Radeon R9 390X2 vs RX 6600 XT

Primary details

GPU architecture, market segment, value for money and other general parameters compared.

Place in the ranking	91	not rated
Place by popularity	93	not in top-100
Cost-effectiveness evaluation	62.98	no data
Power efficiency	18.39	no data
Architecture	RDNA 2.0 (2020−2024)	GCN (2012−2015)
GPU code name	Navi 23	no data
Market segment	Desktop	Desktop
Release date	30 July 2021 (3 years ago)	no data
Launch price (MSRP)	$379	no data

Cost-effectiveness evaluation

Performance to price ratio. The higher, the better.

Detailed specifications

General parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.

Pipelines / CUDA cores	2048	2
Core clock speed	1968 MHz	no data
Boost clock speed	2589 MHz	1000 MHz
Number of transistors	11,060 million	no data
Manufacturing process technology	7 nm	no data
Power consumption (TDP)	160 Watt	no data
Texture fill rate	331.4	no data
Floating-point processing power	10.6 TFLOPS	no data
ROPs	64	no data
TMUs	128	no data
Ray Tracing Cores	32	no data

Form factor & compatibility

Information on compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop graphics cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility).

Interface	PCIe 4.0 x8	no data
Length	190 mm	no data
Width	2-slot	no data
Supplementary power connectors	1x 8-pin	no data

VRAM capacity and type

Parameters of VRAM installed: its type, size, bus, clock and resulting bandwidth. Integrated GPUs have no dedicated video RAM and use a shared part of system RAM.

Memory type	GDDR6	512
Maximum RAM amount	8 GB	no data
Memory bus width	128 Bit	5400 Bit
Memory clock speed	2000 MHz	no data
Memory bandwidth	256.0 GB/s	no data
Shared memory	-	no data

Connectivity and outputs

Types and number of video connectors present on the reviewed GPUs. As a rule, data in this section is precise only for desktop reference ones (so-called Founders Edition for NVIDIA chips). OEM manufacturers may change the number and type of output ports, while for notebook cards availability of certain video outputs ports depends on the laptop model rather than on the card itself.

Display Connectors	1x HDMI, 2x DisplayPort	no data
HDMI	+	-

API compatibility

List of supported 3D and general-purpose computing APIs, including their specific versions.

DirectX	12.0 Ultimate (12_2)	GDDR5
Shader Model	6.5	no data
OpenGL	4.6	no data
OpenCL	2.1	no data
Vulkan	1.2	-

Pros & cons summary

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