This is our standard studio scene comparison shot taken from exactly the same tripod position. Lighting: daylight simulation, >98% CRI. Crops are 100%. Ambient temperature was approximately 22°C (~72°F).
It doesn't come as a surprise that under controlled conditions and at low ISO the differences between these cameras are only marginal. Any minor differences are likely to be caused by the lenses used (and depth of field). As we've seen in previous reviews Nikon is standardizing processing defaults across its 'serious' DSLR range. The default sharpening is a little conservative (which gives you some leeway for additional sharpening) and both cameras produce clean, detailed JPEG output with little to choose between them.