Arc B390 vs Radeon RX 580X

Place in the ranking	346	297
Place by popularity	not in top-100	not in top-100
Power efficiency	7.46	no data
Architecture	GCN 4.0 (2016−2020)	Xe3-LPG (2026)
GPU code name	Polaris 20	Panther Lake
Market segment	Desktop	Laptop
Release date	11 April 2018 (8 years ago)	27 January 2026 (less than a year ago)

Detailed specifications

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

Pipelines / CUDA cores	2304	1536
Core clock speed	1257 MHz	300 MHz
Boost clock speed	1340 MHz	2500 MHz
Number of transistors	5,700 million	no data
Manufacturing process technology	14 nm	3 nm
Power consumption (TDP)	185 Watt	80 Watt
Texture fill rate	193.0	120.0
Floating-point processing power	6.175 TFLOPS	7.68 TFLOPS
ROPs	32	24
TMUs	144	48
Ray Tracing Cores	no data	12
L1 Cache	576 KB	768 KB
L2 Cache	2 MB	16 MB

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 3.0 x16	IGP
Length	241 mm	no data
Width	2-slot	no data
Supplementary power connectors	1x 8-pin	None

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	System Shared
Maximum RAM amount	8 GB	System Shared
Memory bus width	256 Bit	System Shared
Memory clock speed	2000 MHz	System Shared
Memory bandwidth	256.0 GB/s	no data
Shared memory	-	+

Connectivity and outputs

This section shows the types and number of video connectors on each GPU. The data applies specifically to desktop reference models (for example, NVIDIA’s Founders Edition). OEM partners often modify both the number and types of ports. On notebook GPUs, video‐output options are determined by the laptop’s design rather than the graphics chip itself.

Display Connectors	1x HDMI, 3x DisplayPort	Portable Device Dependent
HDMI	+	-

API and SDK support

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

DirectX	12 (12_0)	12 Ultimate (12_2)
Shader Model	6.4	6.9
OpenGL	4.6	4.6
OpenCL	2.0	3.0
Vulkan	1.2.131	1.4

Synthetic benchmarks

Non-gaming benchmark results comparison. The combined score is measured on a 0-100 point scale.

Combined synthetic benchmark score

This is our combined benchmark score.

RX 580X 17.99

Arc B390 21.69
+20.6%

Passmark

This is the most ubiquitous GPU benchmark. It gives the graphics card a thorough evaluation under various types of load, providing four separate benchmarks for Direct3D versions 9, 10, 11 and 12 (the last being done in 4K resolution if possible), and few more tests engaging DirectCompute capabilities.

RX 580X 7426
Samples: 25

Arc B390 8954
+20.6%

Samples: 206

Gaming performance

Let's see how good the compared graphics cards are for gaming. Particular gaming benchmark results are measured in FPS.

Average FPS across all PC games

Here are the average frames per second in a large set of popular games across different resolutions:

Full HD	55−60 −27.3%	70 +27.3%
1440p	27−30 −33.3%	36 +33.3%

Pros & cons summary

Performance score	17.99	21.69
Recency	11 April 2018	27 January 2026
Chip lithography	14 nm	3 nm
Power consumption (TDP)	185 Watt	80 Watt

Arc B390 has a 21% higher aggregate performance score, an age advantage of 7 years, a 367% more advanced lithography process, and 131% lower power consumption.

The Arc B390 is our recommended choice as it beats the Radeon RX 580X in performance tests.

Be aware that Radeon RX 580X is a desktop graphics card while Arc B390 is a notebook one.