Radeon HD 6850 X2 vs Radeon R9 380X

If you are going to buy a new graphics card and are choosing between Radeon HD 6850 X2 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 6850 X2 stacks up against Radeon R9 380X, check out specs charts below.

Main Specs

  Radeon HD 6850 X2 Radeon R9 380X
Power consumption (TDP) 254 Watt 190 Watt
Interface PCIe 2.0 x16 PCIe 3.0 x16
Supplementary power connectors 2x 8-pin
Memory type GDDR5 GDDR5
Maximum RAM amount 2 GB 4 GB
Display Connectors 2x DVI, 1x HDMI, 1x DisplayPort 2x DVI, 1x HDMI, 1x DisplayPort
  Check Price
  • Radeon HD 6850 X2 has 33% more power consumption, than Radeon R9 380X.
  • Radeon HD 6850 X2 is connected by PCIe 2.0 x16, and Radeon R9 380X uses PCIe 3.0 x16 interface.
  • Radeon R9 380X has 2 GB more memory, than Radeon HD 6850 X2.
  • Both cards are used in Desktops.
  • Radeon HD 6850 X2 is build with TeraScale 2 architecture, and Radeon R9 380X - with GCN 3.0.
  • Radeon HD 6850 X2 is manufactured by 40 nm process technology, and Radeon R9 380X - by 28 nm process technology.
  • Memory clock speed of Radeon HD 6850 X2 is 3230 MHz higher, than Radeon R9 380X.

Game benchmarks

high / 1080p 12−14 35−40
ultra / 1080p 7−8 21−24
QHD / 1440p 2−3 16−18
4K / 2160p 10−11
low / 720p 27−30 60−65
medium / 1080p 16−18 40−45
The average gaming FPS of Radeon R9 380X in Assassin's Creed Odyssey is 176% more, than Radeon HD 6850 X2.

Full Specs

  Radeon HD 6850 X2 Radeon R9 380X
Architecture TeraScale 2 GCN 3.0
Code name Barts Antigua
Type Desktop Desktop
Release date 19 September 2011 19 November 2015
Pipelines 960 2048
Core clock speed 800 MHz
Boost Clock 970 MHz
Transistor count 1,700 million 5,000 million
Manufacturing process technology 40 nm 28 nm
Texture fill rate 38.40 124.2
Floating-point performance 2x 1,536.0 gflops 3,973 gflops
Length 221 mm
Memory bus width 256 Bit 256 Bit
Memory clock speed 4200 MHz 970 MHz
Memory bandwidth 134.4 GB/s 182.4 GB/s
DirectX 11.2 (11_0)
Shader Model 5.0 6.3
OpenGL 4.4 4.5
OpenCL 1.2 2.0
Vulkan N/A +
Monero / XMR (CryptoNight) 0.58 kh/s
FreeSync +
Bus support PCIe 3.0
HDMI +
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 +
  Check Price