Radeon 680M vs Pro Duo Polaris

Primary details

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

Place in the ranking	not rated	529
Place by popularity	not in top-100	not in top-100
Power efficiency	no data	13.69
Architecture	GCN 4.0 (2016−2020)	RDNA 2.0 (2020−2025)
GPU code name	Ellesmere	Rembrandt+
Market segment	Workstation	Laptop
Release date	24 April 2017 (9 years ago)	3 January 2023 (3 years ago)
Launch price (MSRP)	$999	no data

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	2304 ×2	768
Core clock speed	1243 MHz	2000 MHz
Boost clock speed	no data	2200 MHz
Number of transistors	5,700 million	13,100 million
Manufacturing process technology	14 nm	6 nm
Power consumption (TDP)	250 Watt	50 Watt
Texture fill rate	179.0 ×2	105.6
Floating-point processing power	5.728 TFLOPS ×2	3.379 TFLOPS
ROPs	32 ×2	32
TMUs	144 ×2	48
Ray Tracing Cores	no data	12
L0 Cache	no data	192 KB
L1 Cache	576 KB	256 KB
L2 Cache	2 MB	2 MB
L3 Cache	no data	8 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	PCIe 4.0 x8
Length	305 mm	no data
Width	2-slot	no data
Supplementary power connectors	1x 6-pin + 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	16 GB ×2	System Shared
Memory bus width	256 Bit ×2	System Shared
Memory clock speed	1750 MHz	System Shared
Memory bandwidth	224.0 GB/s ×2	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 2.0b, 3x DisplayPort 1.4a	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	6.7	6.7
OpenGL	4.6	4.6
OpenCL	2.1	2.0
Vulkan	1.3	1.3

Pros & cons summary

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Recency	24 April 2017	3 January 2023
Chip lithography	14 nm	6 nm
Power consumption (TDP)	250 Watt	50 Watt