Radeon RX 6650M XT vs R9 390

Primary details

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

Place in performance ranking	224	not rated
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	12.47	no data
Architecture	GCN 2.0 (2013−2017)	RDNA 2 (2020−2022)
GPU code name	Grenada	Navi 23
Market segment	Desktop	Laptop
Design	reference	no data
Release date	18 June 2015 (8 years ago)	4 January 2022 (2 years ago)
Launch price (MSRP)	$329	no data
Current price	$20 (0.1x MSRP)	no data

Cost-effectiveness evaluation

Performance to price ratio. The higher, the better.

Detailed specifications

General performance parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. These parameters indirectly speak of performance, but for precise assessment you have to consider their benchmark and gaming test results. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.

Pipelines / CUDA cores	2560	2048
Boost clock speed	1000 MHz	2162 MHz
Number of transistors	6,200 million	11,060 million
Manufacturing process technology	28 nm	7 nm
Power consumption (TDP)	275 Watt	120 Watt
Texture fill rate	160.0	309.2
Floating-point performance	5,120 gflops	no data

Form factor & compatibility

Information on Radeon R9 390 and Radeon RX 6650M XT compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop video cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility). For notebook video cards it's notebook size, connection slot and bus, if the video card is inserted into a slot instead of being soldered to the notebook motherboard.

Laptop size	no data	large
Bus support	PCIe 3.0	no data
Interface	PCIe 3.0 x16	PCIe 4.0 x8
Length	275 mm	no data
Width	2-slot	no data
Supplementary power connectors	1 x 6-pin, 1 x 8-pin	None
Bridgeless CrossFire	1	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	GDDR5	GDDR6
High bandwidth memory (HBM)	-	no data
Maximum RAM amount	0 MB	8 GB
Memory bus width	512 Bit	128 Bit
Memory clock speed	1000 MHz	18000 MHz
Memory bandwidth	384 GB/s	256.0 GB/s
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	2x DVI, 1x HDMI, 1x DisplayPort	No outputs
Eyefinity	1	no data
Number of Eyefinity displays	6	no data
HDMI	+	no data
DisplayPort support	+	no data

Supported technologies

Supported technological solutions. This information will prove useful if you need some particular technology for your purposes.

AppAcceleration	-	no data
CrossFire	1	no data
Enduro	-	no data
FreeSync	1	no data
HD3D	-	no data
PowerTune	+	no data
TrueAudio	+	no data
ZeroCore	-	no data
VCE	+	no data
DDMA audio	+	no data

API compatibility

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

DirectX	DirectX® 12	12.0 Ultimate (12_2)
Shader Model	6.3	6.5
OpenGL	4.6	4.6
OpenCL	2.0	2.1
Vulkan	+	1.2
Mantle	+	no data

Pros & cons summary

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Recency	18 June 2015	4 January 2022
Chip lithography	28 nm	7 nm
Power consumption (TDP)	275 Watt	120 Watt

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