GeForce 825M vs Radeon HD 7990

Find out if it is worth upgrading your current GPU setup by comparing GeForce 825M and Radeon HD 7990. 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 825M and Radeon HD 7990. 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 825M is a Laptop Graphics Card

Note: GeForce 825M 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 825M here:

Main Specs

  GeForce 825M Radeon HD 7990
Power consumption (TDP) 33 Watt 375 Watt
Interface PCIe 3.0 x8 PCIe 3.0 x16
Supplementary power connectors None 2x 8-pin
Memory type DDR3 GDDR5
Maximum RAM amount 2 GB 3 GB
Display Connectors No outputs 1x DVI, 4x mini-DisplayPort
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  • Radeon HD 7990 has 1036% more power consumption, than GeForce 825M.
  • GeForce 825M is connected by PCIe 3.0 x8, and Radeon HD 7990 uses PCIe 3.0 x16 interface.
  • Radeon HD 7990 has 1 GB more memory, than GeForce 825M.
  • GeForce 825M is used in Laptops, and Radeon HD 7990 - in Desktops.
  • GeForce 825M is build with Kepler architecture, and Radeon HD 7990 - with GCN 1.0.
  • Core clock speed of Radeon HD 7990 is 100 MHz higher, than GeForce 825M.
  • GeForce 825M and Radeon HD 7990 are manufactured by 28 nm process technology.
  • Memory clock speed of Radeon HD 7990 is 4200 MHz higher, than GeForce 825M.

Game benchmarks

high / 1080p 0−1 35−40
ultra / 1080p 21−24
QHD / 1440p 0−1 16−18
4K / 2160p 10−11
low / 720p 2−3 60−65
medium / 1080p 0−1 40−45
The average gaming FPS of Radeon HD 7990 in Assassin's Creed Odyssey is 3000% more, than GeForce 825M.

Full Specs

  GeForce 825M Radeon HD 7990
Architecture Kepler GCN 1.0
Code name GK208 Malta
Type Laptop Desktop
Release date 27 January 2014 24 April 2013
Pipelines 384 2048
Core clock speed 850 MHz 950 MHz
Boost Clock 941 MHz 1000 MHz
Transistor count 915 million 4,313 million
Manufacturing process technology 28 nm 28 nm
Texture fill rate 30.11 128.0
Floating-point performance 722.7 gflops 2x 4,096 gflops
Length 307 mm
Memory bus width 64 Bit 384 Bit
Memory clock speed 1800 MHz 6000 MHz
Memory bandwidth 14.4 GB/s 288.0 GB/s
Shared memory -
DirectX 12 (11_0) 12 (11_1)
Shader Model 5.1 5.1
OpenGL 4.6 4.6
OpenCL 1.2 1.2
Vulkan 1.1.126 1.2.131
CUDA +
Bitcoin / BTC (SHA256) 459 Mh/s
Laptop size medium sized
Optimus +
Ethereum / ETH (DaggerHashimoto) 44 Mh/s
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