Fortnite

Fortnite with the Intel Core i7-13700K and the NVIDIA GeForce RTX 4080 delivers a measured set of FPS results across three resolutions and four settings. This analysis draws exclusively from the provided FPS table, per-resolution and per-setting averages, and the aggregate CPU/GPU benchmark scores to explain how well this combination performs in a battle royale title.

Resolution Scaling

At 1920x1080, the combo reaches 204 FPS on High settings, 141 FPS on Ultra, 260 FPS on Medium, and 335 FPS on Low. Moving to 2560x1440 reduces these figures to 137 FPS on High, 95 FPS on Ultra, 174 FPS on Medium, and 225 FPS on Low. At 3840x2160, the numbers drop further: 78 FPS on High, 54 FPS on Ultra, 99 FPS on Medium, and 128 FPS on High. (Wait, at 4K we have Low 128, Medium 99, High 78, Ultra 54 – yes.)

The trend holds for every setting: each step from 1080p to 1440p to 4K shaves off a large portion of the frame rate, but the drop is steeper at Ultra. Taking the High setting as a reference, frames fall from 204 at 1080p to 137 at 1440p to 78 at 4K. That 78 FPS at 4K High is still playable, but Ultra drops to 54 FPS, which indicates the render resolution and post-processing tax the GPU heavily. Low settings at 1080p produce 335 FPS, and even at 4K Low the system yields 128 FPS — a sign that the CPU still far exceeds the display refresh rates most users target.

The nature of the scaling shows that the GPU is the primary limiter when moving to higher resolutions. At 1080p Low, the 335 FPS average suggests the i7-13700K can feed the RTX 4080 easily, and the frame cap likely comes from your monitor, not the hardware. As resolution climbs, the pixel shading workload grows, and the FPS minima at each setting line up with the GPU’s published VRAM bandwidth and compute capabilities.

How This Combo Ranks

Among all tested combinations of CPU and GPU, this i7-13700K + RTX 4080 build tables rank 661 out of 3700 unique combinations. That places it in the top 18 percent of all pairings measured — a strong result, though not near the very peak. The rank is derived from a pool of 3700 combos, so a 661st position puts it above over 3000 other configurations. In practice, this means you will rarely see better overall performance in real, store-bought systems, but specialist overclocking or higher-end GPU combos will still outpace it.

Because it is measured data, not synthetic prediction, the rank accounts for the exact interplay of this CPU and card in Fortnite. The ranking confirms that the pair is balanced, though the GPU does most of the heavy lifting in this title: as detailed later, the CPU delivers headroom while the GPU determines frame rates at higher settings.

GPU Role

The NVIDIA GeForce RTX 4080 brings 16 GB of GDDR6X VRAM over a 256-bit bus, with a bandwidth of 716.8 GB/s. That memory capacity is not a stressor even at 4K Ultra, where the card gives 54 FPS — it is the raw fill rate, not the VMR, that limits. The base clock is 2205 MHz and boost 2505 MHz, while the memory runs at an effective 1400 MHz with 22.4 Gbps effective transfer, according to the data. That boost clock is what drives the peak compute in every resolution and setting.

In standard benchmarks, the GPU scores 34457 in Passmark G3D, 20671 in compute, and 208 in DirectX 12 tests. Its overall average benchmark score is 342 47, and it sits in the 86th percentile vs all GPUs. Notably, its nearest rivals are extremely close. The RTX 4080 SUPER scores a 0.1% delta (faster than 4480), while the AMD Radeon Pro W5700X scores about 1.1% faster, and the RX 6750 GRE 12 GB shows a 2.6% differential. Those small deltas confirm that the RTX 4080 performs right at the top of its class, with only marginal differences from its immediate competition.

The 16 GB VRAM never becomes a ceiling in Fortnite, even at 4K Ultra. The measured FPS at 4K Ultra (54) demonstrates that the GPU is the bottleneck, not the memory; if it were the RAM, a lower resolution would drop enough to raise that frame count. The RX 4080's heavy emphasis on rasterization keeps Fortnite's scenes well within its architecture.

FAQ

Q: What is the measured average FPS at 1080p Medium?

A: The data shows 260 FPS average at 1920x1080 Medium, with a minimum of 221 and maximum of 299.

Q: Does the RTX 4080’s 16 GB VRAM handle 4K Ultra?

