GeForce GTX 680MX vs Radeon R9 M385

If you are going to buy a new graphics card and are choosing between GeForce GTX 680MX and Radeon R9 M385, 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 GeForce GTX 680MX stacks up against Radeon R9 M385, check out specs charts below.

GeForce GTX 680MX and Radeon R9 M385 are Laptop Graphics Cards

Note: GeForce GTX 680MX and Radeon R9 M385 are only used in laptop graphics. They have 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 GeForce GTX 680MX or Radeon R9 M385 here:

Main Specs

  GeForce GTX 680MX Radeon R9 M385
Power consumption (TDP) 122 Watt
Interface PCIe 3.0 x16
Memory type GDDR5 GDDR5
Maximum RAM amount 2 GB 4 GB
Display Connectors No outputs
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  • Radeon R9 M385 has 2 GB more memory, than GeForce GTX 680MX.
  • Both cards are used in Laptops.
  • GeForce GTX 680MX is build with Kepler architecture, and Radeon R9 M385 - with GCN.
  • GeForce GTX 680MX and Radeon R9 M385 are manufactured by 28 nm process technology.
  • Memory clock speed of GeForce GTX 680MX is 1000 MHz higher, than Radeon R9 M385.

Game benchmarks

high / 1080p 21−24 10−12
ultra / 1080p 12−14 6−7
QHD / 1440p 7−8 1−2
4K / 2160p 5−6
low / 720p 40−45 24−27
medium / 1080p 27−30 12−14
The average gaming FPS of GeForce GTX 680MX in Assassin's Creed Odyssey is 100% more, than Radeon R9 M385.

Full Specs

  GeForce GTX 680MX Radeon R9 M385
Architecture Kepler GCN
Code name Strato
Type Laptop Laptop
Release date 23 October 2012 16 June 2015
Pipelines 1536 896
Core clock speed 720 MHz
Boost Clock 1100 MHz
Transistor count 3540 Million 2,080 million
Manufacturing process technology 28 nm 28 nm
Texture fill rate 92.2 billion/sec 56.00
Floating-point performance 1,792 gflops
Memory bus width 256 Bit 128 Bit
Memory clock speed 2500 MHz 1500 MHz
Memory bandwidth 160 GB/s 76.8 GB/s
Shared memory - -
DirectX 12 API
Shader Model 6.3
OpenGL 4.5 4.4
OpenCL 1.1 Not Listed
CUDA +
FreeSync +
CUDA cores 1536
Bus support PCI Express 3.0 PCIe 3.0
SLI options +
3D Vision +
Bitcoin / BTC (SHA256) 57 Mh/s
Laptop size large medium sized
Optimus +
Eyefinity +
HD3D +
PowerTune +
DualGraphics +
TrueAudio +
ZeroCore +
Switchable graphics +
Mantle +
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