AMD Ryzen Z1 vs AMD Ryzen 7 7840U

Comparative analysis of AMD Ryzen Z1 and AMD Ryzen 7 7840U processors for all known characteristics in the following categories: Essentials, Performance, Memory, Compatibility, Peripherals. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark.

AMD Ryzen Z1

AMD Ryzen 7 7840U

Differences

Reasons to consider the AMD Ryzen Z1

Around 87% lower typical power consumption: 15 Watt vs 28 Watt
Around 4% better performance in PassMark - Single thread mark: 3756 vs 3604

Specifications (specs)
Thermal Design Power (TDP)	15 Watt vs 28 Watt
Benchmarks
PassMark - Single thread mark	3756 vs 3604

Reasons to consider the AMD Ryzen 7 7840U

2 more cores, run more applications at once: 8 vs 6
4 more threads: 16 vs 12
Around 4% higher clock speed: 5.1 GHz vs 4.9 GHz
Around 33% more L1 cache; more data can be stored in the L1 cache for quick access later
Around 33% more L2 cache; more data can be stored in the L2 cache for quick access later
Around 32% better performance in PassMark - CPU mark: 24956 vs 18933

Specifications (specs)
Number of cores	8 vs 6
Number of threads	16 vs 12
Maximum frequency	5.1 GHz vs 4.9 GHz
L1 cache	64K (per core) vs 64K (per core)
L2 cache	1MB (per core) vs 1MB (per core)
Benchmarks
PassMark - CPU mark	24956 vs 18933

Compare benchmarks

CPU 1: AMD Ryzen Z1
CPU 2: AMD Ryzen 7 7840U

PassMark - Single thread mark

CPU 1

CPU 2

3756

3604

PassMark - CPU mark

CPU 1

CPU 2

18933

24956

Name	AMD Ryzen Z1	AMD Ryzen 7 7840U
PassMark - Single thread mark	3756	3604
PassMark - CPU mark	18933	24956

Compare specifications (specs)

	AMD Ryzen Z1	AMD Ryzen 7 7840U
Essentials
Launch date	May 2023	May 2023
Place in performance rating	298	284
Performance
Base frequency	3.2 GHz	3.3 GHz
L1 cache	64K (per core)	64K (per core)
L2 cache	1MB (per core)	1MB (per core)
L3 cache	16MB (shared)	16MB (shared)
Manufacturing process technology	4 nm	4 nm
Maximum core temperature	100°C	100°C
Maximum frequency	4.9 GHz	5.1 GHz
Number of cores	6	8
Number of threads	12	16
Unlocked
Die size		178 mm²
Transistor count		25,000 million
Memory
ECC memory support
Supported memory types	DDR5-5600 MHz, Dual-channel	DDR5-5600 MHz, Dual-channel
Compatibility
Configurable TDP	9-30 Watt	15-30 Watt
Max number of CPUs in a configuration	1	1
Sockets supported	FP8	FP8
Thermal Design Power (TDP)	15 Watt	28 Watt
Peripherals
PCIe configurations	Gen 4, 20 Lanes, (CPU only)	Gen 4, 20 Lanes, (CPU only)