AMD Ryzen 5 7500F vs AMD Ryzen 7 7840U Comparison

FAQ

Q: Which processor has more cores and threads?

A: The AMD Ryzen 7 7840U has 8 cores and 16 threads. The AMD Ryzen 5 7500F has 6 cores and 12 threads. The 7840U holds the core count advantage.

Q: How do the two chips compare in single-threaded performance?

A: The Ryzen 5 7500F wins every single-thread benchmark in the database. Its largest single-thread margin is in Cinebench R23 single-core, where it scores 3218 versus 1677.5 for the Ryzen 7 7840U, a delta of 47.9%. In 3DMark single-thread, the margin is narrower at 4.3%.

Q: Which processor has the higher boost clock?

A: The Ryzen 7 7840U boosts to 5.10 GHz, while the Ryzen 5 7500F boosts to 5.00 GHz. Despite the lower boost clock, the 7500F still leads in most measured workloads.

Q: Does either processor include integrated graphics?

A: Only the Ryzen 7 7840U includes integrated graphics, the Radeon 780M. The Ryzen 5 7500F has no integrated graphics, which means a discrete GPU is required for display output.

Q: What is the process node difference between the two?

A: The Ryzen 7 7840U is built on a 4 nm process, while the Ryzen 5 7500F uses a 5 nm process. Both are manufactured by TSMC.

Q: Which processor supports PCIe Gen 5?

A: The Ryzen 5 7500F supports PCIe Gen 5 with 24 lanes (CPU only). The Ryzen 7 7840U supports PCIe Gen 4 with 20 lanes (CPU only).

Where Each One Wins

The recorded benchmark data splits cleanly between the two processors. The Ryzen 5 7500F wins 20 of the 23 head-to-head comparisons. The Ryzen 7 7840U wins 3.

The 7500F dominates in CPU throughput tests that reward higher clocks and larger shared cache. In Cinebench R23 multicore, it scores 22799 versus 12719, a 44.2% advantage. Geekbench multicore also favors the desktop chip, 12362 versus 8766, a 29.1% margin. The 7500F leads in 3DMark across all thread counts, with deltas ranging from 4.3% single-thread to 16.3% at 4 threads. PassMark multithread, physics, and integer workflows all favor the 7500F as well.

The Ryzen 7 7840U takes its wins in specific PassMark subtests. It leads in floating point math, scoring 51767 versus 47176, a 9.7% advantage. It also wins integer math, 90852 versus 79108, a 14.8% edge. Data encryption goes to the 7840U by a slim 1% margin, 17691 versus 17510.

The use case is clear. The 7500F is the stronger general-purpose and multi-threaded performer, especially in rendering and physics simulations. The 7840U retains a niche in math-heavy workloads, likely due to its 8-core layout and higher memory bandwidth per watt envelope.

Architecture Differences

Both processors use AMD's Zen 4 architecture, but they come from different die families. The Ryzen 7 7840U is based on the Phoenix codename, built on a 4 nm TSMC process. The Ryzen 5 7500F is based on Raphael, built on a 5 nm process.

The 7840U packs 25,000 million transistors on a 178 mm² die. The 7500F has 6,570 million transistors on a 71 mm² die. The mobile chip is a monolithic design with a larger transistor budget, reflecting its integrated Radeon 780M graphics. The desktop chip has no integrated GPU, which explains its smaller die.

Cache organization differs substantially. Both have 64 KB L1 per core and 1 MB L2 per core. The L3 cache is where they diverge: the 7840U has 16 MB shared L3, while the 7500F has 32 MB shared L3. This doubling of L3 cache on the desktop part likely contributes to its strong performance in latency-sensitive workloads.

The 7840U is a mobile processor on AMD Socket FP8, with a 28 W TDP. The 7500F is a desktop processor on AMD Socket AM5, with a 65 W TDP. The desktop chip also has an unlocked multiplier, whereas the mobile part is locked. PCIe support differs as well: the 7500F offers Gen 5 with 24 lanes, the 7840U offers Gen 4 with 20 lanes.

