AMD EPYC 7343 vs Intel Core i9-13900T Comparison

FAQ

Q: Which processor has more cores?

A: The Intel Core i9-13900T has 24 cores, while the AMD EPYC 7343 has 16 cores. Both processors support 32 threads.

Q: What is the difference in single-thread performance?

A: The Intel Core i9-13900T dominates in single-thread workloads. It scores 4177 in PassMark single-thread, which is 34.4% higher than the EPYC 7343's score of 2740.

Q: Which CPU is better for multi-threaded workloads?

A: The AMD EPYC 7343 wins most multi-threaded tests, including Cinebench R23 multi-core (37097 vs 36517, a 1.6% lead) and PassMark multithread (43644 vs 43036, a 1.4% lead). However, the margin is small.

Q: What are the power consumption figures?

A: The AMD EPYC 7343 has a TDP of 190 watts, while the Intel Core i9-13900T has a TDP of 35 watts. This is a massive difference in thermal design power.

Q: Do both processors support ECC memory?

A: Yes, both the AMD EPYC 7343 and the Intel Core i9-13900T support ECC memory.

Q: Which processor has higher average benchmark scores?

A: The AMD EPYC 7343 has a higher average benchmark score of 64202, compared to 61723 for the Intel Core i9-13900T. The EPYC sits in the 93rd percentile of all CPUs, while the i9-13900T is in the 92nd.

Architecture Differences

The AMD EPYC 7343 is built on the Zen 3 architecture, codenamed Milan, using a 7 nm process from TSMC. It features 16 cores and 32 threads. The chip is composed of four dies, each measuring 81 mm², totaling a die size of 4x 81 mm², with 16,600 million transistors. It uses AMD Socket SP3 and targets the server/workstation market segment.

In contrast, the Intel Core i9-13900T uses the Raptor Lake architecture, specifically Raptor Lake-S, built on a 10 nm process from Intel. It has 24 cores and 32 threads, with a single die measuring 257 mm². It uses Intel Socket 1700 and is designed for desktop use.

Cache configurations differ significantly. The EPYC 7343 has 64 KB of L1 cache per core, 512 KB of L2 per core, and a massive 128 MB of shared L3 cache. The i9-13900T has 80 KB of L1 per core, 2 MB of L2 per core, and 36 MB of shared L3 cache. The EPYC's larger L3 pool is a key advantage for data-heavy server tasks.

Memory support also diverges. The EPYC 7343 uses DDR4 memory with an eight-channel bus and a memory bandwidth of 204.8 GB/s. The i9-13900T supports both DDR4 and DDR5, but only on a dual-channel bus, with no listed memory bandwidth figure. The EPYC also offers 128 PCIe Gen 4 lanes, while the i9-13900T provides 20 PCIe Gen 5 lanes. The Intel chip includes integrated UHD Graphics 770, while the EPYC has no integrated graphics.

Clock speeds tell a different story. The EPYC 7343 has a base clock of 3.20 GHz and a boost clock of 3.90 GHz. The i9-13900T has a notably low base clock of 1100.00 MHz, but a much higher boost clock of 5.30 GHz. This explains the Intel chip's single-thread advantage despite its lower base frequency.

The Verdict

The data points to a clear split based on workload and platform requirements. The AMD EPYC 7343 is the stronger choice for server and workstation environments where multi-threaded consistency, larger cache, and higher memory bandwidth matter. It wins 13 of the 17 head-to-head benchmark comparisons, including all Cinebench tests and most PassMark sub-tests.

The Intel Core i9-13900T is the better pick for desktop users who need high single-thread performance and very low power consumption. Its 35-watt TDP is a fraction of the EPYC's 190 watts, making it far easier to cool and more efficient in everyday desktop tasks. It wins 4 of the 17 head-to-head benchmarks, with decisive victories in single-thread and floating-point math.

For a typical desktop build, the i9-13900T's boost clock of 5.30 GHz and integrated graphics offer a practical, low-power solution. For a server rack or workstation with heavy multi-threaded loads, the EPYC 7343's 128 MB of L3 cache, eight-channel memory, and 128 PCIe lanes provide the infrastructure needed for serious compute tasks. The launch MSRP for the EPYC 7343 is $1565, while the i9-13900T has a launch MSRP of $549.

