Radeon HD 6970M X2 vs RX 580 2048SP

Primary details

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

Place in the ranking	334	not rated
Place by popularity	36	not in top-100
Power efficiency	9.33	no data
Architecture	GCN 4.0 (2016−2020)	TeraScale 2 (2009−2015)
GPU code name	Polaris 20	Blackcomb
Market segment	Desktop	Laptop
Release date	15 October 2018 (7 years ago)	4 January 2011 (14 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	2048	960 ×2
Core clock speed	1168 MHz	680 MHz
Boost clock speed	1284 MHz	no data
Number of transistors	5,700 million	1,700 million
Manufacturing process technology	14 nm	40 nm
Power consumption (TDP)	150 Watt	150 Watt
Texture fill rate	164.4	32.64 ×2
Floating-point processing power	5.259 TFLOPS	1.306 TFLOPS ×2
ROPs	32	32 ×2
TMUs	128	48 ×2
L1 Cache	512 KB	96 KB
L2 Cache	2 MB	512 KB

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	MXM-B (3.0)
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	GDDR5
Maximum RAM amount	8 GB	2 GB ×2
Memory bus width	256 Bit	256 Bit ×2
Memory clock speed	1750 MHz	900 MHz
Memory bandwidth	224.0 GB/s	115.2 GB/s ×2

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 DVI, 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)	11.2 (11_0)
Shader Model	6.4	5.0
OpenGL	4.6	4.4
OpenCL	2.0	1.2
Vulkan	1.2.131	N/A

Pros & cons summary

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Recency	15 October 2018	4 January 2011
Maximum RAM amount	8 GB	2 GB
Chip lithography	14 nm	40 nm

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