Launched | December 13, 2022 |
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Designed by | AMD |
Manufactured by | |
Fabrication process | |
Codename(s) |
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Product Series | |
Desktop | |
Professional/workstation | |
Specifications | |
Compute |
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Clock rate | 1500 MHz to 2500 MHz |
Shader clock rate | 2269 MHz |
L0 cache | 64 KB (per WGP):
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L1 cache | 256 KB per array |
L2 cache | 6 MB |
L3 cache | up to 96 MB (16 MB per MCD) |
Memory support | GDDR6 |
Memory clock rate | 20 Gbps |
PCIe support | PCIe 4.0 |
Supported Graphics APIs | |
Direct3D | Direct3D 12.0 Ultimate (feature level 12_2) |
Shader Model | Shader Model 6.7 |
OpenCL | OpenCL 2.1 |
OpenGL | OpenGL 4.6 |
Vulkan | Vulkan 1.3 |
Media Engine | |
Encode codecs | |
Decode codecs | |
Color bit-depth |
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Encoder(s) supported |
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Display outputs | |
History | |
Predecessor | RDNA 2 |
Variant | CDNA 3 (datacenter) |
Successor | RDNA 4 |
Support status | |
Supported |
RDNA 3 is a GPU microarchitecture designed by AMD, released with the Radeon RX 7000 series on December 13, 2022. Alongside powering the RX 7000 series, RDNA 3 is also featured in the SoCs designed by AMD for the Asus ROG Ally and Lenovo Legion Go consoles.
On June 9, 2022, AMD held their Financial Analyst Day where they presented a client GPU roadmap which contained mention of RDNA 3 coming in 2022 and RDNA 4 coming in 2024. [1] AMD announced to investors their intention to achieve a performance-per-watt uplift of over 50% with RDNA 3 and that the upcoming architecture would be built using chiplet packaging on a 5 nm process. [2]
A sneak preview for RDNA 3 was included towards the end of AMD's Ryzen 7000 unveiling event on August 29, 2022. The preview included RDNA 3 running gameplay of Lies of P , AMD CEO Lisa Su confirming that a chiplet design would be used, and a partial look at AMD's reference design for an RDNA 3 GPU. [3]
Full details for the RDNA 3 architecture were unveiled on November 3, 2022 at an event in Las Vegas. [4]
For the first time ever in a consumer GPU, RDNA 3 utilizes modular chiplets. AMD previously had great success with its use of chiplets in its Ryzen desktop and Epyc server processors. [5]
The decision to move to a chiplet-based GPU microarchitecture was led by AMD Senior Vice President Sam Naffziger who had also lead the chiplet initiative with Ryzen and Epyc. [6] The development of RDNA 3's chiplet architecture began towards the end of 2017 with Naffziger leading the AMD graphics team in the effort. [7]
With a respective 2.05 billion transistors, each Memory Cache Die (MCD) contains large blocks of L3 cache and two physical 32-bit GDDR6 memory interfaces for a combined 64-bit interface per MCD. [8] The Radeon RX 7900 XTX has a 384-bit memory bus through the use of six MCDs while the RX 7900 XT has a 320-bit bus due to its five MCDs.
The chiplet interconnects have a bandwidth of 5.3 TB/s. [9]
According to Naffziger, cache and SRAM do not scale as linearly as logic does on advanced nodes like N5 in terms of density and power consumption so they can instead be fabricated on the cheaper, more mature N6 node. The use of smaller chiplet dies rather than one large monolithic die is beneficial for maximizing wafer yields as more dies can be fitted onto a single wafer. [7]
RDNA 3 includes improved dual-issue shader ALUs with the ability to execute two instructions per cycle. It can contain up to 96 graphics Compute Units that can provide up to 61 TFLOPS of compute. [10]
RDNA 3 has dedicated AI acceleration with Wave MMA (matrix multiply-accumulate) instructions, [11] which can improve AI-based performance by 2.7x and also benefits ray tracing instructions, similar to Nvidia's Tensor cores. [10]
RDNA 3 features 2nd generation ray-tracing accelerators. Each Compute Unit contains one ray tracing accelerator. The overall number of ray tracing accelerators is increased due to the higher number of Compute Units, though the number of ray tracing accelerators per Compute Unit has not increased over RDNA 2.