Specification Differences

The two processors differ across nearly every major specification. The EPYC 7343 has 16 cores and 32 threads, while the i9-13900T has 24 cores and 32 threads. Base clocks are 3.20 GHz for the AMD part and 1100.00 MHz for the Intel part. Boost clocks are 3.90 GHz versus 5.30 GHz, favoring Intel.

Thermal design power is drastically different: 190 watts for the EPYC versus 35 watts for the i9-13900T. The EPYC uses AMD Socket SP3, while the Intel chip uses Socket 1700. The EPYC is built on a 7 nm process from TSMC, while the i9-13900T uses a 10 nm process from Intel.

Cache layouts differ: the EPYC has 64 KB L1 per core, 512 KB L2 per core, and 128 MB shared L3. The i9-13900T has 80 KB L1 per core, 2 MB L2 per core, and 36 MB shared L3. Memory support is DDR4 with eight channels for AMD, versus DDR4/DDR5 with dual channels for Intel. The EPYC offers 128 PCIe Gen 4 lanes; the i9-13900T offers 20 PCIe Gen 5 lanes. Intel includes UHD Graphics 770; AMD has none. The release dates also differ: the EPYC launched in 2021, while the i9-13900T launched in 2023.

Head-to-Head Benchmarks

The AMD EPYC 7343 wins all six Cinebench tests, though by narrow margins. In Cinebench R23 multi-core, it scores 37097 versus 36517, a 1.6% lead. Single-core R23 shows a similar pattern: 5237 against 5155, also a 1.6% advantage. The same 1.6% margin appears across R15 and R20 in both multi-core and single-core tests.

The PassMark suite reveals larger swings. The EPYC 7343 wins data compression with a score of 589770, which is 9.6% ahead of the i9-13900T's 538254. Data encryption goes to AMD at 37454 versus 34415, an 8.8% edge. Extended instructions show a 19.9% lead for AMD (35626 vs 29719). The biggest gap is in find prime numbers, where the EPYC scores 382 against 175, a massive 118.3% difference. Physics also heavily favors AMD: 4774 versus 2497, a 91.2% lead. Random string sorting goes to AMD at 67576 versus 63358, a 6.7% gain.

The Intel Core i9-13900T wins four tests. Floating point math is its strongest result: 108779 versus 86311, a 20.7% advantage for Intel. Integer math is nearly tied, with Intel at 157324 and AMD at 156033, a 0.8% edge. The two single-thread tests show Intel far ahead: 4177 versus 2740, a 34.4% lead. These wins highlight Intel's strength in lightly threaded and math-heavy workloads.

Where Each One Wins

The AMD EPYC 7343 is the clear winner in server-style workloads. Its 128 MB of shared L3 cache and eight-channel DDR4 memory with 204.8 GB/s bandwidth give it a strong foundation for data compression, encryption, and extended instruction processing. The 118.3% lead in prime number finding and 91.2% lead in physics indicate excellent multi-threaded integer and simulation performance. The EPYC also edges out the i9-13900T in every Cinebench test, making it the better choice for rendering and CPU-bound creative tasks that scale with cores and cache.

The Intel Core i9-13900T wins where single-thread speed and power efficiency matter. Its 5.30 GHz boost clock delivers a 34.4% lead in single-thread performance, which translates to snappier desktop responsiveness and faster performance in lightly threaded applications like older games or office software. The 20.7% win in floating point math suggests strong performance in scientific or financial calculations that use SIMD instructions. The 35-watt TDP makes it ideal for small form factor builds, all-in-one systems, or any setup where heat and power are primary concerns.

The decision comes down to platform priorities. If the workload is multi-threaded, cache-hungry, and runs in a server environment, the EPYC 7343's 13 benchmark wins and 93rd percentile standing make it the logical pick. If the workload is single-threaded, power-sensitive, and desktop-oriented, the i9-13900T's 4 wins, including the dominant single-thread and floating-point results, make it the practical choice. The data shows two capable processors aimed at different corners of the market.