AMD Radeon RX 6600 14 Gbps memory confirmed through leaked GPU-Z screenshot

Published: 10th Oct 2021, 10:00 GMT   Comments

AMD Radeon RX 6600 with 14 Gbps memory

A TechPowerUP GPU-Z screenshot confirms RX 6600 non-XT is the first card from the RDNA2 series to ship with reduced memory speed.

Earlier this week we revealed the full specs of the Radeon RX 6600 non-XT model, the upcoming mid-tier graphics card based on Navi 2X architecture. This card will be the slowest desktop RDNA2 card that AMD has launched yet, featuring ‘only’ 1792 Stream Processors, a reduction of 256 cores from the full Navi 23 GPU.

AMD Radeon RX 6600 will have lower frequencies compared to the XT variant. The card will ship with a game clock of 2044 MHz and a boost clock of 2491 MHz, a reduction of 319 and 98 MHz respectively from XT SKU. The graphics core frequency is not the only being limited on the non-XT variant. The card will also have limited memory bandwidth from 256 GB/s to 224 GB/s, which is a result of reduced memory speed from effective 16 Gbps to 14 Gbps.

The screenshot shared below features Sapphire RX 6600 Pulse, clocked at reference frequencies. The card had Adrenaln 21.30.17.06 driver installed in Windows 10. The specs list 1750 MHz memory frequency which multiplied by 8 gives 14 Gbps:

AMD Radeon RX 6600 GPU-Z Specifications,Source: VideoCardz

In official benchmarks, the card trades places with GeForce RTX 3060 depending on a title. AMD had to artificially limit the card’s perforamnce by introducing lower clocks, limited bandwidth, and probably more importantly, reduced power consumption of 132W. All those factors will prevent the card from reaching RX 6600 XT performance and self-competition in the RDNA2 stack.

AMD claims that their RX 6600 non-XT on average offers 1.3x more performance per watt than GeForce RTX 3060, which appears the main selling of this new SKU. The card officially launches on October 13th, which is also the date of the review embargo.

AMD Radeon RX 6000 Series
VideoCardzRX 6800RX 6700 XTRX 6600 XTRX 6600
Picture
GPUNavi 21 XLNavi 22 XTNavi 23 XTNavi 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
TBC
Launch DateNovember 2020March 2021August 2021October 2021



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