GeForce 825M vs Radeon HD 6990

Find out if it is worth upgrading your current GPU setup by comparing GeForce 825M 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 825M 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 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 6990
Power consumption (TDP) 33 Watt 375 Watt
Interface PCIe 3.0 x8 PCIe 2.0 x16
Supplementary power connectors None 2x 8-pin
Memory type DDR3 GDDR5
Maximum RAM amount 2 GB 2 GB
Display Connectors No outputs 1x DVI, 4x mini-DisplayPort
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  • Radeon HD 6990 has 1036% more power consumption, than GeForce 825M.
  • GeForce 825M is connected by PCIe 3.0 x8, and Radeon HD 6990 uses PCIe 2.0 x16 interface.
  • GeForce 825M and Radeon HD 6990 have maximum RAM of 2 GB.
  • GeForce 825M is used in Laptops, and Radeon HD 6990 - in Desktops.
  • GeForce 825M is build with Kepler architecture, and Radeon HD 6990 - with TeraScale 3.
  • Core clock speed of GeForce 825M is 20 MHz higher, than Radeon HD 6990.
  • GeForce 825M is manufactured by 28 nm process technology, and Radeon HD 6990 - by 40 nm process technology.
  • Memory clock speed of Radeon HD 6990 is 3200 MHz higher, than GeForce 825M.

Game benchmarks

high / 1080p 0−1 14−16
ultra / 1080p 9−10
QHD / 1440p 0−1 3−4
low / 720p 2−3 30−35
medium / 1080p 0−1 18−20
The average gaming FPS of Radeon HD 6990 in Assassin's Creed Odyssey is 1500% more, than GeForce 825M.

Full Specs

  GeForce 825M Radeon HD 6990
Architecture Kepler TeraScale 3
Code name GK208 Antilles
Type Laptop Desktop
Release date 27 January 2014 8 March 2011
Pipelines 384 1536
Core clock speed 850 MHz 830 MHz
Boost Clock 941 MHz
Transistor count 915 million 2,640 million
Manufacturing process technology 28 nm 40 nm
Texture fill rate 30.11 79.68
Floating-point performance 722.7 gflops 2x 2,549.8 gflops
Length 295 mm
Memory bus width 64 Bit 256 Bit
Memory clock speed 1800 MHz 5000 MHz
Memory bandwidth 14.4 GB/s 160.0 GB/s
Shared memory -
DirectX 12 (11_0) 11.2 (11_0)
Shader Model 5.1 5.0
OpenGL 4.6 4.4
OpenCL 1.2 1.2
Vulkan 1.1.126 N/A
CUDA +
Bitcoin / BTC (SHA256) 265 Mh/s
Laptop size medium sized
Optimus +
Ethereum / ETH (DaggerHashimoto) 24 Mh/s
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