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).
Canon EOS 7D vs. Pentax K7
Canon EOS 7D: Canon EF 50 mm F1.4 lens, Aperture Priority, ISO 100
JPEG Large/Fine, Manual WB, Default Parameters (Standard), Self-Timer (with MLU), ALO disabled
Both cameras deliver good sharpness on a pixel level. However, the 7D's higher sensor resolution squeezes a small amount of extra detail out of the scene. Again, at base ISO any differences in detail would only be visible at very large output sizes.