Fortnite

AMD Ryzen 9 8945HX and NVIDIA GeForce RTX 4080 sit in the 70th percentile of all tested Fortnite combinations, placing 821st out of 2740 combos. This is a top-tier pairing that delivers high refresh rate gameplay at 1080p and remains very playable at 1440p, though 4K Ultra settings push the GPU to its limits. The data shows a system with substantial headroom for competitive settings, but one where graphical fidelity at maximum settings requires significant performance trade-offs.

How This Combo Ranks

The combination of the AMD Ryzen 9 8945HX and NVIDIA GeForce RTX 4080 ranks 821st out of 2740 tested combos in Fortnite. This places it in the top 30% of all possible pairings, a strong result for a mobile platform. The ranking reflects a balanced system where neither component is a glaring bottleneck, though the data suggests the GPU becomes the primary limiter at higher resolutions.

The CPU itself sits in the 95th percentile versus all processors, with an average benchmark score of 76212. Its nearest rivals in synthetic testing include the Intel Core Ultra 9 285HX, which scores 76155 (0.1% higher), and the AMD Ryzen 9 9950X3D, which scores 75779 (0.6% lower). The 8945HX essentially trades blows with these desktop-class parts, indicating its multi-threaded capability is substantial for a mobile chip. The GPU, meanwhile, sits in the 86th percentile versus all graphics cards, with an average benchmark score of 54247. Its nearest rival, the RTX 4080 SUPER, scores 54209 (0.1% lower), showing the standard 4080 is virtually identical in raw compute. The AMD Radeon RX 6750 GRE 12 GB trails by 2.6%, and the Radeon 8060S by 2.7%.

In Fortnite specifically, the combo rank of 821 out of 2740 is respectable but not elite. The game is known for being CPU-light at low settings, which allows the GPU to stretch its legs. However, at Ultra settings with ray tracing or high draw distances, the performance gap between this combo and top-tier desktop rigs widens. The rank is a composite measure, so it reflects the average performance across all tested resolutions and settings. Given that the 8945HX is a 16-core, 32-thread mobile processor and the RTX 4080 is a 16 GB flagship mobile GPU, the pairing is clearly designed for high-end gaming laptops rather than budget-conscious builds.

GPU Role

The NVIDIA GeForce RTX 4080 in this combo is a 16 GB GDDR6X card built on the Ada Lovelace architecture. It features 9728 shading units, 304 texture mapping units, and 112 ROPs, with 76 RT cores and 304 tensor cores. The memory bus is 256-bit, providing 716.8 GB/s of bandwidth. The card runs at a base clock of 2205 MHz and boosts to 2505 MHz, with memory clocked at 1400 MHz (22.4 Gbps effective). These specs are identical to the desktop RTX 4080, but the TDP is capped at 320 W, which is standard for a laptop implementation.

In Fortnite, the GPU's role becomes evident when examining the measured FPS across settings. At 1080p Low, the combo achieves 310 FPS average, which is a massive number that suggests the CPU is feeding the GPU efficiently. However, at 1080p Ultra, the average drops to 112 FPS, a 64% reduction from Low. This steep drop indicates that the GPU is being hammered by the Ultra settings, which likely include higher shadow quality, anti-aliasing, and view distances. The 16 GB VRAM is ample for Fortnite, even at 4K, so memory capacity is not a limiting factor. Instead, the raw compute power of the AD103 chip determines the frame rate.

The GPU's FP32 performance is 48.74 TFLOPS, and its pixel rate is 280.6 GPixel/s. These numbers translate into strong rasterization performance, which Fortnite heavily relies on. The RT cores are present, but Fortnite's use of ray tracing is optional and often disabled for competitive play. The data shows that the GPU's performance scales predictably with resolution: at 1440p High, it hits 108 FPS, and at 4K High, it drops to 57 FPS. This halving of frame rate from 1440p to 4K is typical for a GPU of this class, indicating that the 4080 is being pushed to its limits at 4K.

