AMD Radeon RX 6600 XT "Navi 23" in picture - challenges Geforce RTX 3060

The fact that there is a crying shortage of circuits does not prevent AMD and Nvidia from continuing to launch a battle stream of new graphics cards. During Computex 2021, the AMD unveiled the Radeon RX 6000M series for laptops, introducing the Navi 23 graphics circuit. This was followed by new Radeon Pro models with Navi 23, and now it’s time for the circuit to adopt desktops.

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1 Specifications: – AMD Radeon RX 6600 XT “Navi 23”

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AMD Radeon RX 6800M and Radeon RX 6700M GPU 3.png

The name of the graphics card is not entirely unexpected Radeon RX 6600 XT and for the first time its reference design is captured on image. It follows the same color theme of black, white and silver with red accents, but the design itself differs. Instead of three or two fans, a single one is placed in the middle and the graphics card is also a small story, possibly with a length measurement of ITX size (170 mm).

The graphics expert Videocardz, who is behind the leak, also took the opportunity to manipulate the image and was thus able to get the Radeon RX 6600 XT equipped with an 8-pin connector. According to the ATX standard, this means a theoretical power supply of up to 225 W, while a 6-pin would mean up to 150 W. This can thus mean that the graphics card has a power consumption a bit above just 150 W.

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Specifications: – AMD Radeon RX 6600 XT “Navi 23”

	RX 6800 XT	RX 6800	RX 6700 XT	RX 6600 XT	RX 5700 XT
Architecture	RDNA 2	RDNA 2	RDNA 2	RDNA 2	RDNA
Technical	7 nm TSMC	7 nm TSMC	7 nm TSMC	7 nm TSMC	7 nm TSMC
Circuit	Navi 21	Navi 21	Navi 22	Navi 23	Navi 10
Circuit surface	520 mm²	520 mm²	335 mm²	237 mm²	251 mm²
Transistors	26.8 billion	26.8 billion	17.2 billion	11.1 billion	10.3 billion
Compute Units	72 st.	60 st.	40 st.	32 st.	40 st.
Raster units	128 st.	96 st.	64 st.	64 st.	64 st.
Texture units	288 st.	240 st.	160 st.	128 st.	160 st.
Ray Accelerators	72 st.	60 st.	40 st.	32 st.	–
Streamprocessorer	4 608 st.	3 840 st.	2 560 st.	2 048 st.	2 560 st.
Playing frequency	2 015 MHz	1 815 MHz	2 424 MHz	1 692 MHz(?)	1 755 MHz
Turbo frequency	2 250 MHz	2 105 MHz	2 581 MHz	2 684 MHz(?)	1 905 MHz
Calculating power (FP32)	20 736 GFLOPS	16 166 GFLOPS	13 215 GFLOPS	10 994 GFLOPS(?)	9 754 GFLOPS
Infinity cache	128 MB	128 MB	96 MB	32 MB	–
Memory bus	256-bit	256-bit	192-bit	128-bit	256-bit
Memory amount	16 GB GDDR6	16 GB GDDR6	12 GB GDDR6	8 GB GDDR6(?)	8 GB GDDR6
Memory speed	16 000 MHz	16 000 MHz	16 000 MHz	16 000 MHz(?)	14 000 MHz
Memory bandwidth	512 GB/s	512 GB/s	384 GB/s	256 GB/s(?)	448 GB/s
Power supply	8+8-pin	8+8-pin	8+6-pin	8-pin	8+6-pin
TBP	300 W	250 W	230 W	?	225 W
Price at launch	649 USD	579 USD	479 USD	?	399 USD

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The graphics circuit Navi 23 is equipped with a total of 32 computing units with 64 stream processors each, for a total of 2,048 pieces. According to previous information, these should have a turbo frequency of in this context graphics cards high 2,684 MHz, which places its theoretical performance just above AMD’s previous flagship Radeon RX 5700 XT.

On the memory front, a narrow 128-bit memory bus is noticeable, which is accompanied by GDDR6 memory and then probably with a capacity of 8 GB. Provided that the effective clock frequency remains the same as with previous graphics cards, this gives a theoretical bandwidth of 256 GB / s. The narrow memory bus is compensated by a so-called Infinity Cache of 32 MB.

Architecturally, the Navi 23 is the same as all previous Radeon RX 6000 graphics cards, which means support for all DirectX 12 Ultimate features including ray tracing. A common and not particularly appreciated move on the part of AMD is that the number of PCI Express 4.0 channels is limited to 8 instead of the usual 16. This is usually motivated by the fact that AMD wants to keep power consumption down, but it is probably primarily a matter of keeping the circuit area down and thereby increasing margins.

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With the Radeon RX 6600 XT, AMD focuses on gaming in 1,920 × 1,080 pixels and the model is expected to take up the fight against the Nvidia Geforce RTX 3060, which has a recommended price of 329 USD, corresponding to just over SEK 3,500 including VAT. What price point AMD is planning for is not yet known, but a qualified guess is 299 USD or about 3,200 kronor.

When the launch of the AMD Radeon RX 6600 XT will take place is not yet known.