Arc Pro B70 vs Radeon 660M

Primary details

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

Place in the ranking	572	not rated
Place by popularity	85	not in top-100
Power efficiency	14.82	no data
Architecture	RDNA 2.0 (2020−2025)	Xe2-HPG (2025−2026)
GPU code name	Rembrandt+	BMG-G31
Market segment	Laptop	Workstation
Release date	3 January 2023 (3 years ago)	26 March 2026 (recently)
Launch price (MSRP)	no data	$949

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	384	4096
Core clock speed	1500 MHz	2280 MHz
Boost clock speed	1900 MHz	2800 MHz
Number of transistors	13,100 million	no data
Manufacturing process technology	6 nm	5 nm
Power consumption (TDP)	40 Watt	230 Watt
Texture fill rate	45.60	716.8
Floating-point processing power	1.459 TFLOPS	22.94 TFLOPS
ROPs	16	128
TMUs	24	256
Ray Tracing Cores	6	32
L0 Cache	96 KB	no data
L1 Cache	128 KB	no data
L2 Cache	2 MB	16 MB
L3 Cache	8 MB	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	PCIe 5.0 x16
Length	no data	267 mm
Width	no data	2-slot
Supplementary power connectors	None	1x 8-pin

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	System Shared	GDDR6
Maximum RAM amount	System Shared	32 GB
Memory bus width	System Shared	256 Bit
Memory clock speed	System Shared	2375 MHz
Memory bandwidth	no data	608.0 GB/s
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	Portable Device Dependent	1x HDMI 2.1a, 3x DisplayPort 2.1
HDMI	-	+

API and SDK support

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

DirectX	12 Ultimate (12_2)	12 Ultimate (12_2)
Shader Model	6.7	6.6
OpenGL	4.6	4.6
OpenCL	2.0	3.0
Vulkan	1.3	1.4

Pros & cons summary

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Recency	3 January 2023	26 March 2026
Chip lithography	6 nm	5 nm
Power consumption (TDP)	40 Watt	230 Watt