AMD Ryzen 9 PRO 7940HS vs Intel Celeron N5095 vs AMD Ryzen 7 7840HS

AMD Ryzen 9 PRO 7940HS

The AMD Ryzen 9 PRO 7940HS is a fast high-end laptop processor of the Phoenix series. It offers 8 cores (octa core) based on the Zen 4 architecture that supports hyperthreading (16 threads). The cores clock from 4 (base) up to 5.2 GHz (single core boost). The processor includes 8 MB L2 cache and 16 MB L3 cache.

Compared to the consumer Ryzen 9 7940HS, the PRO models offer additional security, manageability, and reliability features designed for professional users and workstation environments.

The performance of the R9 PRO 7940HS should be slightly higher than the old top model Ryzen 9 6980HX (8 Zen 3 cores with up to 4.9 GHz) at 54W TDP and Ryzen 9 6980HS at 35W TDP. Compared to the higher end Dragon Range series, the 7940HS should be similar to the Ryzen 7 7745HX (also 8 Zen 4 cores, max 5.1 GHz, 55W tDP, 32 MB L3).

The chip integrates a modern and fasts RDNA 3 graphics card (iGPU) called Radeon 780M with 12 CUs and up to 2.8 GHz clock speed. Furthermore, the Phoenix series include a video engine with AV1 de- and encoding, a new Xilinx FPGA based XDNA AI accelerator (Ryzen AI) that should be faster than the AI engine in the Apple M2 SOC and a dual-channel DDR5-5600 / LPDDR5x-7500 memory controller (with ECC support). The connectivity features includes 2 possible USB 4 (40 Gbps) ports and 20 PCIe 4.0 lanes for a GPU and SSDs.

The Phoenix series uses a single monolithic design (unlike the chiplet design of the 7045HX series) and is manufactured in the modern 4nm process at TSMC. The TDP can be configured between 35 and 45 Watt.

Intel Celeron N5095

The Intel Celeron N5095 is a quad-core SoC of the Jasper Lake product family designed for use in affordable SFF desktops and laptops. The Celeron was announced in early 2021. It features four Tremont CPU cores running at 2 GHz (base clock speed) Boosting up to 2.9 GHz (single-core Boost) with 1.5 MB of L2 and 4 MB of L3 cache but no thread-doubling Hyper-Threading technology. This processor is manufactured on Intel's first-gen 10 nm process to be not unlike the Ice Lake-U Core-series processors. The faster Celeron N5105 is notable for being more energy efficient (10 W TDP vs N5095's 15 W) yet featuring a faster iGPU model (24 EU UHD Graphics versus 16 EU UHD Graphics, with a higher clock rate to boot).

Architecture

Tremont architecture brings many improvements over the outgoing Goldmont architecture we know from Pentium N5030 and so many other N-class CPUs. According to Intel, the new architecture brings a 30% boost in single thread performance (+10% to +80% in SPECint and SPECfp depending on the test).

While the older N-class Celerons and Pentiums had to be content with up to 8 GB of DDR4-2400 RAM, Celeron N5095 is officially compatible with up to 16 GB of dual-channel DDR4-2933 or quad-channel LPDDR4x-2933 memory. Wi-Fi 6 (Gig+) support is partially baked into the chip. The Celeron supports up to 8 PCI-Express 3.0 lanes, up to 14 USB 3.2 ports and up to two SATA III ports. Four PCI-Express 3.0 lanes allow for read/write rates of up to 3.9 GB/s, provided a suitably fast NVMe SSD is used.

Jasper Lake processor package is larger compared to what Gemini Lake models had (35 x 24 mm vs. 25 x 24 mm). Please note that the Celeron gets soldered on to the motherboard (BGA1338 socket interface) and is thus not user-replaceable.

Performance

The average N5095 in our database matches the Core i3-10110U, Core i3-1005G1, Celeron N5105 and also the Ryzen 3 3200U, as far as multi-thread benchmark scores are concerned.

Even if the cooling system is great and the Power Limits are high as the sky, some slight architectural improvements together with the updated manufacturing node and higher-than-usual wattage of the Celeron are not nearly enough to let it compete with modern Core and Ryzen-series processors. It's a good option for basic day-to-day tasks, but anything beyond that will be a struggle.