RDNA 3 was designed to support high clock speeds. On RDNA 3, clock speeds have been decoupled with the front end operating at a 2.5 GHz frequency while the shaders operate at 2.3 GHz. The shaders operating at a lower clock speed gives up to 25% power savings according to AMD and RDNA 3's shader clock speed is still 15% faster than RDNA 2. [12]
RDNA 3 GPUs use GDDR6 memory rather than faster GDDR6X due to the latter's increased power consumption.
16 MB Infinity Cache is included on each MCD. Theoretically, additional L3 cache could be added to the MCDs via AMD's 3D V-Cache die stacking technology as the MCDs contain unused TSV connection points. [13] [14]
AMD claims that RDNA 3 achieves a 54% increase in performance-per-watt which is in line with their previous claims of 50% performance-per-watt increases for both RDNA and RDNA 2.
RDNA 3 is the first RDNA architecture to have a dedicated media engine. It is built into the GCD and is based on VCN 4.0 encoding and decoding core. [15] AMD's AMF AV1 encoder is comparable in quality to Nvidia's NVENC AV1 encoder but can handle a higher number of simultaneous encoding streams compared to the limit of 3 on the GeForce RTX 40 series. [16]
Resolution | H.264 | H.265 | AV1 |
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1080p60 | |||
1440p60 | |||
4K60 | 180 | 180 | 240 |
8K60 | 48 | 48 | 60 |
RDNA 3 GPUs feature a new display engine called the "Radiance Display Engine". AMD touted its support for DisplayPort 2.1 UHBR 13.5, delivering up to 54 Gbit/s bandwidth for high refresh rates at 4K and 8K resolutions. [18] The Radeon Pro W7900 and W7800 support UHBR 20. DisplayPort 2.1 can support 4K at 480 Hz and 8K at 165 Hz with Display Stream Compression (DSC). The previous DisplayPort 1.4 standard with DSC was limited to 4K at 240 Hz and 8K at 60 Hz.
Graphics Compute Die (GCD) | Memory Cache Die (MCD) | |||||
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Navi 31 [8] | Navi 32 | Navi 33 | ||||
Launch | Dec 2022 | Aug 2023 | Jan 2023 | Dec 2022 | ||
Codename | Plum Bonito | Wheat Nas | Hotpink Bonefish | — | ||
Compute units (Stream processors) [FP32 cores] | 96 (6144) [12288] | 60 (3840) [7680] | 32 (2048) [4096] | |||
Process | TSMC N5 | TSMC N6 | ||||
Transistors | 45.4B | 19.9B | 13.3B | 2.05B | ||
Transistor density | 150.2 MTr/mm2 | 101.5 MTr/mm2 | 65.2 MTr/mm2 | 54.64 MTr/mm2 | ||
Die size | 304.35 mm2 | 196 mm2 | 204 mm2 | 37.52 mm2 | ||
Max TDP | 405 W | 263 W | 200 W | — | ||
Products | Consumer | Desktop |
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Model (Code name) | Release date & price | Architecture & fab | Chiplets (active) | Transistors & die size [lower-alpha 1] | Core | Fillrate [lower-alpha 2] [lower-alpha 3] [lower-alpha 4] | Processing power [lower-alpha 2] [lower-alpha 5] (TFLOPS) | Infinity Cache | Memory | TBP | Bus interface | ||||||||
