Doom

The AMD Ryzen 7 5700X3D paired with the Intel Arc B370 is a study in contrasts, combining a high-end gaming CPU from 2024 with a low-power integrated graphics solution from 2026. The benchmark data for Doom (2016) reveals a system that is heavily constrained by its graphics component, yet the CPU's strength ensures that the frame rates, while low in absolute terms, remain remarkably consistent and playable at lower settings.

How This Combo Ranks

The combination of the AMD Ryzen 7 5700X3D and the Intel Arc B370 lands at rank 3425 out of 3712 tested combos in this game. This places it in the bottom 8% of all tested configurations, a position that reflects the GPU's severe performance ceiling rather than the CPU's capabilities. The GPU itself sits at the 5th percentile of all GPUs in the database, with an average benchmark score of 1184, which is the primary bottleneck.

The CPU, by contrast, is a powerhouse. The Ryzen 7 5700X3D occupies the 77th percentile among all CPUs, with an average benchmark score of 24709. Its nearest rivals in the database include the AMD Ryzen 5 7600X3D (averaging 24728, a 0.1% difference), the AMD Ryzen 9 5900HX (averaging 24822, a 0.5% difference), and the Intel Core i5-12450HX (averaging 24576, a 0.5% difference). The performance deltas between these processors are minuscule, indicating that the 5700X3D is firmly in a competitive tier of mid-to-high-end CPUs. In multi-threaded workloads like Cinebench R23, it scores 22366, and in Geekbench multicore, it reaches 11086. This is a CPU that can feed any modern discrete GPU without breaking a sweat.

The problem is that the Intel Arc B370 is not a discrete GPU; it is an integrated graphics processor (IGP). Its benchmark results are telling. In the 3DMark Steel Nomad DX12 test, it scores 1184. Its nearest rivals are the ATI Mobility Radeon HD 5570 (scoring 1186, a 0.2% difference), the ATI Radeon HD 5770 (scoring 1190, a 0.5% difference), and the AMD Radeon HD 7650M (scoring 1192, a 0.7% difference). These are all graphics solutions from a bygone era, over a decade old. The Arc B370 is effectively competing with integrated graphics and entry-level discrete GPUs from 2010-2012. The massive gap between the CPU's 77th percentile standing and the GPU's 5th percentile standing is the defining feature of this combo. It is a top-tier engine strapped to a bicycle wheel.

Settings Recommendations

Given the GPU's limitations, the choice of in-game settings is the single most important factor in achieving a playable experience in Doom. The data shows a clear hierarchy of performance across the four presets tested. At 1080p, the difference between Low and Ultra is substantial, and the recommendation is straightforward: prioritize frame rate over visual fidelity.

The measured FPS data at 1920x1080 is as follows: Low averages 96 FPS, Medium averages 84 FPS, High averages 71 FPS, and Ultra averages 58 FPS. The jump from Low to Medium is a 12 FPS drop (about 14%), and from Medium to High, another 13 FPS drop. The most punishing transition is from High to Ultra, which costs another 13 FPS. For a fast-paced FPS like Doom, maintaining a high frame rate is critical for smoothness and responsiveness. The optimal setting for this combo is Low, which delivers an average of 96 FPS, providing the headroom needed for the game's intense action sequences.

However, if visual quality is a priority, Medium is the highest acceptable setting, averaging 84 FPS. This is still smooth enough for competitive play, and the visual upgrade from Low is noticeable. The High and Ultra presets, while more visually impressive, push the average frame rate below the 75 FPS threshold that many players consider the minimum for a comfortable experience. At 1440p, the situation becomes more dire. Low averages 62 FPS, Medium 54 FPS, High 46 FPS, and Ultra 37 FPS. The Low preset is the only one that provides a consistently playable experience at this resolution. At 4K, the GPU is overwhelmed, with even the Low preset only averaging 34 FPS, which is borderline unplayable.

Resolution Scaling

The resolution scaling behavior of this combo reveals the GPU's severe bandwidth and compute limitations. The data shows a predictable and steep decline in performance as resolution increases. At Low settings, the average frame rate falls from 96 FPS at 1080p to 62 FPS at 1440p, a drop of 35%. Moving from 1440p to 4K, the frame rate falls further to 34 FPS, another 45% drop. This pattern is consistent across all settings.

At Medium settings, the frame rate drops from 84 FPS at 1080p to 54 FPS at 1440p (a 36% drop), and then to 29 FPS at 4K (a 46% drop). The High preset follows suit: 71 FPS at 1080p, 46 FPS at 1440p (a 35% drop), and 25 FPS at 4K (a 46% drop). The Ultra preset drops from 58 FPS at 1080p to 37 FPS at 1440p (a 36% drop) and finally to 20 FPS at 4K (a 46% drop).

The near-constant percentage drop between 1080p and 1440p (35-36%) and between 1440p and 4K (45-46%) indicates that the GPU is the limiting factor. A CPU-bound system would show a smaller performance delta at higher resolutions, as the CPU's workload remains constant while the GPU's increases. Here, the frame rate scales almost perfectly with the pixel count, confirming that the Intel Arc B370 is saturated. The Ryzen 7 5700X3D is not the bottleneck; it is waiting for the GPU to finish rendering frames. The consistent ~35% drop from 1080p to 1440p and the ~46% drop from 1440p to 4K demonstrate a classic GPU-bound scenario. The system is rendering more pixels per frame, and the GPU simply does not have the fill rate or shading power to keep up.

