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AMD Radeon RX 6600 XT with official images and data – RDNA2 in battle with GeForce RTX 3060

Disclaimer: The following article is machine translated from the original German, and has not been edited or checked for errors. Thank you for understanding!

We’re not officially allowed to publish much yet, but I’ve already summarized everything AMD has allowed us to know about the upcoming Radeon RX 6600 XT for today. Today, that means, AMD will unveil this graphics card at Chinajoy 2021. The event will take place this weekend, starting on Friday July 30, 2021 and it is considered certain that the card will finally be unveiled at the event as well.

There’s no mention of the RX 6600 Non-XT yet, but we’ll see what else AMD has in store. After all, the embargoes associated with this new RX 6600 XT have already been leaked extensively in the appropriate media: AMD’s announcement today, the unboxing reviews on August 6, and the launch on August 11, though it’s also been rumored often enough that testing and final details could probably be released as early as August 10, 2021. We’ll see.

The AMD Radeon RX 6600 XT relies on the Navi 23 XT GPU, which has 32 compute units or 2048 stream processors. The card also features 32MB of Infinity Cache and 8GB of GDDR6 memory running over a 128-bit wide bus interface. The Navi 23 GPU itself measures 237 mm2 and consists of 11.06 billion transistors. However, the GPU is still not the smallest chip in the RDNA 2 family, as Navi 24 is still expected here for the absolute entry-level range.


The memory speed will be at the usual 16 Gbps, which will then give a total bandwidth of 256 GB/s. Regarding the presumed performance data, it’s definitely worth taking a look at the slides in the gallery (see below). Even if AMD always cherry-picks such things (they deserve it), the values have actually always been right in the last time. They’re looking to go head-to-head with NVIDIA’s GeForce RTX 3060 and it’ll be interesting to see what the full range of benchmarks come up with then.

The ancestor gallery of the RDNA2 family looks like this after the launch:

Model AMD Radeon RX 6600 XT AMD Radeon RX 6700 XT AMD Radeon RX 6800 AMD Radeon RX 6800 XT AMD Radeon RX 6900 XT AMD Radeon RX 6900 XT LC
GPU Navi 23 (XT?) Navi 22 (XT?) Navi 21 XL Navi 21 XT Navi 21 XTX Navi 21 XTXH
Process node 7 nm 7 nm 7 nm 7 nm 7 nm 7 nm
The Size 237 mm2 336 mm2 520 mm2 520 mm2 520 mm2 520 mm2
11.06 billion 17.2 billion 26.8 billion 26.8 billion 26.8 billion 26.8 billion
Compute units 32 40 60 72 80 80
Shader 2048 2560 3840 4608 5120 5120
TMUs/ROPs TBA 160/64 240 / 96 288 / 128 320 / 128 320 / 128
Game clock 2359 MHz 2424 MHz 1815 MHz 2015 MHz 2015 MHz 2250 MHz
Boost Clock TBA 2581 MHz 2105 MHz 2250 MHz 2250 MHz 2345 MHz
Memory GDDR6
8 GB 12 GB 16 GB 16 GB 16 GB 16 GB
Infinity cache 32 MB 96 MB 128 MB 128 MB 128 MB 128 MB
Memory bus 192-bit 192-bit 256-bit 256-bit 256-bit 256-bit
Memory clock 16 Gbps 16 Gbps 16 Gbps 16 Gbps 16 Gbps 18 Gbps
Bandwidth 256 GB/s 384 GB/s 512 GB/s 512 GB/s 512 GB/s 576 GB/s
TDP 160 W 230 W 250 W 300 W 300 W 330 W

Of course I will stay tuned and will actively accompany the launch. You know, this time also with teardown again….



Lade neue Kommentare



292 Kommentare 297 Likes

Ne richtige Karte für den Käufer Markt. Leider
Bin gespannt auf die benches ob überhaupt die 5700 oder Vega geschlagen werden kann.

Antwort 1 Like

Igor Wallossek


10,046 Kommentare 18,486 Likes

Wir sind ja bald schlauer :)

Antwort 1 Like



543 Kommentare 498 Likes

Ich brauche u.a. eine Karte für einen PCIe-3.0 Rechner. Da ist die PCIe-8-fach-Anbindung schon wieder suboptimal.
Die R9-280 ist doch langsam am Ende.


Antwort Gefällt mir



159 Kommentare 88 Likes

Auf die Leistung an PCIe 3.0 bin ich auch gespannt.

Antwort Gefällt mir



332 Kommentare 129 Likes

In der Tabelle ist ein Fehler bei der 6600XT:

Memory Bus 192-bit

Die Karte hat doch nur 128-Bit SI.

Antwort Gefällt mir



395 Kommentare 136 Likes

Mit der RX 5500 XT hatte ich ~ 6 % weniger an Performance als sie über PCIe 3.0 lief und das waren je nach Spiel 3 - 9 FPS die mir so nicht aufgefallen sind und nur messbar waren.
Bei der RX 6600 XT wird es schätze ich ähnlich sein und der kleine Infinity Cache könnte noch für Überraschung sorgen ( PCIE 4.0 vs 3.0 ).

Antwort Gefällt mir



42 Kommentare 14 Likes

Höre bzw. lese ich zum ersten mal, dass die 6900XT (mit XTXH) 18 Gbps Speicher hat/haben soll ?!?

MfG Föhn.

Antwort Gefällt mir

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About the author

Igor Wallossek

Editor-in-chief and name-giver of igor'sLAB as the content successor of Tom's Hardware Germany, whose license was returned in June 2019 in order to better meet the qualitative demands of web content and challenges of new media such as YouTube with its own channel.

Computer nerd since 1983, audio freak since 1979 and pretty much open to anything with a plug or battery for over 50 years.

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