AMD introduces Radeon RX 6600 non-XT

The slowest desktop RDNA2 graphics card is out.

AMD Radeon RX 6600 is based on Navi 23 GPU with 1792 Stream Processors, a reduction of 256 cores from the full chip, and also the RX 6600 XT variant. This model represents the lowest tier in the whole RX 6000 lineup based on RDNA2 architecture.

Despite being the slowest, the card is still packed with 8GB GDDR6 memory, although limited to the 128-bit memory bus and 14 Gbps speed. This means that the card has a nearly identical memory configuration to RX 6600 XT but it has lower bandwidth of 224 GB/s.

To avoid self-competition among RDNA2 GPUs, the card has lower clock speeds compared to the XT model by nearly 315 MHz for the base and 98 MHz for boost. Those changes are a result of lower board power of 132W, a reduction of 28W from the higher-end SKU.

AMD decided to compare its Radeon RX 6600 card with GeForce RTX 3060, which just happens to be the slowest Ampere model out there. AMD card may not be able to win against RTX 3060 in all games, but it will offer better performance per watt, according to AMD’s own slide:

AMD Radeon RX 6600 will carry a price tag of 329 USD, but this price will likely not be mirrored by retailers.

VideoCardz	RX 6800	RX 6700 XT	RX 6600 XT	RX 6600
AMD Radeon RX 6000 Series
Picture
GPU	Navi 21 XL	Navi 22 XT	Navi 23 XT	Navi 23 XL
Cores	3840	2560	2048	1792
Infinity Cache	128 MB	96 MB	32 MB	32 MB
Game Clock	1815 MHz	2321 MHz	2359 MHz	2044 MHz
Boost Clock	2105 MHz	2581 MHz	2589 MHz	2491 MHz
Memory Clock	16 Gbps	16 Gbps	16 Gbps	14 Gbps
Memory	16 GB GDDR6	12 GB GDDR6	8 GB GDDR6	8 GB GDDR6
Memory Bus	256-bit	192-bit	128-bit	128-bit
Bandwidth	512 GB/s	384 GB/s	256 GB/s	224 GB/s
TBP	250W	230W	160W	132W
MSRP	579 USD	479 USD	379 USD	329 USD
Launch Date	November 2020	March 2021	August 2021	October 2021