Resolution Scaling

The measured FPS data reveals a clear pattern of scaling as resolution increases. At 1080p Low, the combo produces 310 FPS average. Moving to 1440p Low, the frame rate drops to 197 FPS, a 36% reduction. At 4K Low, it further drops to 104 FPS, a 47% reduction from 1440p. This scaling is expected, as the number of pixels increases from roughly 2 million at 1080p to 3.7 million at 1440p to 8.3 million at 4K. The GPU is the primary bottleneck at these settings, as the CPU has enough headroom at Low settings to keep up.

The situation changes at High settings. At 1080p High, the combo averages 169 FPS. At 1440p High, it drops to 108 FPS, a 36% reduction. At 4K High, it falls to 57 FPS, a 47% reduction from 1440p. The percentage drops are nearly identical to Low settings, which suggests that the GPU is consistently the limiting factor across all resolutions at these settings. The CPU's 16 cores and 32 threads are not being saturated, as Fortnite is not heavily multi-threaded. Instead, the GPU's shading units and memory bandwidth determine the frame rate.

At Ultra settings, the scaling becomes steeper. 1080p Ultra yields 112 FPS, 1440p Ultra drops to 71 FPS (a 37% reduction), and 4K Ultra plummets to 38 FPS (a 46% reduction from 1440p). The 4K Ultra result is particularly telling: 38 FPS is below the 60 FPS threshold that most gamers consider playable. This indicates that the RTX 4080, while powerful, cannot handle Fortnite's maximum settings at 4K without dropping below smooth frame rates. The scaling from 1080p to 1440p is consistent at around 36-37% across all settings, but the 1440p to 4K drop is slightly steeper at 46-47%, likely due to the increased memory bandwidth demands at 4K.

Measured FPS Breakdown

The measured FPS data provides a comprehensive view of performance across three resolutions and four settings levels. At 1080p, the combo delivers exceptional performance: 310 FPS at Low, 218 FPS at Medium (with a minimum of 186 and maximum of 251), 169 FPS at High, and 112 FPS at Ultra. The Medium setting is the only one with min/max data, but the average FPS figures show a clear hierarchy. At 1080p, even Ultra settings produce frame rates that exceed 100 FPS, making this a viable combination for high-refresh-rate 1080p monitors.

Moving to 1440p, the performance drops but remains strong. Low settings yield 197 FPS, Medium 139 FPS (with a minimum of 118 and maximum of 160), High 108 FPS, and Ultra 71 FPS. The Medium setting at 1440p shows a tighter range than at 1080p, with a 42 FPS spread between minimum and maximum, compared to 65 FPS at 1080p. This suggests that the GPU is becoming more consistently stressed at higher resolutions. The Ultra setting at 1440p produces 71 FPS average, which is playable but not ideal for competitive play where high frame rates are preferred.

At 4K, the performance drops significantly. Low settings yield 104 FPS, Medium 73 FPS (with a minimum of 62 and maximum of 84), High 57 FPS, and Ultra 38 FPS. The Medium setting at 4K shows a 22 FPS spread, indicating that the GPU is struggling to maintain consistent frame times. The 38 FPS average at 4K Ultra is notable: it is the only setting across all resolutions where the average dips below 40 FPS. This is a clear indication that 4K Ultra is not a viable option for this combo, and users should stick to Medium or Low settings at 4K for smooth gameplay.

The data also shows that the difference between Low and Ultra settings is substantial. At 1080p, the gap is 198 FPS (310 vs 112), at 1440p it is 126 FPS (197 vs 71), and at 4K it is 66 FPS (104 vs 38). This widening gap at higher resolutions confirms that the GPU is the primary bottleneck, as the settings' impact becomes more pronounced when the GPU is already working harder.

