Radeon HD 8670A vs HD 6950

Primary details

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

Place in the ranking	555	not rated
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	1.04	no data
Power efficiency	2.34	no data
Architecture	TeraScale 3 (2010−2013)	GCN 1.0 (2011−2020)
GPU code name	Cayman	Sun
Market segment	Desktop	Laptop
Design	reference	no data
Release date	14 December 2010 (13 years ago)	2 February 2013 (11 years ago)
Launch price (MSRP)	$299	no data

Cost-effectiveness evaluation

Performance to price ratio. The higher, the better.

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	1408	320
Core clock speed	no data	600 MHz
Boost clock speed	800 MHz	no data
Number of transistors	2,640 million	690 million
Manufacturing process technology	40 nm	28 nm
Power consumption (TDP)	500 Watt	45 Watt
Texture fill rate	70.40	12.00
Floating-point processing power	2.253 TFLOPS	0.384 TFLOPS
ROPs	32	8
TMUs	88	20

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).

Bus support	PCIe 2.0 x16	no data
Interface	PCIe 2.0 x16	MXM-A (3.0)
Length	267 mm	no data
Width	2-slot	no data
Supplementary power connectors	2x 6-pin	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	GDDR5	DDR3
Maximum RAM amount	2 GB	1 GB
Memory bus width	256 Bit	64 Bit
Memory clock speed	1250 MHz	1000 MHz
Memory bandwidth	no data	16 GB/s

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	2x DVI, 1x HDMI, 2x mini-DisplayPort	No outputs
Eyefinity	+	-
HDMI	+	-

Supported technologies

Supported technological solutions. This information will prove useful if you need some particular technology for your purposes.

CrossFire

+

-

API compatibility

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

DirectX	DirectX® 11	12 (11_1)
Shader Model	5.0	5.1
OpenGL	4.4	4.6
OpenCL	1.2	1.2
Vulkan	-	1.2.131

Pros & cons summary

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Recency	14 December 2010	2 February 2013
Maximum RAM amount	2 GB	1 GB
Chip lithography	40 nm	28 nm
Power consumption (TDP)	500 Watt	45 Watt

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