AMD Confirms: Navi 23 GPU Has 64 ROPs and 32 Ray Tracing Cores - Wccftech

AMD Navi 23 GPU

TechPowerUp Editor-In-Chief "W1zzard" received confirmation yesterday from AMD that the Navi 23 GPU will indeed have 64 ROPs; the same as it's previous Navi 22 GPU, VideoCardz reports.

AMD Navi 23 GPU. Source: TechPowerUp

Aside from AMD announcing that the Navi 23 GPU is currently in use as the Radeon RX 6600M and three other unreleased projects, Elon Musk has also stated that the new GPU is in Tesla's Model S information and entertainment system - something that is quoted to rival the Sony Playstation 5 console's processing power.

This new information now adds more speculation to other details of not only the Navi 23 units, but Radeon's RX 6600M, Radeon Pro W6600(M), and the Radeon RX 6600 XT GPUs.

TechPowerUp breaks down the specs for the AMD Navi 23 GPU:

AMD's Navi 23 GPU uses the RDNA 2.0 architecture and is made using a 7 nm production process at TSMC. With a die size of 237 mm² and a transistor count of 11,060 million it is a medium-sized chip. Navi 23 supports DirectX 12.0 (Feature Level 12_1). For GPU compute applications, OpenCL version 2.1 can be used. It features 2048 shading units, 128 texture mapping units and 64 ROPs. The GPU also contains 32 raytracing acceleration cores.

The Navi 23 GPU utilizes up to 32 CU (compute units). That is intriguing, considering that none of the products to be launched have been confirmed to only use 28 CU.

Last September, we posted a comparison of the Navi family of GPUs, including the new Navi 23:

Property	Navi 10	Navi 14	Navi 12	Navi 21	Navi 22	Navi 23	Navi 31
num_se	2	1	2	4	2	2	4
num_cu_per_sh	10	12	10	10	10	8	10
num_sh_per_se	2	2	2	2	2	2	2
num_rb_per_se	8	8	8	4	4	4	4
num_tccs	16	8	16	16	12	8	16
num_gprs	1024	1024	1024	1024	1024	1024	1024
num_max_gs_thds	32	32	32	32	32	32	32
gs_table_depth	32	32	32	32	32	32	32
gsprim_buff_depth	1792	1792	1792	1792	1792	1792	1792
parameter_cache_depth	1024	1024	1024	1024	1024	1024	1024
double_offchip_lds_buffer	1	1	1	1	1	1	1
wave_size	32	32	32	32	32	32	32
max_waves_per_simd	20	20	20	16	16	16	16
max_scratch_slots_per_cu	32	32	32	32	32	32	32
lds_size	64	64	64	64	64	64	64
num_sc_per_sh	1	1	1	1	1	1	1
num_packer_per_sc	2	2	2	4	4	4	4
num_gl2a	N/A	N/A	N/A	4	2	2	4
unknown0	N/A	N/A	N/A	10	10	8	10
unknown1	N/A	N/A	N/A	16	12	8	16
unknown2	N/A	N/A	N/A	80	40	32	80
num_cus (computed)	40	24	40	80	40	32	80

"WhyCry" at VideoCardz states:

Both the mobile Radeon RX 6600M as well as a desktop and mobile workstation Radeon PRO W6600M feature 1792 Stream Processors. With that in mind, 10 TFLOPs of FP32 compute power is already impressive enough because it means those GPUs peak at 2.9 GHz within 90-100W TDP.

AMD Radeon RX 6600 series specifications that we posted in more detail earlier this month.

AMD Radeon RX 6000 Series "RDNA 2" Graphics Card Lineup:

Graphics Card	AMD Radeon RX 6600	AMD Radeon RX 6600 XT	AMD Radeon RX 6700	AMD Radeon RX 6700 XT	AMD Radeon RX 6800	AMD Radeon RX 6800 XT	AMD Radeon RX 6900 XT	AMD Radeon RX 6900 XT Liquid Cooled
GPU	Navi 23 (XL?)	Navi 23 (XT?)	Navi 22 (XL?)	Navi 22 (XT?)	Navi 21 XL	Navi 21 XT	Navi 21 XTX	Navi 21 XTXH
Process Node	7nm	7nm	7nm	7nm	7nm	7nm	7nm	7nm
Die Size	237mm2	237mm2	336mm2	336mm2	520mm2	520mm2	520mm2	520mm2
Transistors	11.06 Billion	11.06 Billion	17.2 Billion	17.2 Billion	26.8 Billion	26.8 Billion	26.8 Billion	26.8 Billion
Compute Units	28	32	36	40	60	72	80	80
Stream Processors	1792	2048	2304	2560	3840	4608	5120	5120
TMUs/ROPs	TBA	TBA	TBA	160/64	240 / 96	288 / 128	320 / 128	320 / 128
Game Clock	TBA	TBA	TBA	2424 MHz	1815 MHz	2015 MHz	2015 MHz	2250 MHz
Boost Clock	TBA	TBA	TBA	2581 MHz	2105 MHz	2250 MHz	2250 MHz	2345 MHz
FP32 TFLOPs	TBA	TBA	TBA	13.21 TFLOPs	16.17 TFLOPs	20.74 TFLOPs	23.04 TFLOPs	24.01 TFLOPs
Memory Size	8 GB GDDR6 + 32 MB Infinity Cache?	8 GB GDDR6 + 32 MB Infinity Cache?	12 GB GDDR6 + 96 MB Infinity Cache?	12 GB GDDR6 + 96 MB Infinity Cache	16 GB GDDR6 +128 MB Infinity Cache	16 GB GDDR6 +128 MB Infinity Cache	16 GB GDDR6 +128 MB Infinity Cache	16 GB GDDR6 +128 MB Infinity Cache
Memory Bus	128-bit?	192-bit	192-bit	192-bit	256-bit	256-bit	256-bit	256-bit
Memory Clock	16 Gbps?	16 Gbps?	16 Gbps?	16 Gbps	16 Gbps	16 Gbps	16 Gbps	18 Gbps
Bandwidth	256 GB/s?	256 GB/s?	384 GB/s	384 GB/s	512 GB/s	512 GB/s	512 GB/s	576 GB/s
TDP	TBA	TBA	TBA	230W	250W	300W	300W	330W
Price	TBA	TBA	TBA	$479 US	$579 US	$649 US	$999 US	~$1199 US

With the public having no access to the Navi 23 GPU or any driver information for the new GPU, there is still a large amount of guesswork and speculation until AMD releases information on their new graphics cards, such as the Radeon RX 6600XT GPU. But, this new information about the Navi 23 GPU definitely helps give us most of the clues regarding the RDNA2 chips powering both Sony and Microsoft's home consoles.

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AMD Confirms: Navi 23 GPU Has 64 ROPs and 32 Ray Tracing Cores - Wccftech
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