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

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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.

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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:

PropertyNavi 10Navi 14Navi 12Navi 21Navi 22Navi 23Navi 31
num_se2124224
num_cu_per_sh1012101010810
num_sh_per_se2222222
num_rb_per_se8884444
num_tccs168161612816
num_gprs1024102410241024102410241024
num_max_gs_thds32323232323232
gs_table_depth32323232323232
gsprim_buff_depth1792179217921792179217921792
parameter_cache_depth1024102410241024102410241024
double_offchip_lds_buffer1111111
wave_size32323232323232
max_waves_per_simd20202016161616
max_scratch_slots_per_cu32323232323232
lds_size64646464646464
num_sc_per_sh1111111
num_packer_per_sc2224444
num_gl2aN/AN/AN/A4224
unknown0N/AN/AN/A1010810
unknown1N/AN/AN/A1612816
unknown2N/AN/AN/A80403280
num_cus (computed)40244080403280

"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.

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

Graphics CardAMD Radeon RX 6950 XTAMD Radeon RX 6900 XTAMD Radeon RX 6800 XTAMD Radeon RX 6800AMD Radeon RX 6750 XTAMD Radeon RX 6700 XTAMD Radeon RX 6700AMD Radeon RX 6650 XTAMD Radeon RX 6600 XTAMD Radeon RX 6600AMD Radeon RX 6500 XTAMD Radeon RX 6400
GPUNavi 21 KXTXNavi 21 XTXNavi 21 XTNavi 21 XLNavi 22 KXTNavi 22 XTNavi 22 XLNavi 23 KXTNavi 23 (XT)Navi 23 (XL)Navi 24 (XT)Navi 24 (XL)
Process Node7nm7nm7nm7nm7nm7nm7nm7nm7nm7nm6nm6nm
Die Size520mm2520mm2520mm2520mm2336mm2336mm2336mm2237mm2237mm2237mm2107mm2107mm2
Transistors26.8 Billion26.8 Billion26.8 Billion26.8 Billion17.2 Billion17.2 Billion17.2 Billion11.06 Billion11.06 Billion11.06 Billion5.4 Billion5.4 Billion
Compute Units808072604040363232281612
Stream Processors51205120460838402560256023042048204817921024768
TMUs/ROPs320 / 128320 / 128288 / 128240 / 96160/64160/64144/64128/64128/64112/6464/3248/32
Game Clock2116 MHz2015 MHz2015 MHz1815 MHz2495 MHz2424 MHz2330 MHz2410 MHz2359 MHz2044 MHz2610 MHz2039 MHz
Boost Clock2324 MHz2250 MHz2250 MHz2105 MHz2600 MHz2581 MHz2495 MHz2635 MHz2589 MHz2491 MHz2815 MHz2321 MHz
FP32 TFLOPs23.80 TFLOPs23.04 TFLOPs20.74 TFLOPs16.17 TFLOPs13.31 TFLOPs13.21 TFLOPs11.50 TFLOPs10.79 TFLOPs10.6 TFLOPs9.0 TFLOPs5.7 TFLOPs3.5 TFLOPs
Memory Size16 GB GDDR6 +128 MB Infinity Cache16 GB GDDR6 +128 MB Infinity Cache16 GB GDDR6 +128 MB Infinity Cache16 GB GDDR6 +128 MB Infinity Cache12 GB GDDR6 + 96 MB Infinity Cache12 GB GDDR6 + 96 MB Infinity Cache10 GB GDDR5 + 80 MB Infinity Cache8 GB GDDR6 + 32 MB Infinity Cache8 GB GDDR6 + 32 MB Infinity Cache8 GB GDDR6 + 32 MB Infinity Cache4 GB / 8 GB GDDR6 + 16 MB Infinity Cache4 GB GDDR6 + 16 MB Infinity Cache
Memory Bus256-bit256-bit256-bit256-bit192-bit192-bit160-bit128-bit128-bit128-bit64-bit64-bit
Memory Clock18 Gbps16 Gbps16 Gbps16 Gbps18 Gbps16 Gbps16 Gbps17.5 Gbps16 Gbps14 Gbps18 Gbps14 Gbps
Bandwidth576 GB/s512 GB/s512 GB/s512 GB/s432 GB/s384 GB/s320 GB/s280 GB/s256 GB/s224 GB/s144 GB/s112 GB/s
TDP335W300W300W250W250W230W220W176W160W132W107W53W
Price$1099 US$999 US$649 US$579 US$549 US$479 USTBD$399 US$379 US$329 US$199 US$159 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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