AMD EPYC 7453 vs Intel Core i7-4790K Comparison

The AMD EPYC 7453 and Intel Core i7-4790K occupy entirely different corners of the processor market, and the benchmark data reflects that chasm. The EPYC 7453 is a 28-core, 56-thread server processor built on Zen 3, while the i7-4790K is a 4-core, 8-thread desktop part from the Haswell era. The performance gap is not a matter of incremental improvement; it is a structural difference in design goals. The data shows a clean sweep for the EPYC 7453 across all six head-to-head Cinebench tests, with the margin of victory hovering around the 500% mark in every single case. This is not a close contest, and the analysis below details exactly where each processor stands.

Head-to-Head Benchmarks

The most striking result is the sheer scale of the EPYC 7453's dominance. In Cinebench R23 multi-core, the EPYC 7453 scores 41,185, while the i7-4790K scores 6,855. That is a delta of 500.8%, meaning the AMD part delivers roughly six times the multi-threaded rendering performance. The same pattern repeats in Cinebench R20 multi-core, where the EPYC 7453 hits 17,297 versus 2,879 for the Intel chip, a 500.8% advantage. These are not marginal wins; they are the result of 28 physical cores versus 4, and the EPYC's 56 threads overwhelming the i7's 8.

Even in single-core tests, where the i7-4790K's high 4.40 GHz boost clock might be expected to help, the EPYC 7453 wins decisively. In Cinebench R23 single-core, the EPYC scores 5,814 against the i7's 967, a 501.2% delta. The i7-4790K's base clock of 4.00 GHz and boost of 4.40 GHz are higher than the EPYC's 2.75 GHz base and 3.45 GHz boost, but the Zen 3 architecture's instructions-per-clock advantage is overwhelming. The same story holds in Cinebench R15 single-core, where the EPYC scores 585 versus 97, and in R20 single-core, where it scores 2,441 versus 406. The deltas are 503.1% and 501.2%, respectively.

The closest comparison in the entire head-to-head set is still a 500.8% gap. The EPYC wins all six tests, and the i7-4790K has zero wins. The average benchmark score for the EPYC is 11,912, while the i7-4790K sits at 11,745, a difference of just 1.4% in overall average, but that average is skewed by the i7's additional PassMark and Geekbench tests, which are not part of the head-to-head Cinebench suite. Within the Cinebench tests that directly compare the two, the EPYC is in a different league entirely.

Where Each One Wins

The EPYC 7453 wins everywhere in the head-to-head data, so the use-case split is not about which processor is faster in a given task, but rather about which tasks are even relevant to each platform. The EPYC 7453 is a server/workstation part, and its benchmark results are built for heavy multi-threaded workloads. The Cinebench R23 multi-core score of 41,185 indicates it is suited for rendering, scientific computation, virtualization, and any workload that can scale across 56 threads. The eight-channel memory bus and 204.8 GB/s memory bandwidth further support this, though those figures are not directly benchmarked here.

The i7-4790K, by contrast, is a desktop processor with integrated graphics (Intel HD 4600) and a dual-channel memory bus. Its benchmark results, while far lower than the EPYC, are still relevant for legacy desktop tasks. For instance, its PassMark single-thread score is 2,466, and its Geekbench single-core score is 1,361. These are not competitive with the EPYC's Cinebench single-core scores, but they remain useful for older software that is not multi-threaded. The i7-4790K is also an unlocked multiplier part, meaning it can be overclocked, which is not a feature of the EPYC 7453. The data does not show any benchmark where the i7 wins, so the "win" for the i7 is purely in its platform characteristics: lower power consumption (88W TDP versus 225W), integrated graphics, and desktop socket compatibility.

FAQ

Q: Is the AMD EPYC 7453 faster than the Intel Core i7-4790K in every benchmark?

A: Yes. The head-to-head data shows the EPYC 7453 winning all six Cinebench tests, with deltas ranging from 500.8% to 503.1% in favor of the AMD part.

Q: What is the biggest performance gap between the two processors?

A: The largest delta is in Cinebench R15 single-core, where the EPYC 7453 scores 585 versus the i7-4790K's 97, a 503.1% advantage. The multi-core gaps are nearly identical, with both R20 and R23 multi-core showing 500.8% deltas.

Q: Does the i7-4790K have any advantage in clock speed?

A: Yes, the i7-4790K has a higher base clock of 4.00 GHz and a boost clock of 4.40 GHz, compared to the EPYC 7453's 2.75 GHz base and 3.45 GHz boost. However, this does not translate into a performance win in the Cinebench tests.

