Radeon HD 6740G2 vs Radeon R9 380X

If you are going to buy a new graphics card and are choosing between Radeon HD 6740G2 and Radeon R9 380X, there are a couple of things to consider. Cards with more VRAM in general perform better and allow you to play on higher graphics settings. Size also makes a difference. A model with a large heatsink can occupy up to three expansion slots on a motherboard. Be sure you have enough room in your PC case. When comparing GPUs with different architectures, more processing cores and even higher TFLOPS will not always translate to better performance. To help you decide which GPU you need, we have measured frame rates in a number of popular games. For more on how the Radeon HD 6740G2 stacks up against Radeon R9 380X, check out specs charts below.

Radeon HD 6740G2 is a Laptop Graphics Card

Note: Radeon HD 6740G2 is only used in laptop graphics. It has lower GPU clock speed compared to the desktop variant, which results in lower power consumption, but also 10-30% lower gaming performance. Check available laptop models with Radeon HD 6740G2 here:

Main Specs

  Radeon HD 6740G2 Radeon R9 380X
Power consumption (TDP) 190 Watt
Interface PCIe 3.0 x16
Memory type GDDR5
Maximum RAM amount 4 GB
Display Connectors 2x DVI, 1x HDMI, 1x DisplayPort
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  • Radeon HD 6740G2 is used in Laptops, and Radeon R9 380X - in Desktops.
  • Radeon HD 6740G2 is build with Terascale 2 architecture, and Radeon R9 380X - with GCN 3.0.
  • Radeon HD 6740G2 is manufactured by 40 nm process technology, and Radeon R9 380X - by 28 nm process technology.

Game benchmarks

high / 1080p 0−1 35−40
ultra / 1080p 0−1 21−24
QHD / 1440p 0−1 16−18
4K / 2160p 10−11
low / 720p 10−12 60−65
medium / 1080p 2−3 40−45
The average gaming FPS of Radeon R9 380X in Assassin's Creed Odyssey is 766% more, than Radeon HD 6740G2.

Full Specs

  Radeon HD 6740G2 Radeon R9 380X
Architecture Terascale 2 GCN 3.0
Code name Antigua
Type Laptop Desktop
Release date 14 June 2011 19 November 2015
Pipelines 880 2048
Boost Clock 970 MHz
Transistor count 5,000 million
Manufacturing process technology 40 nm 28 nm
Texture fill rate 124.2
Floating-point performance 3,973 gflops
Length 221 mm
Memory bus width 256 Bit
Memory clock speed 970 MHz
Memory bandwidth 182.4 GB/s
Shared memory -
DirectX DirectX 11, Shader 5.0
Shader Model 6.3
OpenGL 4.5
OpenCL 2.0
Vulkan +
Monero / XMR (CryptoNight) 0.58 kh/s
FreeSync +
Bus support PCIe 3.0
HDMI +
Laptop size medium sized
Eyefinity +
HD3D +
PowerTune +
TrueAudio +
ZeroCore +
Mantle +
Design reference
Bridgeless CrossFire +
Number of Eyefinity displays 6
DisplayPort support +
CrossFire +
VCE +
DDMA audio +
Decred / DCR (Decred) 0.89 Gh/s
Ethereum / ETH (DaggerHashimoto) 20.63 Mh/s
Zcash / ZEC (Equihash) 175 Sol/s
Compute units 32
Form factor full height / full length
High bandwidth memory (HBM) -
LiquidVR +
FRTC +
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