FEEL THE ROADSIMULATION
Force feedback. Telemetry. Triple screens. VR. Sim racing is the most demanding continuous workload in PC gaming — not because any single frame is heavy, but because 1% lows under braking decide whether you stay on the line. Every HOENGAGER sim build is matched to a specific display setup and frame-pacing target.
CONSISTENCY.
EVERY LAP.
Sim racing is not like a benchmark run. A 30-car ACC grid in the rain at night stresses the CPU far more than the GPU, and a single stutter under braking can cost you a race position. Modern sims also run continuous physics, AI traffic logic, telemetry overlays and multi-display rendering simultaneously — for hours at a time. The CPU handles physics and AI; the GPU renders multiple high-refresh viewports. Both matter, but 1% lows matter more than averages.
EIGHT SIMS.
ONE RIG.
From GT3 sprint racing to endurance multi-class fields and full physics sandboxes. Performance data below is based on our own testing with RTX 5070 Ti-class hardware and a Ryzen 7 9800X3D.
WHAT WE MEASURE
IN EACH SIM.
Each sim stresses different parts of the hardware pipeline. These notes summarize our measured results on HOENGAGER test systems and the build that hits a specific frame-pacing target.
ACC is CPU-bound in full grids, GPU-bound in rain.
ACC is one of the most demanding sim titles on the CPU side — a 50-car grid at Spa in heavy rain pushes physics and AI traffic logic far harder than the GPU renderer. In our own testing, a Ryzen 7 9850X3D delivers 146 FPS average with 117 FPS 1% Low at 4K Epic with TAA. A 7800X3D achieves 112 FPS average with 92 FPS 1% Low in the same scenario — the 1% Low gap is what matters under braking. The Ryzen 7 9800X3D sits between at 138 FPS average / 112 FPS 1% Low. ACC benefits significantly from X3D cache because the physics engine is memory-latency sensitive.
- 4K Epic + TAA: 112–146 avg FPS / 92–117 1% Low
- Triple 1440p: GPU becomes the limiter before CPU
- CPU note: X3D cache is the single biggest ACC upgrade
iRacing is the lightest renderer — the CPU still decides 1% lows.
iRacing's renderer is significantly lighter than ACC or LMU, which makes it the most accessible sim for mid-range hardware. But with a full field, the CPU still handles netcode, AI logic and physics for every car. In our own testing, a Ryzen 7 9800X3D + RTX 5070 Ti holds stable 144+ FPS at triple 1440p with high settings. The minimum spec is remarkably low — an RTX 3050 8GB or RX 6600 is enough to get started. But for triple 1440p at 144Hz with a full grid, a 5070 Ti or higher is the comfortable target.
- Triple 1440p: 144+ stable FPS with 5070 Ti
- Single 1440p ultrawide: 5070 Ti is more than sufficient
- VR: RTX 5070 Ti+ recommended for 90Hz headsets
LMU is CPU-limited even with a flagship GPU.
In our LMU benchmarking with a 62-car grid at Le Mans, the system was predominantly CPU-limited despite running an RX 9070 XT. Reflections proved to be the most CPU-expensive graphics setting, while several visually important settings were comparatively cheap. Lowering GPU-heavy image quality would have solved the wrong problem. A Ryzen 7 9800X3D keeps CPU Busy time at 6.7–7.9ms in heavy race starts, allowing 125–141 FPS average with 99–104 FPS 1% Low. The lesson: in LMU, a faster GPU will not fix stutter if the CPU is already the bottleneck.
- 62-car grid: 125–141 avg FPS / 99–104 1% Low
- CPU Busy: 6.7–7.9ms in heavy starts
- Reflections are the most expensive setting on CPU
F1 25 is the most GPU-heavy sim — ray tracing included.
Unlike the hardcore sims, F1 25 ships with ray-traced reflections, DLSS 4 support and a renderer that scales cleanly from 1080p to 4K. In our own testing, an RTX 5070 Ti delivers 100+ FPS at 4K with ray tracing enabled and DLSS Quality. The RTX 5070 manages approximately 60 FPS at 4K RT natively. F1 25 is the one sim on this list where the GPU, not the CPU, sets the upgrade budget.
- 4K RT + DLSS Quality: 100+ avg FPS
- 4K RT native: ~60 avg FPS (5070)
- DLSS 4 frame generation: 160+ perceived FPS
EVERY LAP.
EVERY FRAME.
Choose your performance level around your display setup: single ultrawide, triple 1440p, or VR. Each tier is built around 1% Low stability, not peak averages.
1440P ULTRAWIDE
Strong everyday target for single 3440×1440 or triple 1080p setups. ACC high settings, iRacing maxed, LMU medium-high — all with stable 1% lows.
TRIPLE 1440P
The esports standard. 3× 2560×1440 at 144Hz requires RTX 5080-class GPU headroom for ACC and LMU. iRacing can run comfortably on a 5070 Ti.
VR / TRIPLE 4K
For dedicated VR headsets and triple 4K rigs. RTX 5080 or higher recommended. iRacing's Vision Pro support requires RTX 4070 Ti / 5070 Ti minimum.
RYZEN 7 7800X3D + RTX 5070 Ti
The sweet spot for a single ultrawide or triple 1080p sim rig. Handles ACC high settings, iRacing maxed and LMU medium-high with stable frame pacing. 12GB+ VRAM is mandatory — 16GB gives headroom for heavy mods.
RYZEN 7 9800X3D + RTX 5080
For triple 1440p at 144Hz, VR headsets, and full grids in ACC and LMU. The 9800X3D's larger cache keeps 1% lows stable in 50+ car fields. A 2TB Gen4 NVMe is recommended for fast track loading and telemetry logging.
ANSWERS FOR
SIM RACERS.
The five questions US sim racers ask us most often before choosing a sim racing PC.
What CPU do I need for sim racing in 2026?
How much VRAM do I need for triple-screen sim racing?
Is iRacing or ACC more demanding?
Do I need 32GB RAM for sim racing?
How much should I spend on a sim racing PC in 2026?
THE LINE
IS YOURS.
From GT3 sprint races to 24-hour endurance events, from single ultrawide to triple 1440p and VR — choose a Hoengager gaming PC built for the sim rig you want to drive. Every build is matched to a specific display setup and frame-pacing target.