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Config [lower-alpha 6] [lower-alpha 7] | Clock [lower-alpha 2] (MHz) | Texture (GT/s) | Pixel (GP/s) | Half | Single | Double | Size (MB) | Bandwidth (GB/s) | Size (GB) | Bandwidth (GB/s) | Bus type & width | Clock (MT/s) | |||||||
Radeon RX 7600 (Navi 33) [20] | May 25, 2023 $269 USD | RDNA 3 TSMC N6 | — | 13.3×109 204 mm2 | 2048:128:64 32:64:32 CU | 1720 2655 | 220.2 339.8 | 110.1 169.9 | 28.18 43.50 | 14.09 21.75 | 0.440 0.680 | 32 | 476.9 | 8 | 288 | GDDR6 128-bit | 18000 | 165 W | PCIe 4.0 ×8 |
Radeon RX 7600 XT (Navi 33) [21] [22] | Jan 24, 2024 $329 USD | 1720 2755 | 220.2 352.6 | 110.1 176.3 | 28.18 45.14 | 14.09 22.57 | 0.440 0.705 | 16 | 190 W | ||||||||||
Radeon RX 7700 XT (Navi 32) [23] | Sep 6, 2023 $449 USD | RDNA 3 TSMC N5 (GCD) TSMC N6 (MCD) | 1 × GCD 3 × MCD | 28.1×109 346 mm2 | 3456:216:96 54:108:54 CU | 1900 2544 | 410.4 549.5 | 182.4 244.2 | 52.53 70.34 | 26.27 35.17 | 0.821 1.099 | 48 | 1995 | 12 | 432 | GDDR6 192-bit | 245 W | PCIe 4.0 ×16 | |
Radeon RX 7800 XT (Navi 32) [24] | Sep 6, 2023 $499 USD | 1 × GCD 4 × MCD | 3840:240:96 60:120:60 CU | 1800 2430 | 432 583.2 | 172.8 233.2 | 55.30 74.65 | 27.64 37.32 | 0.864 1.166 | 64 | 2708 | 16 | 624 | GDDR6 256-bit | 19500 | 263 W | |||
Radeon RX 7900 GRE (Navi 31) [25] | Jul 27, 2023 China only, Feb 27, 2024 $549 USD | 57.7×109 529 mm2 | 5120:320:192 80:160:80 CU | 1270 2245 | 406.4 718.4 | 243.8 431.0 | 52.02 91.96 | 26.01 45.98 | 0.813 1.437 | 2250 | 576 | 18000 | 260 W | ||||||
Radeon RX 7900 XT (Navi 31) [26] | Dec 13, 2022 $899 USD | 1 × GCD 5 × MCD | 5376:336:192 84:168:84 CU | 1500 2400 | 504.0 806.4 | 288.0 460.8 | 64.51 103.2 | 32.26 51.61 | 1.008 1.613 | 80 | 2900 | 20 | 800 | GDDR6 320-bit | 20000 | 315 W | |||
Radeon RX 7900 XTX (Navi 31) [27] | Dec 13, 2022 $999 USD | 1 × GCD 6 × MCD | 6144:384:192 96:192:96 CU | 1900 2500 | 729.6 960.0 | 364.8 480.0 | 93.39 122.9 | 46.69 61.44 | 1.459 1.920 | 96 | 3500 | 24 | 960 | GDDR6 384-bit | 355 W |
Model (Code name) | Release date | Architecture & fab | Chiplets (active) | Transistors & die size | Core | Fillrate [lower-alpha 1] [lower-alpha 2] [lower-alpha 3] | Processing power [lower-alpha 1] [lower-alpha 4] (TFLOPS) | Infinity Cache | Memory | TDP | Bus interface | |||||||
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Config [lower-alpha 5] | Clock [lower-alpha 1] (MHz) | Texture (GT/s) | Pixel (GP/s) | Half | Single | Double | Size (GB) | Bandwidth (GB/s) | Bus type & width | Clock (MT/s) | ||||||||
Radeon RX 7600S (Navi 33) [28] | Jan 4, 2023 | RDNA 3 TSMC N6 | — | 13.3×109 204 mm2 | 1792:112:64 28:56:28 CU | 1500 2200 | 168.0 246.4 | 96.00 140.8 | 21.50 31.54 | 10.75 15.77 | 0.336 0.493 | 32 MB | 8 | 256 | GDDR6 128-bit | 16000 | 75 W | PCIe 4.0 ×8 |
Radeon RX 7600M (Navi 33) [29] | 1500 2410 | 168.0 269.9 | 96.00 154.2 | 21.50 34.55 | 10.75 17.28 | 0.336 0.540 | 90 W | |||||||||||
Radeon RX 7600M XT (Navi 33) [30] | 2048:128:64 32:64:32 CU | 1500 2615 | 192.0 334.1 | 96.00 167.0 | 24.58 42.84 | 12.29 21.42 | 0.384 0.669 | 288 | 18000 | 120 W | ||||||||
