 with 40 lanes from the CPU. The AMD Ryzen 3 2300X supports Gen 3 with 16 lanes from the CPU. Intel has more than double the PCIe lane count.