GeForce GTX 780M vs Radeon HD 7990

In this comparison between GeForce GTX 780M and Radeon HD 7990 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 7990 will be their preference. Study the comparison tables below and make your choice.

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 7990
Power consumption (TDP) 122 Watt 375 Watt
Interface MXM-B (3.0) PCIe 3.0 x16
Supplementary power connectors None 2x 8-pin
Memory type GDDR5 GDDR5
Maximum RAM amount 4 GB 3 GB
Display Connectors No outputs 1x DVI, 4x mini-DisplayPort
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  • Radeon HD 7990 has 207% more power consumption, than GeForce GTX 780M.
  • GeForce GTX 780M is connected by MXM-B (3.0), and Radeon HD 7990 uses PCIe 3.0 x16 interface.
  • GeForce GTX 780M has 1 GB more memory, than Radeon HD 7990.
  • GeForce GTX 780M is used in Laptops, and Radeon HD 7990 - in Desktops.
  • GeForce GTX 780M is build with Kepler architecture, and Radeon HD 7990 - with GCN 1.0.
  • Core clock speed of Radeon HD 7990 is 127 MHz higher, than GeForce GTX 780M.
  • GeForce GTX 780M and Radeon HD 7990 are manufactured by 28 nm process technology.
  • Memory clock speed of Radeon HD 7990 is 3500 MHz higher, than GeForce GTX 780M.

Game benchmarks

high / 1080p 20−22 35−40
ultra / 1080p 12−14 21−24
QHD / 1440p 6−7 16−18
4K / 2160p 5−6 10−11
low / 720p 40−45 60−65
medium / 1080p 24−27 40−45
The average gaming FPS of Radeon HD 7990 in Assassin's Creed Odyssey is 68% more, than GeForce GTX 780M.

Full Specs

  GeForce GTX 780M Radeon HD 7990
Architecture Kepler GCN 1.0
Code name N14E-GTX Malta
Type Laptop Desktop
Release date 30 May 2013 24 April 2013
Pipelines 1536 2048
Core clock speed 823 MHz 950 MHz
Boost Clock 797 MHz 1000 MHz
Transistor count 3,540 million 4,313 million
Manufacturing process technology 28 nm 28 nm
Texture fill rate 102.0 128.0
Floating-point performance 2,448 gflops 2x 4,096 gflops
Length 307 mm
Memory bus width 256 Bit 384 Bit
Memory clock speed 2500 MHz 6000 MHz
Memory bandwidth 160.0 GB/s 288.0 GB/s
Shared memory -
DirectX 12 API 12 (11_1)
Shader Model 5.1 5.1
OpenGL 4.5 4.6
OpenCL 1.1 1.2
Vulkan 1.1.126 1.2.131
CUDA +
CUDA cores 1536
Bus support PCI Express 3.0, PCI Express 2.0
SLI options +
HDMI +
Bitcoin / BTC (SHA256) 82 Mh/s 459 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) 44 Mh/s
Blu-Ray 3D Support +
3D Vision / 3DTV Play +
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