A: Yes, the card produced 54 FPS at 3840x2160 Ultra. This is playable but not high; the GPU’s compute limit, not VRAM, defines that result.

Q: How does the i7-13700K compare to its immediate CPU rivals?

A: Its average benchmark score is 46881, which is 0.2% slower than the Ryzen 9 5900, 0.3% slower than the Ryzen AI 9 HX PRO 375, 0.5% faster than the Ryzen 9 7845HX, and 0.5% faster than the Xeon w3-2535.

Q: What is the CPU's single-core strength?

A: In Cinebench R23 single-core, the i7-13700K scores 2116 points. This clock boost (up to 5.40 GHz) helps maintain high FPS over 300 in low settings.

Q: Is the GPU more important than the CPU for Fortnite at 1080p Low?

A: At 1080p Low the CPU yields 335 FPS; the GPU saturates at 335 FPS while the CPU still has headroom, but the frame rate is high enough that CPU does not become the limitation.

Q: What does the 661 rank out of 3700 mean?

A: It is better than 3039 other tested combinations, placing it in the early 18% of all measured configs.

Measured FPS Breakdown

All FPS readings are averages. The data includes a minimum and maximum for Medium settings at each resolution.

• 1920x1080
• Low: 335 avg
• Medium: 260 avg (min 221, max 299)
• High: 204 avg
• Ultra: 141 avg

• 2560x1440
• Low: 225 avg
• Medium: 174 avg (min 148, max 200)
• High: 137 avg
• Ultra: 95 avg

• 3840x2160
• Low: 128 avg
• Medium: 99 avg (min 84, max 114)
• High: 78 avg
• Ultra: 54 avg

The table shows a clear pattern: each increase in resolution reduces FPS at any given setting by a substantial margin. The gaps between Low and Ultra also widen as resolution climbs. At 1080p, Ultra is 141 versus 335 for Low, a 194 FPS gap. At 4K, the range is 54 to 128, a 74 FPS gap. So even the best settings preserve some headroom at lower res, but at 4K the GPU becomes the single constraining factor.

CPU Role

The Core i7-13700K is a 16-core, 24-thread desktop processor from Intel’s 13th Gen Raptor Lake family. Its base clock is 3.40 GHz and turbo to 5.40 GHz, while the 30 MB L3 cache helps combat front-end bottlenecks. In synthetic tests, the chip scores 12412 in 3DMark max-threads, 469-whatever, but more realistically it delivers a Cinebench R23 multicore score of 30745 and a single-core of 2116. The Geekbench marks are 19429 (multicore) and 2529 (single-core). These numbers solidify its position as a high-end gaming CPU that does not throttle frame generation in most titles.

In Fortnite specifically, the CPU appears to keep up with the RTX 4080 at 1080p Low, where the GPU is taxed; the measured 335 FPS implies that the CPU is not running out of cores or threads. At 4K Ultra, the CPU is far from limiting; the 54 FPS is completely GPU-bound. The CPU’s 2- thread 2242 Geekbench score and 4-thread 4469 in 3DMark content. For a fast-paced battle royale, the single-core boost of 5.40 GHz is the reason that low settings at 1080p can exceed 300 FPS.

The i7-13700K sits in the 89th percentile of all CPUs by its average benchmark score of 46881, which groups it within 0.2% of the Ryzen 9 5900 and 0.5% of the Xeon w3-2535. Since this lot of routes, its paid with a strong GPU and has plenty of processing reservoir for even modestly tilting games.

With regard to the combined system, the measured single-thread and multi-thread strengths guarantee that Fortnite’s network and physics code (which typically use one to four threads) do not degrade. The 24 threads of a Raptor Lake chip present a much larger pool than the game can exploit, but the 3.40 GHz base and 5.40 GHz boost ensure that the P-core runs the warming logic efficiently. The CPU’s instantaneous peak speed is what sets the ceiling for frame pacing in burst scenarios; the data shows that this ceiling is high – it never prevents the GPU from delivering 54 at 4K Ultra or 335 at 1080p Low.

All measured FPS numbers are raw averages, so the CPU's role is consistent with a system that is not starved for processing power. The combo remains in the top 18% of tested machines while it demonstrates that the money you spend on a high-core-count i7-13700K is not wasted, even at a title that leans more on the GPU than most.