CaseCalc › CaseDatabase › Ridge PCIe 4.0 Black vs Ridge PCIe 4.0 White

Fractal Design Ridge PCIe 4.0 Black vs Fractal Design Ridge PCIe 4.0 Whitecomputed

Datasheet figures next to each other, and the airflow balance, pressure verdict and case air heating that the fans in each box compute to behind that case's own front. Calculated with the CaseFlow model, not measured.

Side by side

Fractal Design Ridge PCIe 4.0 BlackFractal Design Ridge PCIe 4.0 White
FormITX mini towerm-ITX small form factor
Volume16.3 L16.3 L
Dimensions374 × 110 × 395 mm374 × 110 × 395 mm
Frontmesh dust filtermesh dust filter
Fan mountsfront 2 × 120/140, top 3 × 80, rear 1 × 120, side 2 × 120/140front 2 × 140, top 3 × 80, rear 1 × 120, side 2 × 140/120
Radiator supportfront 360 mm, top 240 mm, rear 120 mm, side 120 mmside 120 mm
Dust filtersfrontfront, top
GPU length335 mm335 mm
Cooler height70 mm70 mm
Stock fans2 × Aspect PWM (side)2 × Aspect 14 PWM (side)
Stock airflow, max rpm–122 in / 0 out CFM
Stock pressure verdictstock fans named but no datasheet - nothing computedpositive, worst case included
Case air at 290 W–+4.4 K
Stock fan noise–38.5 dB(A)
All mounts, reference fans234 in / 211 out CFM 4 / 4 mounts234 in / 211 out CFM 4 / 4 mounts

The stock fans of the Ridge PCIe 4.0 Black are named without figures behind them, so its stock columns stay empty. The pressure verdict describes the stock fan set, not the case: stronger or extra intake fans in the free mounts, or slower exhaust fans, turn a negative balance positive.

Ridge PCIe 4.0 Black — mounts and stock fans

side mountsTOPBOTTOMREARFRONT · mesh

Ridge PCIe 4.0 White — mounts and stock fans

side mountsTOPBOTTOMREARFRONT · mesh

Case air heating with the stock fans — computed

0 5 0 100 200 300 400 450 W GPU (open cooler) + 40 W board Ridge PCIe 4.0 White K case air above room

Use it

Both in CaseComparison Ridge PCIe 4.0 Black in CaseFlow Ridge PCIe 4.0 White in CaseFlow
How these numbers are computed

Each stock fan contributes CFMmax · derate · rpm/rpmmax behind its wall's mounting class: filtered mesh front and side mounts as dust filter, bottom as floor + filter, top and rear as open grille, solid and glass fronts as side-slit intake at roughly half of a mesh front. Front, bottom and side blow in; top and rear blow out.

MountingAirflow bladesPressure-optimized
Open grille0.88 (0.80–0.95)0.88 (0.80–0.95)
Dust filter0.70 (0.60–0.80)0.78 (0.70–0.86)
Floor + filter0.64 (0.52–0.74)0.72 (0.62–0.80)
Solid or glass front0.50 (0.40–0.62)0.58 (0.48–0.68)

Worst case sums intake at the low end of each band and exhaust at the high end; positive there means positive regardless of how the estimates fall. Case air: ΔT = 3.1 · W / throughput (m³/h), with an open-cooler GPU putting its full board power into the case air plus board, RAM and drives. Capacity puts a reference pressure-optimized fan on every mount at max rpm — 120 mm 60 CFM, 140 mm 75 CFM — a generic good fan, not a product.

Mount counts, radiator support and clearances are datasheet figures. Nothing here is measured; the same model runs in CaseFlow.