GeForce GTX 780M vs Radeon HD 6990

Find out if it is worth upgrading your current GPU setup by comparing GeForce GTX 780M and Radeon HD 6990. Here you can take a closer look at graphics cards specs, such as core clock speed, memory type and size, display connectors, etc. The price, overall benchmark and gaming performances are usually defining factors when it comes to choosing between GeForce GTX 780M and Radeon HD 6990. Make sure that the graphics card has compatible dimensions and will properly fit in your new or current computer case. Also these graphics cards may have different system power recommendations, so take that into consideration and upgrade your PSU if necessary.

GeForce GTX 780M is a Laptop Graphics Card

Note: GeForce GTX 780M 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 GTX 780M here:

Main Specs

  GeForce GTX 780M Radeon HD 6990
Power consumption (TDP) 122 Watt 375 Watt
Interface MXM-B (3.0) PCIe 2.0 x16
Supplementary power connectors None 2x 8-pin
Memory type GDDR5 GDDR5
Maximum RAM amount 4 GB 2 GB
Display Connectors No outputs 1x DVI, 4x mini-DisplayPort
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  • Radeon HD 6990 has 207% more power consumption, than GeForce GTX 780M.
  • GeForce GTX 780M is connected by MXM-B (3.0), and Radeon HD 6990 uses PCIe 2.0 x16 interface.
  • GeForce GTX 780M has 2 GB more memory, than Radeon HD 6990.
  • GeForce GTX 780M is used in Laptops, and Radeon HD 6990 - in Desktops.
  • GeForce GTX 780M is build with Kepler architecture, and Radeon HD 6990 - with TeraScale 3.
  • Core clock speed of Radeon HD 6990 is 7 MHz higher, than GeForce GTX 780M.
  • GeForce GTX 780M is manufactured by 28 nm process technology, and Radeon HD 6990 - by 40 nm process technology.
  • Memory clock speed of Radeon HD 6990 is 2500 MHz higher, than GeForce GTX 780M.

Game benchmarks

high / 1080p 20−22 14−16
ultra / 1080p 12−14 9−10
QHD / 1440p 6−7 3−4
4K / 2160p 5−6
low / 720p 40−45 30−35
medium / 1080p 24−27 18−20
The average gaming FPS of GeForce GTX 780M in Assassin's Creed Odyssey is 40% more, than Radeon HD 6990.

Full Specs

  GeForce GTX 780M Radeon HD 6990
Architecture Kepler TeraScale 3
Code name N14E-GTX Antilles
Type Laptop Desktop
Release date 30 May 2013 8 March 2011
Pipelines 1536 1536
Core clock speed 823 MHz 830 MHz
Boost Clock 797 MHz
Transistor count 3,540 million 2,640 million
Manufacturing process technology 28 nm 40 nm
Texture fill rate 102.0 79.68
Floating-point performance 2,448 gflops 2x 2,549.8 gflops
Length 295 mm
Memory bus width 256 Bit 256 Bit
Memory clock speed 2500 MHz 5000 MHz
Memory bandwidth 160.0 GB/s 160.0 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 265 Mh/s
Laptop size 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 +
Ethereum / ETH (DaggerHashimoto) 24 Mh/s
Blu-Ray 3D Support +
3D Vision / 3DTV Play +
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