GeForce GTX 780M vs Radeon HD 6990M

In this comparison between GeForce GTX 780M and Radeon HD 6990M you will find out which graphics card performs better in today's games. Bear in mind that third-party versions may have more efficient cooling and higher clock speeds. This will increase cards' performance, though not by much. In addition to raw power you should also take into account the dimensions. Thicker models simply will not fit into a small mini-ITX case. The resolution of your monitor also affects the choice, since 4K gameplay requires a more powerful GPU. And don't overspend on the graphics card. Other parts of your build may also need to be upgraded, save some money for the CPU or power supply. For some people GeForce GTX 780M will be the best choice, for others Radeon HD 6990M will be their preference. Study the comparison tables below and make your choice.

GeForce GTX 780M and Radeon HD 6990M are Laptop Graphics Cards

Note: GeForce GTX 780M and Radeon HD 6990M 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 780M or Radeon HD 6990M here:

Main Specs

  GeForce GTX 780M Radeon HD 6990M
Power consumption (TDP) 122 Watt 100 Watt
Interface MXM-B (3.0) MXM-B (3.0)
Supplementary power connectors None None
Memory type GDDR5 GDDR5
Maximum RAM amount 4 GB 2 GB
Display Connectors No outputs No outputs
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  • GeForce GTX 780M has 22% more power consumption, than Radeon HD 6990M.
  • Both video cards are using MXM-B (3.0) interface connection to a motherboard.
  • GeForce GTX 780M has 2 GB more memory, than Radeon HD 6990M.
  • Both cards are used in Laptops.
  • GeForce GTX 780M is build with Kepler architecture, and Radeon HD 6990M - with Terascale 2.
  • Core clock speed of GeForce GTX 780M is 108 MHz higher, than Radeon HD 6990M.
  • GeForce GTX 780M is manufactured by 28 nm process technology, and Radeon HD 6990M - by 40 nm process technology.
  • Memory clock speed of GeForce GTX 780M is 1600 MHz higher, than Radeon HD 6990M.

Game benchmarks

high / 1080p 20−22 14−16
ultra / 1080p 12−14 8−9
QHD / 1440p 6−7 3−4
4K / 2160p 5−6
low / 720p 40−45 30−33
medium / 1080p 24−27 16−18
The average gaming FPS of GeForce GTX 780M in Assassin's Creed Odyssey is 40% more, than Radeon HD 6990M.

Full Specs

  GeForce GTX 780M Radeon HD 6990M
Architecture Kepler Terascale 2
Code name N14E-GTX Blackcomb XTX
Type Laptop Laptop
Release date 30 May 2013 12 July 2011
Pipelines 1536 1120
Core clock speed 823 MHz 715 MHz
Boost Clock 797 MHz
Transistor count 3,540 million 1,700 million
Manufacturing process technology 28 nm 40 nm
Texture fill rate 102.0 40.04
Floating-point performance 2,448 gflops 1,601.6 gflops
Memory bus width 256 Bit 256 Bit
Memory clock speed 2500 MHz 900 MHz
Memory bandwidth 160.0 GB/s 115.2 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 +
CUDA cores 1536
Bus support PCI Express 3.0, PCI Express 2.0
SLI options +
HDMI +
Bitcoin / BTC (SHA256) 82 Mh/s
Laptop size large large
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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