GeForce GT 755M vs Radeon HD 6850 X2

When comparing GeForce GT 755M and Radeon HD 6850 X2, we look primarily at benchmarks and game tests. But it is not only about the numbers. Often you can find third-party models with higher clock speeds, better cooling, or a customizable RGB lighting. Not all of them will have all the features you need. Another thing to consider is the port selection. Most graphics cards have at least one DisplayPort and HDMI interface, but some monitors require DVI. Before you buy, check the TDP of the graphics card - this characteristic will help you estimate the consumption of the graphics card. You may even have to upgrade your PSU to meet its requirements. An important factor when choosing between GeForce GT 755M and Radeon HD 6850 X2 is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.

GeForce GT 755M is a Laptop Graphics Card

Note: GeForce GT 755M 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 GeForce GT 755M here:

Main Specs

  GeForce GT 755M Radeon HD 6850 X2
Power consumption (TDP) 50 Watt 254 Watt
Interface PCIe 3.0 x16 PCIe 2.0 x16
Supplementary power connectors 2x 8-pin
Memory type GDDR5 GDDR5
Maximum RAM amount 4 GB 2 GB
Display Connectors No outputs 2x DVI, 1x HDMI, 1x DisplayPort
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  • Radeon HD 6850 X2 has 408% more power consumption, than GeForce GT 755M.
  • GeForce GT 755M is connected by PCIe 3.0 x16, and Radeon HD 6850 X2 uses PCIe 2.0 x16 interface.
  • GeForce GT 755M has 2 GB more memory, than Radeon HD 6850 X2.
  • GeForce GT 755M is used in Laptops, and Radeon HD 6850 X2 - in Desktops.
  • GeForce GT 755M is build with Kepler architecture, and Radeon HD 6850 X2 - with TeraScale 2.
  • Core clock speed of GeForce GT 755M is 180 MHz higher, than Radeon HD 6850 X2.
  • GeForce GT 755M is manufactured by 28 nm process technology, and Radeon HD 6850 X2 - by 40 nm process technology.
  • Memory clock speed of GeForce GT 755M is 1200 MHz higher, than Radeon HD 6850 X2.

Game benchmarks

high / 1080p 7−8 12−14
ultra / 1080p 4−5 7−8
QHD / 1440p 0−1 2−3
low / 720p 18−20 27−30
medium / 1080p 9−10 16−18
The average gaming FPS of Radeon HD 6850 X2 in Assassin's Creed Odyssey is 60% more, than GeForce GT 755M.

Full Specs

  GeForce GT 755M Radeon HD 6850 X2
Architecture Kepler TeraScale 2
Code name N14P- Barts
Type Laptop Desktop
Release date 25 June 2013 19 September 2011
Pipelines 384 960
Core clock speed 980 MHz 800 MHz
Transistor count 1,270 million 1,700 million
Manufacturing process technology 28 nm 40 nm
Texture fill rate 31.36 38.40
Floating-point performance 752.6 gflops 2x 1,536.0 gflops
Memory bus width 128 Bit 256 Bit
Memory clock speed 5400 MHz 4200 MHz
Memory bandwidth 86.4 GB/s 134.4 GB/s
Shared memory -
DirectX 12 API 11.2 (11_0)
Shader Model 5.1 5.0
OpenGL 4.5 4.4
OpenCL 1.1 1.2
Vulkan 1.1.126 N/A
CUDA +
Bus support PCI Express 3.0, PCI Express 2.0
HDMI +
Bitcoin / BTC (SHA256) 27 Mh/s
Laptop size medium sized
Standard memory configuration GDDR5
eDP 1.2 signal support Up to 3840x2160
LVDS signal support Up to 1920x1200
DisplayPort Multimode (DP++) support Up to 3840x2160
HDCP content protection +
7.1 channel HD audio on HDMI +
TrueHD and DTS-HD audio bitstreaming +
H.264, VC1, MPEG2 1080p video decoder +
Optimus +
Blu-Ray 3D Support +
3D Vision / 3DTV Play +
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