Radeon RX 7700S (Navi 33) [31] | 1500 2500 | 192.0 320.0 | 96.00 160.0 | 24.58 40.96 | 12.29 20.48 | 0.384 0.640 | 100 W | |||||||||||
Radeon RX 7900M (Navi 31) [32] | Oct 19, 2023 | RDNA 3 TSMC N5 (GCD) TSMC N6 (MCD) | 1 × GCD 4 × MCD | 57.7×109 529 mm2 | 4608:288:192 72:144:72 CU | 2090 | 601.9 | 401.3 | 77.05 | 38.52 | 1.204 | 64 MB | 16 | 576 | GDDR6 256-bit | 180 W | PCIe 4.0 ×16 |
Model (Code name) | Release date & price | Architecture & fab | Chiplets (active) | Transistors & die size [lower-alpha 1] | Core | Fillrate [lower-alpha 2] [lower-alpha 3] [lower-alpha 4] | Processing power [lower-alpha 2] [lower-alpha 5] (TFLOPS) | Infinity Cache | Memory | TDP | Bus interface | |||||||
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Config [lower-alpha 6] [lower-alpha 7] | Clock [lower-alpha 2] (MHz) | Texture (GT/s) | Pixel (GP/s) | Half | Single | Double | Size (GB) | Bandwidth (GB/s) | Bus type & width | Clock (MT/s) | ||||||||
Radeon Pro W7500 (Navi 33) [33] [34] [35] | Aug 3, 2023 $429 USD | RDNA 3 TSMC N6 | — | 13.3×109 204 mm2 | 1792:112:64 28:56:28 CU | 1700 | 190.4 | 108.8 | 24.37 | 12.19 | 0.381 | 32 MB | 8 | 172 | GDDR6 128-bit | 18000 | 70 W | PCIe 4.0 ×8 |
Radeon Pro W7600 (Navi 33) [36] [34] [37] | Aug 3, 2023 $599 USD | 2048:128:64 32:64:32 CU | 2440 | 312.3 | 156.2 | 39.98 | 19.99 | 0.625 | 288 | 130 W | ||||||||
Radeon Pro W7700 (Navi 32) [38] | Nov 13, 2023 $999 USD | RDNA 3 TSMC N5 (GCD) TSMC N6 (MCD) | 1 × GCD 4 × MCD | 28.1×109 ~346 mm2 | 3072:192:96 48:96:48 CU | 2300 | 441.6 | 220.8 | 56.54 | 28.3 | 0.884 | 64 MB | 16 | 576 | GDDR6 256-bit | 190 W | PCIe 4.0 ×16 | |
Radeon Pro W7800 (Navi 31) [39] [40] [41] | 2023 $2499 USD | 57.7×109 ~531 mm2 | 4480:280:128 70:128:70 CU | 2525 | 707 | 323.2 | 90.50 | 45.25 | 1.414 | 32 | 260 W | |||||||
Radeon Pro W7900 (Navi 31) [42] [40] [43] | 2023 $3999 USD | 1 × GCD 6 × MCD | 6144:384:192 96:192:96 CU | 2495 | 958.1 | 479 | 122.6 | 61.32 | 1.916 | 96 MB | 48 | 864 | GDDR6 384-bit | 295 W |
Model | Launch | Codename | Architecture & fab | Die size | Core | Fillrate [lower-alpha 1] [lower-alpha 2] [lower-alpha 3] | Processing power [lower-alpha 1] [lower-alpha 4] (GFLOPS) | Cache | TDP | ||||||
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Config [lower-alpha 5] [lower-alpha 6] | Clock [lower-alpha 1] (MHz) | Texture (GT/s) | Pixel (GP/s) | Half | Single | Double | L0 | L1 | L2 | ||||||
Radeon 740M | Apr 2023 | Phoenix | RDNA 3 TSMC N4 | 178 mm2 | 4 CU 256:16:8:4 | 2,500 | 40.0 | 20.0 | 5,120 | 2,560 | 80.0 | 64 KB | 512 KB | 2 MB | 15–30 W |
Ryzen Z1 | 2,735 | 43.7 | 21.8 | 5,600 | 2,800 | 87.5 | 9–30 W | ||||||||
Radeon 760M | 8 CU 512:32:16:8 | 1,000 2,600 | 32.0 83.2 | 21.3 55.5 | 4,096 10,649 | 2,048 5,324 | 64.0 166.4 | 128 KB | 1 MB | 35–65 W | |||||
Radeon 780M | 12 CU 768:48:24:12 | 2,700 2,800 | 129.6 134.4 | 64.8 67.2 | 16,588 17,203 | 8,294 8,600 | 259.2 268.8 | 192 KB | 1.5 MB | 35–65 W | |||||
Ryzen Z1 Extreme | 2,800 | 134.4 | 67.2 | 17,203 | 8,600 | 268.8 | 9–30 W |
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