AMD is offering the Radeon RX 6600 XT for 380 euros against Nvidia’s GeForce RTX 3060

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AMD is offering the Radeon RX 6600 XT for 380 euros against Nvidia's GeForce RTX 3060

With the Radeon RX 6600 XT, AMD wants to offer gamers with full HD monitors an upgrade option and alternative to the GeForce RTX 3060 from Nvidia. The PCI Express 4.0 graphics card will be available for around 380 euros from August 11th from manufacturers such as Asrock, Asus, Biostart, Gigabyte, MSI, Powercolor, Sapphire, XFX and the company Yeston, which is mainly active in Asia, an AMD – There will be no reference design.

It remains to be seen whether the card will actually be available in sufficient numbers so that street prices do not go through the roof again immediately. In any case, AMD states that the card is not very attractive for crypto miners because it has a comparatively narrow memory interface, which reduces the mining performance.

The coolers of the cards shown so far occupy at least two slots, and many protrude well beyond the length of the card itself. At most, this is really necessary for particularly quiet cooling, because the card consumes around 160 watts according to the AMD starting specification and uses an 8-pin connector from the power supply unit. Only Asrock has already shown a short model with just a single fan. A second Asrock model, Gigabyte and XFX use three axial fans, the other manufacturers use two.

The RX 6600XT should be available from several partners and in complete OEM systems from August 11th.

(Image: AMD)

The card usually connects up to four screens to its DisplayPort 1.4 and HDMI 2.1 outputs. A maximum of four times 4K (3840 × 2160 pixels) at 120 Hertz or 5K (5120 × 2888 pixels) is possible, alternatively an 8K monitor with 60 Hz is also allowed – this is also what the Radeon Pro W6600 does. The GPU itself has five display engines.

The video encoders and decoders correspond to those of the other RX-6000 cards and relieve the processor when playing and creating videos in H.265 format, for example. The modern AV1 codec is processed for playback on the graphics card.

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The Radeon RX 6600 XT is home to the new Navi-23 chip, which AMD has presented with the mobile offshoot RX 6600M and the Pro W6600. On the RX 6600 XT, however, it is used in full configuration with all 32 compute units. The typical game clock is 2359 MHz and so the card achieves a computing power of 9.66 trillion single-precision computing steps per second (TFlops) – that is the level of the Radeon RX 5700 XT from the previous generation.

The Navi23 graphics chip with a total of 32 compute units and 32 MB Infinity cache is the heart of the Radeon RX 6600 XT, RX 6600M and Radeon Pro W6600.

(Image: AMD)

The RX 6600 XT has 8 GB of graphics memory – AMD does not currently allow other configurations for its partners. The GDDR6 memory is connected to the GPU with 128 parallel data lines and transmits 256 GByte / s. That is 43 percent less than the similarly powerful RX 5700 XT. As in the RX-6000 sister models, AMD uses a large buffer memory on the chip in the RX 6600 XT so that the card can still bring its performance to the road.

This so-called Infinity Cache has a capacity of 32 MB, but including the narrower memory interface per bit, it is only half as large as that of the RX 6700 XT (96 MB with 192 bits) and RX 6800/6900 (128 MB with 256 bits). At around 990 GB / s, it is almost four times as fast as the graphics memory.

Like the Radeon Pro W6600 and its mobile sister, the RX 6600 XT only communicates with the processor in the PC via eight PCI Express 4.0 lanes, which should not be a disadvantage in this performance class, but also for competitive esports games .

graphic card

Radeon RX 6600 XT

Radeon RX 6700 XT

Radeon RX 6800

Radeon RX 6800 XT

Graphics chip

Navi 23

Navi 22

Navi 21

Navi 21

Chip size / transistors

237 mm² / 11,06 Mrd.

336 mm² / 17,2 Mrd.

520 mm² / 26,8 Mrd.

520 mm² / 26,8 Mrd.

Compute Units / Shader-Kerne

32 / 2048

40 / 2560

60 / 3840

72 / 4608

Type. Boost clock in games

2359 MHz

2424 MHz

1815 MHz

2015 MHz

Computing power (FP32)

9,66 TFlops

12,41 TFlops

13,94 TFlops

18,57 TFlops

Texture Units / RT Accelerators

128 / 32

160 / 40

240 / 60

288 / 72

Raster output stages

32

64

96

128

Typical TDP

160 Watt

230 Watt

250 Watt

300 Watt

Storage

8 GByte GDDR6

12 GByte GDDR6

16 GByte GDDR6

16 GByte GDDR6

Memory interface

128 Bit (256 GByte/s)

192 Bit (384 GByte/s)

256 Bit (512 GByte/s)

256 Bit (512 GByte/s)

Infinity Cache

32 MByte (993 GByte/s)

96 MByte (1490 GByte/s)

128 MByte (1987 GByte/s)

128 MByte (1987 GByte/s)

Price RRP / street

379 Euro / n. v.

479 Euro / 790 Euro

549 Euro / 1050 Euro

649 Euro / 1170 Euro

In order to present the map, no own performance measurements may yet be published. AMD shows its own benchmarks of the Radeon RX 6600 XT, which are used in games such as “Forza Horizon 4”, “Cyberpunk 2077”, “Red Dead Redemption 2” and “Assassin’s Creed Valhalla” in full HD resolution between 2.2 and 2, It should be 5 times as fast as the still very popular GeForce GTX 1060.

Compared to its main competitor, Nvidia’s GeForce RTX 3060 with 12 GByte graphics memory, AMD sees the RX 6600 XT ahead of 10 current games by around 15 percent in full HD resolution; Both cards achieve frame rates of almost 70 to well over 100 frames per second.

AMD also provides comparative values ​​for its own competition. The Radeon RX 5600 XT is outbid by 40 to 70 percent – the latter in “Doom Eternal”, the former in “Assassin’s Creed Valhalla”, “Forza Horizon 4” and “Borderlands 3”.


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