Memory bandwidth is close but not identical. The 7840U supports 89.6 GB/s, the 7500F supports 83.2 GB/s. Both support DDR5, dual-channel memory, and ECC.

Specification Differences

The two processors differ in the following recorded specifications:

• Cores: 8 (7840U) versus 6 (7500F)
• Threads: 16 versus 12
• Base clock: 3.30 GHz versus 3.70 GHz
• Boost clock: 5.10 GHz versus 5.00 GHz
• TDP: 28 W versus 65 W
• Socket: FP8 versus AM5
• Codename: Phoenix versus Raphael
• Process node: 4 nm versus 5 nm
• Transistors: 25,000 million versus 6,570 million
• Die size: 178 mm² versus 71 mm²
• L3 cache: 16 MB shared versus 32 MB shared
• Memory bandwidth: 89.6 GB/s versus 83.2 GB/s
• PCIe: Gen 4, 20 lanes versus Gen 5, 24 lanes
• Integrated graphics: Radeon 780M versus none
• Market segment: Mobile versus Desktop
• Release date: not recorded versus 2023-07-21
• Launch MSRP: not recorded versus $179
• Multiplier unlocked: false versus true

Head-to-Head Benchmarks

The largest single margin in the entire comparison belongs to the Ryzen 5 7500F in Cinebench R23 single-core. It scores 3218 against the 7840U's 1677.5, a 47.9% lead. That is a decisive result for any workload relying on a single thread. The same pattern appears in Cinebench R15 single-core, where the 7500F scores 324 versus 264, an 18.5% advantage.

Cinebench R23 multicore shows the 7500F ahead by 44.2%, scoring 22799 versus 12719. The desktop chip also leads in Geekbench multicore by 29.1%, 12362 versus 8766. These results indicate that the 7500F's higher clocks and larger L3 cache overcome the 7840U's two extra cores.

In 3DMark, the 7500F wins every thread count. At 16 threads, it scores 6376 versus 5427, a 14.9% margin. At 8 threads, it leads 5372 versus 4583, a 14.7% gap. Even at 2 threads, the 7500F is ahead by 9.1%. The single-thread 3DMark result is the smallest margin in this suite, 974 versus 932, a 4.3% edge.

PassMark multithread favors the 7500F, 26825 versus 24782, a 7.6% advantage. PassMark physics shows a 29.8% lead for the 7500F, 1788 versus 1256. PassMark find prime numbers is the most lopsided subtest: the 7500F scores 199 versus 80, a 59.8% margin. PassMark extended instructions also goes to the 7500F, 22776 versus 20432, a 10.3% lead. Data compression and random string sorting both favor the 7500F by 5.7% and 6.7%, respectively. PassMark single-thread shows a 7.2% edge for the 7500F, 3841 versus 3565.

The Ryzen 7 7840U wins three PassMark subtests. Floating point math goes to the 7840U, 51767 versus 47176, a 9.7% margin. Integer math is its largest win, 90852 versus 79108, a 14.8% lead. Data encryption is nearly even, with the 7840U ahead 17691 versus 17510, a 1% margin.

The overall picture is consistent. The 7500F is the faster processor in the vast majority of recorded benchmarks, with particularly large leads in rendering, physics, and single-thread workloads. The 7840U holds specific advantages in math-heavy PassMark tests, but those wins are isolated. The database records 20 wins for the 7500F and 3 for the 7840U. Both processors sit at the 77th percentile among all CPUs, yet their average benchmark scores differ: 25432 for the 7840U and 24964 for the 7500F. The 7840U's nearest rival is the Intel Core i7-11700KF with a delta of 0%, while the 7500F's closest competitor is the Intel Core i7-11850H with a 0.1% delta. The benchmark data shows a clear performance hierarchy favoring the desktop part, despite the mobile chip's higher core count.