Radeon HD 6645G2 vs RX Vega 8 (Ryzen 2000/3000)

Primary details

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

Place in the ranking	660	not rated
Place by popularity	38	not in top-100
Power efficiency	20.62	no data
Architecture	Vega (2017−2020)	Terascale 2 (2009−2015)
GPU code name	Vega Raven Ridge	no data
Market segment	Laptop	Laptop
Release date	26 October 2017 (7 years ago)	14 June 2011 (13 years ago)

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	512	560
Core clock speed	300 MHz	no data
Boost clock speed	1200 MHz	no data
Number of transistors	9,800 million	no data
Manufacturing process technology	14 nm	40 nm
Power consumption (TDP)	15 Watt	no data
Texture fill rate	57.60	no data
Floating-point processing power	1.843 TFLOPS	no data
ROPs	8	no data
TMUs	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).

Laptop size	no data	medium sized
Interface	IGP	no data
Supplementary power connectors	None	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	System Shared	no data
Maximum RAM amount	System Shared	no data
Memory bus width	System Shared	no data
Memory clock speed	System Shared	no data
Shared memory	-	-

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

No outputs

no data

API compatibility

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

DirectX	12 (12_1)	11
Shader Model	6.4	no data
OpenGL	4.6	no data
OpenCL	2.1	no data
Vulkan	1.2	-

Pros & cons summary

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Recency	26 October 2017	14 June 2011
Chip lithography	14 nm	40 nm

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