Graphics

The CPU features the DirectX 12-capable 16 EU UHD Graphics iGPU running at 450 MHz to 750 MHz. The graphics adapter is capable of driving up to 3 displays with resolutions up to 4096x2160@60; it will happily decode HEVC, AVC, VP9, MPEG-2 and other popular video codecs. The latest AV1 codec is not supported, though. (You can still play such a video but it will be software-decoded rather than hardware-decoded which puts a hard limit on the watchable resolution as the CPU cores are not very fast here.)

This is not a gaming GPU by any stretch of imagination. It is just as fast as an HD Graphics 515; it will let you play the least demanding titles (like Dota 2 Reborn) provided you are OK with 720p resolution and lowest quality preset possible.

Power consumption

Most N-class Celerons and Pentiums have a 6 W TDP (also known as the long-term Power Limit). The Celeron N5095 on the other hand has a 15 Watt TDP to mimic much faster U-class Core i3/i5/i7 processors. This basically means that passively cooled designs are out of the question with this chip.

This Intel processor is manufactured on Intel's first-gen or second-gen 10 nm process [no precise data available] for OK, as of late 2022, energy efficiency.

AMD Ryzen 7 7840HS

The Ryzen 7 7840HS is a powerful Phoenix family chip that saw the light of day in H1 2023. The processor features 8 cores (16 threads thanks to SMT support) running at 3.8 GHz. The highest Boost clock speed achievable is 5.1 GHz.

Not only does this APU has full might of the Zen 4 architecture at its disposal, it also comes with the new Ryzen AI technology that's set to make generative AI more ubiquitous than ever before. Last but not the least, the Radeon 780M serves as the integrated GPU.

Architecture & Features

Phoenix family chips are powered by the Zen 4 architecture, much like Dragon Range family chips are. The latter however lacks hardware AI workload acceleration capabilities that Phoenix has. Ryzen AI is coming after Intel's DL Boost and GNA technologies; time will tell if this move by AMD is a good idea.

Perhaps more importantly, Zen 4 introduces AVX512 support (which Zen 3 chips did not have) and, thanks to a plethora of other improvements including larger caches/registers/buffers across the board, is set to bring a double-digit IPC improvement.

Elsewhere, the 7840HS has 16 MB of L3 cache and a seriously fast RAM controller (up to LPDDR5x-7500 and up to DDR5-5600, ECC-enabled memory included). PCI-Express speeds are capped at 1.97 GB/s per lane which corresponds to the 4.0 spec.

This Ryzen 7 series chip is designed to run 64-bit Windows 11, 64-bit Windows 10 or Linux; please note that it isn't overclockable and neither is it user-replaceable. It gets soldered down for good instead (FP7, FP7r2, FP8 socket interfaces).

Performance

The average 7840HS in our database is in the same league as the Core i7-12700H, Core i7-12850HX, Core i9-12900H, Core i9-13900H and also the Ryzen 9 7940HS, as far as multi-thread benchmark scores are concerned. This is a very fast chip, as of Q3 2023.

Your mileage may vary depending on how high the CPU power limits are and how competent the cooling solution of your system is.

Graphics

The Radeon 780M (12 CUs / 768 shaders, up to 2,700 MHz) is capable of powering 4 monitors simultaneously with resolutions as high as SUHD 4320p. It will also have little issue hardware-encoding and hardware-decoding the most widely used video codecs (AV1, HEVC, AVC). As far as gaming is concerned, the thing will let you play most games at 1080p as long as you are fine with moderate quality settings. Long story short, this is the best iGPU money can buy, as of H2 2023.

Your mileage may vary depending on how high the CPU power limits are, how competent the cooling solution of your system is, how fast the RAM of your system is (there is no dedicated VRAM here).

Power consumption

This Ryzen 7 series chip has a long-term power limit (default TDP) of 35 W to 54 W, giving system makers a choice between improving battery life and making the system they're designing insanely fast. Either way, an active cooling solution is a must for a laptop or a mini-PC built around this APU.

The 7840HS is built with TSMC's 4 nm process for high, as of late 2023, energy efficiency.