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AMD has introduced a new model in the line of video cards based on the RDNA2 architecture — the Radeon RX 6600, which is a stripped-down version of the Radeon RX 6600 XT. Let’s get acquainted with the new product using the example of ASUS DUAL-RX6600-8G, check its overclocking potential, compare it with the Radeon RX 6600 XT and GeForce RTX 3060.

ASUS DUAL-RX6600-O8G

The Radeon RX 6600 is a full member of the new family of AMD graphics solutions, supporting all the benefits of the RDNA2 architecture. The graphics chip has special hardware blocks for accelerated tracing, supports AMD Smart Access Memory technology and AMD FidelityFX software technologies.

The Radeon RX 6600 XT and Radeon RX 6600 are based on the Navi 23 graphics processor. In the younger version, it is partially cut down in terms of computing units and operates at lower frequencies. Active 28 Compute Units with 1792 stream processors, 112 texture units and 28 trace acceleration units. The large L3 infinity Cache reaches up to 32MB.

ASUS DUAL-RX6600-O8G

The base frequency of the GPU is set at 1626 MHz, Game Clock — 2044 MHz, Boost Clock — 2491 MHz. The memory bus is 128 bits, eight gigabytes of GDDR6 are installed. The effective memory frequency is equivalent to 14000 MHz (for the RX 6600 XT it is 16000 MHz). Such simplifications made it possible to reduce the TDP of the video card to a modest 132 watts.

You can compare the characteristics of new items with older models and video cards of the previous generation using the table below.

Video adapter Radeon RX 6700 XT Radeon RX 6600 XT Radeon RX 6600 Radeon RX 5700 XT Radeon RX 5700 Radeon RX 5600 XT
Core Navi 22 Navi 23 Navi 23 Navi 10 Navi 10 Navi 10
Number of transistors, million pieces 17200 11060 11060 10300 10300 10300
Process technology, nm 7 7 7 7 7 7
Core area, sq. mm 335 237 237 251 251 251
Number of stream processors 2560 2048 1792 2560 2304 2304
Number of Ray Accelerator cores 40 32 28
Number of texture blocks 160 128 112 160 144 144
Number of render units 64 64 64 64 64 64
Base core frequency, MHz 2321 1968 1626 1605 1465 1130
Game Clock frequency, MHz 2424 2359 2044 1755 1625 1375
Boost frequency, MHz 2581 2589 2491 1905 1725 1560
Memory bus, bit 192 128 128 256 256 192
Memory type GDDR6 GDDR6 GDDR6 GDDR5 GDDR5 GDDR5
Memory frequency, MHz 16000 16000 14000 14000 14000 12000
Memory size, GB 12 8 8 8 8 6
Supported version of DirectX 12 Ultimate (12_2) 12 Ultimate (12_2) 12 Ultimate (12_2) 12 (12_1) 12 (12_1) 12 (12_1)
Interface PCI-E 4.0 8x PCI-E 4.0 8x PCI-E 4.0 PCI-E 4.0 PCI-E 4.0 PCI-E 4.0
Power, W 230 160 132 225 180 150

If the Radeon RX 6600 XT was positioned as a higher performance replacement for the Radeon RX 5700 XT, then the Radeon RX 6600 should outperform the Radeon RX 5700 at lower power consumption and hardware support for ray tracing. The advantages of the novelty also include an improved video processing unit Radeon Media Engine, which provides hardware-accelerated decoding and encoding of high-resolution video. It provides AV1 playback up to 4K@120Hz and 8K@30Hz, H.265 up to 8K@24, H.264 up to 4K@180 and VP9 up to 8K@24 and 4K@90. Video encoding is supported in H.264 4K@90 and H.264 4K@60, H.264 8K@24.

AMD is actively developing the AMD FidelityFX initiative to help developers bring their technology into games. These include AMD FidelityFX CAS sharpening, optimized Variable Rate Shading, and AMD FidelityFX Super Resolution (FSR) scaling. The latter technology helps to increase performance at high resolutions with heavy settings, for example, in Far Cry 6 with tracing (our review). The list of games that support AMD FSR is approaching 30, soon Call of Duty: Vanguard, Baldur’s Gate 3 and other projects will join them.

ASUS DUAL-RX6600-O8G

The new Windows 11 operating system is fully supported. And the regular release of new drivers allows you to get the best software support in new games.

ASUS DUAL-RX6600-O8G

Radeon RX 6600 is positioned as a powerful solution for Full HD resolution, allowing you to achieve high frame rates in all current games.

ASUS DUAL-RX6600-O8G

We got the ASUS Dual Radeon RX 6600 8GB video card with good cooling and standard frequencies. Therefore, based on the results of this review, it will be possible to draw general conclusions about the difference between the Radeon RX 6600 and Radeon RX 6600 XT series.

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