AMD Ryzen 7 PRO 5845 vs Intel Core i7-12700KF Comparison

The AMD Ryzen 7 PRO 5845 and Intel Core i7-12700KF are both desktop processors aimed at serious workloads, but their benchmark data reveals a significant performance gulf. The Intel part wins 16 of 17 head-to-head comparisons, often by margins exceeding 20%, while the AMD chip secures a single, narrow victory. This analysis breaks down where each processor excels, the architectural reasons behind the results, and which buyer should choose which.

Head-to-Head Benchmarks

The most striking pattern in the data is the consistency of Intel’s victory across nearly every workload type. In Cinebench tests, which are standard for rendering and CPU stress, the Core i7-12700KF leads by a nearly uniform margin. In Cinebench R23 multi-core, the Intel scores 28838 against the AMD’s 22145, a 23.2% difference. The same exact 23.2% delta appears in Cinebench R20 multi-core (12111 vs 9300), Cinebench R15 multi-core (2906 vs 2232), and Cinebench R23 single-core (4071 vs 3126). This uniformity suggests a consistent clock and IPC advantage rather than a workload-specific quirk. Single-core performance in Cinebench R20 shows the same 23.2% gap (1709 vs 1312), reinforcing that the Intel chip’s advantage scales evenly across both lightly-threaded and heavily-threaded rendering tasks.

The gap widens further in specific math-heavy tests. PassMark floating-point math is the largest single disparity: Intel’s 87449 crushes AMD’s 52105, a 40.4% deficit. This indicates a substantial advantage in scientific or financial workloads that rely heavily on floating-point operations. PassMark physics shows a similar trend, with Intel scoring 1780 versus AMD’s 1109, a 37.7% lead. These two results highlight that the Intel architecture handles complex calculations with notably higher throughput.

In integer performance, the margin is smaller but still decisive. PassMark integer math sees Intel at 113521 against AMD’s 94884, a 16.4% advantage. Data compression and encryption follow suit: Intel leads compression (441960 vs 314363, a 28.9% gap) and encryption (23181 vs 19815, a 14.5% gap). The extended instruction tests, which measure SIMD and AVX performance, also favor Intel by 26.3% (28650 vs 21117). Even in random string sorting, a test that often rewards memory bandwidth and cache efficiency, Intel wins by 25.2% (45150 vs 33754).

The AMD Ryzen 7 PRO 5845’s only victory comes in PassMark’s find prime numbers test, where it scores 115 versus Intel’s 112. That 2.7% margin is a rare bright spot, likely reflecting the Zen 3 core’s efficiency on this specific integer algorithm. However, it is an isolated result. In the aggregate PassMark multi-thread test, Intel leads 34092 to 26054, a 23.6% gap, and in single-thread, Intel’s 3984 beats AMD’s 3442 by 13.6%. The data is unambiguous: across rendering, math, compression, and general throughput, the Core i7-12700KF is the faster processor.

Where Each One Wins

For almost every task, the Intel Core i7-12700KF is the better choice based on benchmark results. The consistent 23% lead in Cinebench makes it the go-to for video editing, 3D rendering, and any other multi-threaded creative application. Its massive 40.4% advantage in floating-point math and 37.7% lead in physics calculations make it superior for simulations, scientific computing, and engineering software that relies on complex equations. The 28.9% lead in data compression and 25.2% in string sorting also suggest it handles database operations and file archiving more effectively. For gaming, the 13.6% single-thread lead and the 16.4% integer math advantage indicate better frame pacing in CPU-bound titles.

The AMD Ryzen 7 PRO 5845 has a much narrower set of wins. Its 2.7% lead in the find prime numbers test suggests it may have a slight edge in very specific cryptographic or number-theory workloads. Beyond that, the data does not show any other area where it beats the Intel chip. It is importantly the AMD part has a TDP of 65 watts compared to Intel’s 125 watts, and while the data does not include power consumption benchmarks, the lower rated TDP implies that the AMD chip may be the more power-efficient option for users building a system with modest cooling or power delivery. However, in terms of raw performance, the Intel part is the clear winner in every meaningful category.

FAQ

Q: Which processor has better multi-core rendering performance?

A: The Intel Core i7-12700KF is significantly faster. In Cinebench R23 multi-core, it scores 28838 versus the AMD Ryzen 7 PRO 5845’s 22145, a 23.2% advantage. The same margin appears in Cinebench R20 and R15 multi-core tests.

Q: How does single-core performance compare between the two?

