Doom

The Intel Core i9-14900K paired with the AMD Radeon RX 570 presents a striking contrast in Doom: a flagship 2023 processor driving an end-of-life 2017 graphics card. The benchmark results clearly show a system where the GPU is the primary constraint, yet the CPU’s immense headroom prevents any bottlenecking even at lower resolutions. This analysis breaks down how each component influences performance and where this combination stands among all tested pairings.

Resolution Scaling

The frame rate data for this combo reveals a textbook case of GPU-bound scaling as resolution increases. At 1080p with High settings, the system produces an average of 71.2 FPS. Dropping the resolution to 1440p High reduces that figure to 42.7 FPS, a substantial 40% decrease. Moving further to 4K High yields just 25.3 FPS, which is 64% lower than the 1080p result. This steep decline indicates that the AMD Radeon RX 570 is being saturated well before the resolution reaches 4K.

Examining the settings scaling at each resolution reinforces this conclusion. At 1080p, the difference between Low and Ultra settings is significant, with the average FPS falling from 92.3 to 58.0. This 34.3 FPS gap demonstrates that the GPU’s fill rate and shading capabilities are the limiting factor, not the CPU. The pattern holds at 1440p, where Low yields 60.5 FPS and Ultra drops to 37.8 FPS. At 4K, the same settings shift produces a narrower range, from 30.0 FPS at Low down to 20.7 FPS at Ultra, suggesting the GPU is nearing its absolute performance ceiling.

The data points to a clear bottleneck: the Radeon RX 570’s 4 GB of GDDR5 memory and 224.0 GB/s bandwidth are insufficient for modern high-resolution textures. While the Core i9-14900K can easily feed frames, the GPU cannot render them fast enough. The fact that even at 1080p Low the system fails to hit 100 FPS underscores that this is purely a graphics-card limitation. The resolution scaling curve is steep and consistent, leaving no doubt that upgrading the GPU would yield far greater frame rate gains than any CPU change.

CPU Role

The Intel Core i9-14900K is an absolute powerhouse, featuring 24 cores and 32 threads with a boost clock of 6.00 GHz. Its benchmark scores are exceptional, with a Cinebench R23 multicore result of 49872 and a single-core score of 7040. In Doom, a game released in 2016 that is not heavily threaded, this CPU’s role is to ensure that frame times remain consistent and that the GPU is never starved of data. The data shows it performs this role flawlessly.

With such a high single-threaded performance, the i9-14900K is unlikely to be the limiting component in any scenario presented here. Even at 1080p Low, where the GPU is at its least stressed, the CPU still manages to deliver 92.3 FPS. This is a clear indicator that the processor has ample headroom. The CPU’s 36 MB of shared L3 cache and support for DDR5 memory also contribute to low latency, but in this specific test, the bottleneck is unequivocally downstream.

The combination’s rank of 1584 out of 1681 combos suggests that while the CPU is top-tier, it cannot compensate for the GPU’s age. The i9-14900K’s nearest rivals in general benchmarks include the AMD EPYC 7413 and the Intel Core i9-14900KF, with score differences of -0.3% and 0.7% respectively. These rival CPUs would perform virtually identically in Doom, as the game’s frame rate is dictated by the graphics card. The CPU’s 97th percentile ranking among all processors is irrelevant in this pairing, as the RX 570’s 74th percentile ranking among GPUs is the performance limiter.

GPU Role

The AMD Radeon RX 570 is a Polaris 20 chip from 2017, built on a 14 nm process. It features 2048 shading units and a boost clock of 1244 MHz. While these specs were respectable at launch, they are severely outdated for a 2016 title at modern settings. The GPU’s performance is directly reflected in the measured FPS, which never reaches 100 at any resolution or setting combination. The card’s 4 GB VRAM is a significant limitation, likely causing texture thrashing in Doom’s more demanding scenes.