Q: Which processor has a higher average benchmark score?

A: The EPYC 7453 has an average benchmark score of 11,912, while the i7-4790K has an average of 11,745. The difference is 1.4% in favor of the EPYC, but this average includes different test suites for each processor.

Q: Are both processors in the same market segment?

A: No. The EPYC 7453 is a Server/Workstation processor, while the i7-4790K is a Desktop processor. The EPYC uses an AMD Socket SP3, and the i7 uses an Intel Socket 1150.

Q: What is the production status of each processor?

A: The EPYC 7453 is listed as Active, while the i7-4790K is End-of-life.

Specification Differences

The specifications differ in nearly every measurable field. The EPYC 7453 has 28 cores and 56 threads, while the i7-4790K has 4 cores and 8 threads. The EPYC's base clock is 2.75 GHz and boost is 3.45 GHz; the i7's base is 4.00 GHz and boost is 4.40 GHz. The EPYC has a TDP of 225W, the i7 has 88W. The EPYC uses AMD Socket SP3, the i7 uses Intel Socket 1150.

Memory support is another major split. The EPYC 7453 supports DDR4 with an eight-channel memory bus and 204.8 GB/s bandwidth, while the i7-4790K supports DDR3 with a dual-channel bus and 25.6 GB/s bandwidth. The EPYC supports ECC memory; the i7 does not. The EPYC provides PCIe Gen 4 with 128 lanes (CPU only), whereas the i7 provides PCIe Gen 3 with 16 lanes (CPU only). The i7-4790K includes integrated graphics (Intel HD 4600); the EPYC 7453 has no integrated graphics. The EPYC has a launch MSRP of $1570, and the i7 has a launch MSRP of $350. The EPYC is not multiplier unlocked, while the i7 is multiplier unlocked.

Architecture Differences

The architectural divide is generational. The EPYC 7453 is built on Zen 3 architecture, codenamed Milan, using a 7 nm process from TSMC. It contains 16,600 million transistors across a die size of 4x 81 mm². The i7-4790K is based on Haswell architecture, using a 22 nm process from Intel, with 1,400 million transistors on a 177 mm² die. The cache hierarchies differ significantly: the EPYC has 64 KB of L1 per core, 512 KB of L2 per core, and 64 MB of shared L3 cache. The i7 has 64 KB of L1 per core, 256 KB of L2 per core, and 8 MB of shared L3 cache.

The EPYC is part of the EPYC 7003 series, released in March 2021, and is still in active production. The i7-4790K is from the Core i7 (Haswell) generation, released in April 2014, and is end-of-life. The EPYC's memory controller is eight-channel, the i7's is dual-channel. The EPYC's PCIe interface is Gen 4 with 128 lanes, while the i7's is Gen 3 with 16 lanes. The EPYC is designed for server workloads, evidenced by its ECC memory support and higher bandwidth, whereas the i7 is a desktop part with integrated graphics and no ECC support.

The Verdict

The data is unambiguous: the AMD EPYC 7453 crushes the Intel Core i7-4790K in every head-to-head benchmark. The EPYC's 500%+ advantages in multi-core and single-core Cinebench tests are not just wins; they are a different class of performance. The EPYC is the only choice for anyone running multi-threaded server or workstation workloads that can utilize 28 cores and 56 threads. Its 64 MB of L3 cache, eight-channel memory, and 128 PCIe Gen 4 lanes make it a platform for heavy compute, not desktop tasks.

The i7-4790K, however, is not without a role, but that role is entirely legacy. Its 4 cores and 8 threads are sufficient for older desktop applications, and its integrated graphics and 88W TDP make it a low-power option for basic systems. Its unlocked multiplier is a feature for overclocking enthusiasts, but the benchmark results show that even overclocked, it cannot approach the EPYC's scores. The i7's launch MSRP of $350 reflects its desktop origins, but the EPYC's $1570 launch MSRP buys a vastly more capable processor.

For a builder assembling a new server or workstation, the EPYC 7453 is the obvious pick. For someone maintaining an old desktop system or building a basic, low-power PC, the i7-4790K still works, but it is end-of-life and offers no performance advantage in any comparison here. The verdict is simple: choose the EPYC 7453 for any serious compute workload, and only consider the i7-4790K if the platform constraints demand a legacy desktop socket with integrated graphics. The benchmark data does not support any other conclusion.