Radeon HD 6670A vs GeForce GTX 780M

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Primary details

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

Place in the ranking448not rated
Place by popularitynot in top-100not in top-100
Power efficiency5.91no data
ArchitectureKepler (2012−2018)TeraScale 2 (2009−2015)
GPU code nameGK104Turks
Market segmentLaptopLaptop
Release date11 May 2013 (11 years ago)19 April 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 cores1536480
Core clock speed823 MHz600 MHz
Boost clock speed797 MHzno data
Number of transistors3,540 million716 million
Manufacturing process technology28 nm40 nm
Power consumption (TDP)122 Watt45 Watt
Texture fill rate102.014.40
Floating-point processing power2.448 TFLOPS0.576 TFLOPS
ROPs328
TMUs12824

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 sizelargeno data
Bus supportPCI Express 3.0, PCI Express 2.0no data
InterfaceMXM-B (3.0)MXM-A (3.0)
Supplementary power connectorsNoneno data
SLI options+-

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 typeGDDR5GDDR5
Maximum RAM amount4 GB1 GB
Standard memory configurationGDDR5no data
Memory bus width256 Bit128 Bit
Memory clock speed2500 MHz1000 MHz
Memory bandwidth160.0 GB/s64 GB/s
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 ConnectorsNo outputsNo outputs
eDP 1.2 signal supportUp to 3840x2160no data
LVDS signal supportUp to 1920x1200no data
VGA аnalog display supportUp to 2048x1536no data
DisplayPort Multimode (DP++) supportUp to 3840x2160no data
HDMI+-
HDCP content protection+-
7.1 channel HD audio on HDMI+-
TrueHD and DTS-HD audio bitstreaming+-

Supported technologies

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

Blu-Ray 3D Support+-
H.264, VC1, MPEG2 1080p video decoder+-
Optimus+-
3D Vision / 3DTV Play+-

API compatibility

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

DirectX12 API11.2 (11_0)
Shader Model5.15.0
OpenGL4.54.4
OpenCL1.11.2
Vulkan1.1.126N/A
CUDA+-

Pros & cons summary


Recency 11 May 2013 19 April 2011
Maximum RAM amount 4 GB 1 GB
Chip lithography 28 nm 40 nm
Power consumption (TDP) 122 Watt 45 Watt

GTX 780M has an age advantage of 2 years, a 300% higher maximum VRAM amount, and a 42.9% more advanced lithography process.

HD 6670A, on the other hand, has 171.1% lower power consumption.

We couldn't decide between GeForce GTX 780M and Radeon HD 6670A. We've got no test results to judge.


Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.

Vote for your favorite

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NVIDIA GeForce GTX 780M
GeForce GTX 780M
AMD Radeon HD 6670A
Radeon HD 6670A

Comparisons with similar GPUs

We selected several comparisons of graphics cards with performance close to those reviewed, providing you with more options to consider.

Community ratings

Here you can see the user ratings of the compared graphics cards, as well as rate them yourself.


4.1 108 votes

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4.5 2 votes

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Questions & comments

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