Measured FPS Breakdown

The complete measured FPS data provides a full picture of this combo's capabilities. The system was tested at three resolutions and four settings levels, with average FPS recorded for all, and min/max FPS recorded for the Medium preset at each resolution.

At 1920x1080 (1080p):

• Low: Average 96 FPS.
• Medium: Average 84 FPS, with a minimum of 71 FPS and a maximum of 96 FPS.
• High: Average 71 FPS.
• Ultra: Average 58 FPS.

At 2560x1440 (1440p):

• Low: Average 62 FPS.
• Medium: Average 54 FPS, with a minimum of 46 FPS and a maximum of 62 FPS.
• High: Average 46 FPS.
• Ultra: Average 37 FPS.

At 3840x2160 (4K):

• Low: Average 34 FPS.
• Medium: Average 29 FPS, with a minimum of 25 FPS and a maximum of 34 FPS.
• High: Average 25 FPS.
• Ultra: Average 20 FPS.

The min/max data for the Medium preset is revealing. At 1080p, the frame rate varies between 71 and 96 FPS, a range of 25 FPS. At 1440p, the range narrows to 16 FPS (46-62). At 4K, the range narrows further to 9 FPS (25-34). This tightening of the frame time variance at higher resolutions is a classic sign of a GPU that is completely maxed out. There is no headroom for the GPU to burst faster; it is running at its absolute limit, and the frame rate is dictated purely by the rendering load. The lower the resolution, the more the frame rate can fluctuate, suggesting that at 1080p, the GPU is occasionally able to catch up to the CPU's output, but at 4K, it is permanently saturated.

GPU Role

The Intel Arc B370 is an integrated GPU based on the Xe3-LPG architecture, built on Intel's 3 nm process. It features 1280 shading units, 40 texture mapping units, 20 ROPs, and 10 ray tracing cores. Its clock speeds are listed as a base of 300 MHz and a boost of 2400 MHz. The memory configuration is "System Shared," meaning it uses a portion of the main system memory (DDR4 in this case, given the CPU) rather than dedicated VRAM. The memory bus width and bandwidth are also "System Shared" and "System Dependent," respectively. This is the fundamental weakness: the GPU is competing with the CPU for memory bandwidth, and the system's dual-channel DDR4 memory at 51.2 GB/s is far below what a modern discrete GPU would require.

The GPU's compute capabilities are modest. It delivers 6.144 TFLOPS of FP32 performance and 12.29 TFLOPS of FP16 performance (2:1 ratio). The pixel rate is 48.00 GPixel/s, and the texture rate is 96.00 GTexel/s. These numbers place it in the field of entry-level integrated graphics. The 3DMark Steel Nomad DX12 score of 1184 confirms this, placing it just below the ATI Radeon HD 5770, a GPU from 2009. The GPU's TDP is a mere 25 W, which is typical for an integrated solution, and it has no power connectors, being an IGP (Integrated Graphics Processor). Its DirectX support is 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, meaning it supports modern APIs, but its raw horsepower is insufficient to leverage them effectively in demanding titles.

For Doom, the GPU's role is entirely limiting. The game's id Tech 6 engine is well-optimized, but it still requires a certain level of pixel throughput. The Arc B370's low ROP count and shared memory bandwidth are the primary reasons for the low frame rates. The system's performance is a direct reflection of the GPU's ability to process the game's geometry and textures. The CPU is not a factor; the Ryzen 7 5700X3D's 8 cores and 16 threads are more than enough for Doom, which is not a heavily multi-threaded title. The 96 MB of shared L3 cache on the CPU helps with frame pacing, but it cannot compensate for the GPU's lack of raw power.

FAQ

*Q: Is this combo capable of running Doom at 1080p?*

A: Yes, at 1920x1080 with the Low preset, the combo averages 96 FPS. The Medium preset is also playable at 84 FPS. Higher presets like High (71 FPS) and Ultra (58 FPS) are playable but will have lower frame rates.

Q: What is the best resolution for this CPU-GPU pairing?

A: The best experience is at 1920x1080. At 2560x1440, the Low preset averages 62 FPS, which is acceptable, but the Medium preset drops to 54 FPS. 4K is not recommended for smooth gameplay, as even the Low preset only achieves 34 FPS.

Q: How does the Intel Arc B370 compare to its closest rivals?

A: The Arc B370 has an average benchmark score of 1184. Its nearest rival, the ATI Mobility Radeon HD 5570, scores 1186 (0.2% higher), and the ATI Radeon HD 5770 scores 1190 (0.5% higher). The AMD Radeon HD 7650M scores 1192 (0.7% higher), and the AMD FirePro M2000 scores 1168 (1.4% lower).

Q: Is the CPU or the GPU the performance bottleneck in this system?

A: The GPU is the clear bottleneck. The Ryzen 7 5700X3D is in the 77th percentile of all CPUs, while the Arc B370 is in the 5th percentile of all GPUs. The frame rate drops by a consistent percentage when moving from 1080p to 4K, indicating the GPU is saturated.

Q: What are the frame time variations like for this combo?

A: At 1080p Medium, the FPS ranges from 71 to 96. At 1440p Medium, it ranges from 46 to 62. At 4K Medium, it ranges from 25 to 34. The frame rate variance decreases as resolution increases, indicating the GPU is running at its limit.

Q: How much system memory bandwidth is available for the GPU?

A: The GPU uses System Shared memory. The CPU supports dual-channel DDR4 memory with a bandwidth of 51.2 GB/s. This shared bandwidth is a limiting factor for the integrated GPU.