CPU Role

The AMD Ryzen 9 8945HX is a 16-core, 32-thread processor based on the Zen 4 architecture, codenamed Dragon Range. It has a base clock of 2.50 GHz and a boost clock of 5.40 GHz, with a TDP of 55 W. The CPU features 64 KB of L1 cache per core, 1 MB of L2 cache per core, and 64 MB of L3 cache. It supports DDR5 memory in a dual-channel configuration, providing 83.2 GB/s of bandwidth. The processor is built on a 5 nm process from TSMC, with 13,140 million transistors across a 2x 71 mm² die size.

In Fortnite, the CPU's role is less critical than the GPU, but it still matters. The game is single-threaded in many aspects, so the 8945HX's high boost clock of 5.40 GHz is beneficial. The CPU's single-core performance in Cinebench R23 is 6030, which is strong for a mobile chip. Its multi-core score of 42713 is impressive, but Fortnite rarely uses more than a few cores. The data shows that at 1080p Low, the combo achieves 310 FPS, which is a number that would be difficult to reach if the CPU were a bottleneck. At 1080p Ultra, the frame rate drops to 112 FPS, but this is likely due to the GPU being stressed rather than the CPU.

The CPU's 95th percentile ranking versus all processors indicates that it is among the top 5% of CPUs tested. Its nearest rivals in synthetic benchmarks include the Intel Core Ultra 9 285HX (0.1% faster) and the AMD Ryzen 9 9950X3D (0.6% faster). These are desktop-class processors, so the 8945HX's performance is remarkable for a mobile part. However, in Fortnite, the CPU's advantage is not fully realized because the game is not heavily multi-threaded. The 16 cores and 32 threads are more than enough for Fortnite, and the bottleneck shifts to the GPU at higher resolutions and settings.

The CPU's memory bandwidth of 83.2 GB/s is adequate for Fortnite, which does not require high memory throughput. The L3 cache of 64 MB is also sufficient to keep frequently accessed data close to the cores. The PCIe Gen 5 interface with 28 lanes ensures that the GPU has a fast connection, though the RTX 4080 uses PCIe 4.0 x16, which is backward compatible and does not limit performance.

FAQ

Q: What is the best resolution and settings combo for high refresh rate gaming?

A: At 1080p Low, the combo achieves 310 FPS average, which is ideal for a 240 Hz or 360 Hz monitor. At 1440p High, it drops to 108 FPS, which is still smooth for a 144 Hz display. For competitive play, 1080p Low is the best choice.

Q: Can this combo handle 4K gaming in Fortnite?

A: Yes, but with compromises. At 4K Low, it averages 104 FPS, which is playable. At 4K Medium, it drops to 73 FPS, and at 4K High, it falls to 57 FPS. 4K Ultra is not recommended, as it only produces 38 FPS average.

Q: How does the CPU compare to its nearest rivals?

A: The AMD Ryzen 9 8945HX has an average benchmark score of 76212, which is 0.1% lower than the Intel Core Ultra 9 285HX (76155) and 0.6% higher than the AMD Ryzen 9 9950X3D (75779). It also trails the AMD EPYC Embedded 8224P by 0.4% (76492) and the AMD Ryzen Threadripper PRO 9945WX by 0.4% (76513).

Q: What is the GPU's performance relative to its closest competitors?

A: The NVIDIA GeForce RTX 4080 has an average benchmark score of 54247. It is 0.1% faster than the RTX 4080 SUPER (54209), but 1.1% slower than the AMD Radeon Pro W5700X (54828) and 2.6% slower than the AMD Radeon RX 6750 GRE 12 GB (55698).

Q: Is the 16 GB VRAM sufficient for Fortnite at 4K?

A: Yes, the 16 GB GDDR6X memory is more than enough for Fortnite, even at 4K Ultra. The game typically uses less than 8 GB of VRAM, so the memory capacity is not a limiting factor. The GPU's compute power is the constraint at 4K Ultra.

Q: How does the combo rank overall in Fortnite?

A: The combo ranks 821st out of 2740 tested combinations, placing it in the 70th percentile. This indicates it is a strong performer, but not the absolute top tier, which is reserved for desktop GPUs like the RTX 4090 paired with flagship CPUs.