A: Intel leads in all single-core tests. Cinebench R23 single-core shows Intel at 4071 and AMD at 3126, a 23.2% gap. PassMark single-thread has Intel at 3984 versus AMD’s 3442, a 13.6% lead.

Q: Is the AMD Ryzen 7 PRO 5845 better at any benchmark?

A: Yes, it wins the PassMark find prime numbers test, scoring 115 against Intel’s 112, a 2.7% margin. This is the only head-to-head benchmark it wins out of 17 total comparisons.

Q: What is the biggest performance difference between the two chips?

A: The largest gap is in PassMark floating-point math, where Intel scores 87449 and AMD scores 52105. That is a 40.4% difference in Intel’s favor.

Q: Do these processors support the same memory types?

A: No. The AMD Ryzen 7 PRO 5845 supports only DDR4 memory, while the Intel Core i7-12700KF supports both DDR4 and DDR5. Both use dual-channel memory buses.

Q: Which CPU has more cores and threads?

A: The Intel Core i7-12700KF has 12 cores and 20 threads. The AMD Ryzen 7 PRO 5845 has 8 cores and 16 threads. Intel also has a higher boost clock at 5.00 GHz versus 4.60 GHz for AMD.

Specification Differences

The core and thread counts are the primary differentiators. The Intel Core i7-12700KF offers 12 cores and 20 threads, while the AMD Ryzen 7 PRO 5845 offers 8 cores and 16 threads. Clock speeds also favor Intel: base clock is 3.60 GHz versus 3.40 GHz, and boost clock is 5.00 GHz versus 4.60 GHz. The thermal design power (TDP) differs substantially, with Intel rated at 125 watts and AMD at 65 watts. Socket compatibility is entirely different, as Intel uses Socket 1700 while AMD uses Socket AM4. Memory support diverges, as Intel supports both DDR4 and DDR5, whereas AMD supports only DDR4. The Intel chip has an unlocked multiplier, while the AMD chip does not. Intel’s launch MSRP was $384; the AMD chip has no listed launch MSRP. Both use dual-channel memory and have the same PCIe configuration of Gen 4 with 20 CPU lanes, and neither has integrated graphics.

Architecture Differences

The two CPUs come from fundamentally different designs. The AMD Ryzen 7 PRO 5845 is built on the Zen 3 architecture with the Vermeer codename, fabricated on a 7 nm process by TSMC with 4,150 million transistors on a 74 mm² die. Its cache layout includes 64 KB of L1 per core, 512 KB of L2 per core, and 32 MB of shared L3 cache. The Intel Core i7-12700KF uses the Alder Lake architecture (Alder Lake-S codename), built on Intel’s 10 nm process, with a much larger 215 mm² die. Its cache is larger per core, with 80 KB of L1 and 1.25 MB of L2 per core, but its shared L3 cache is smaller at 25 MB. Intel’s chip also supports ECC memory, while AMD’s does not. The memory bandwidth for AMD is listed at 51.2 GB/s, while Intel’s bandwidth is not specified. These architectural differences explain the benchmark results: Intel’s larger per-core L2 cache and higher clocks contribute to its single-thread lead, while the extra cores and threads provide the multi-core advantage.

The Verdict

The choice between these two processors is straightforward based on the data. The Intel Core i7-12700KF is the superior performer in nearly every benchmark category, with leads ranging from 13.6% in single-thread tests to over 40% in floating-point math. Its 12 cores and 20 threads provide a substantial multi-tasking and rendering advantage over the AMD’s 8 cores and 16 threads. The higher boost clock of 5.00 GHz and the support for DDR5 memory give it a modern edge. The Intel chip is the clear pick for users who prioritize raw performance in rendering, scientific computing, compression, and gaming. Its unlocked multiplier also appeals to enthusiasts who plan to overclock.

The AMD Ryzen 7 PRO 5845 has a single benchmark win and a significantly lower TDP of 65 watts. For users building a compact or power-conscious system where the 125-watt Intel chip might be overkill, the AMD part offers a quieter and potentially cooler operation. Its Zen 3 architecture on 7 nm is efficient, and its ECC memory support makes it suitable for specific workstation tasks that require error correction. However, the benchmark data shows that the AMD chip only wins the find prime numbers test by a small margin. For anyone who needs maximum throughput, the Intel Core i7-12700KF is the only logical choice. The AMD Ryzen 7 PRO 5845 is for niche builds where power efficiency and ECC support outweigh the significant performance deficit.