The GPU’s raw compute power is also modest, with an FP32 throughput of 5.095 TFLOPS. This translates to a pixel rate of 39.81 GPixel/s and a texture rate of 159.2 GTexel/s. These figures explain why performance drops so sharply at higher resolutions. At 4K, the GPU is rendering four times the pixels of 1080p, and its 32 ROPs are simply overwhelmed, resulting in averages of 25.3 FPS at High and 20.7 FPS at Ultra.

The RX 570’s nearest rivals, according to average benchmark scores, include the NVIDIA GeForce RTX 5060 and the AMD Radeon RX 7700 XT, with delta percentages of 0.2% and 0.2% respectively. However, these are modern cards with vastly superior features like ray tracing and much higher memory bandwidth. The RX 570’s 224.0 GB/s bandwidth is a fraction of what these newer cards offer. In Doom, this bandwidth limitation is the primary reason for the performance cliff between 1080p and 1440p, where the average FPS at High settings drops from 71.2 to 42.7.

How This Combo Ranks

The benchmark data places this Intel Core i9-14900K and AMD Radeon RX 570 combination at rank 1584 out of 1681 tested combos in Doom. This places it in the bottom 6% of all pairings, which is a remarkably low position for a system containing one of the fastest consumer CPUs available. This ranking highlights the extreme imbalance of the configuration. The CPU is in the 97th percentile of all processors, while the GPU sits in the 74th percentile, but the overall system performance is dragged down entirely by the graphics card.

Comparing this to other potential pairings, the data indicates that the GPU is the sole determinant of the rank. The i9-14900K’s nearest CPU rivals in average score, such as the Intel Core i9-14900KF and the Intel Core Ultra 7 265K, would produce nearly identical frame rates in Doom when paired with the same GPU. The 0.7% and 0.9% score differences between these CPUs are negligible in a game where the GPU is the bottleneck. Similarly, the RX 570’s nearest GPU rivals would not perform meaningfully better, as they are all clustered within a 0.8% score range.

The rank of 1584 out of 1681 signifies that this combo is not suitable for playing Doom at high settings and high resolutions. The data shows that to achieve a smooth experience, users would need to lower the resolution to 1080p and reduce settings to Medium or Low. Even then, the system cannot maintain a locked 60 FPS at Ultra settings, as the average is 58.0 FPS. The conclusion is clear: this is a severely GPU-limited configuration, and the powerful CPU is essentially wasted in this game.

FAQ

Q: What is the best resolution and settings to play Doom with this combo?

A: Based on the data, 1080p with Medium settings yields an average of 82.2 FPS, offering a good balance. For a higher frame rate, 1080p Low provides 92.3 FPS. At 1440p, the average FPS at High settings drops to 42.7, which may be less desirable.

Q: Is the Intel Core i9-14900K bottlenecking the AMD Radeon RX 570 in Doom?

A: No. The data shows the CPU has massive performance headroom. At 1080p Low, the system reaches 92.3 FPS, and the frame rate drops consistently with increasing resolution and settings, indicating the GPU is the sole limiting factor.

Q: How does this combo compare to other tested systems in Doom?

A: It ranks 1584th out of 1681 combos, placing it in the bottom 6%. This low rank is directly attributable to the GPU’s performance, not the CPU, which ranks in the 97th percentile of all processors.

Q: Why does performance drop so much from 1080p to 4K?

A: The AMD Radeon RX 570 has only 4 GB of GDDR5 memory and a 256-bit bus, providing 224.0 GB/s of bandwidth. At 4K, the GPU’s 32 ROPs are overwhelmed, causing the average FPS at High settings to fall from 71.2 at 1080p to 25.3 at 4K.

Q: What are the CPU’s specifications that contribute to its performance?

A: The Intel Core i9-14900K has 24 cores and 32 threads, with a boost clock of 6.00 GHz and a base of 3.20 GHz. It also features 36 MB of shared L3 cache and a Cinebench R23 multicore score of 49872.

Q: What is the GPU’s memory configuration and compute capability?

A: The AMD Radeon RX 570 has 4 GB of GDDR5 memory on a 256-bit bus, with a bandwidth of 224.0 GB/s. Its FP32 compute performance is 5.095 TFLOPS, and it has 2048 shading units.