GeForce 825M vs Radeon HD 6870

Find out if it is worth upgrading your current GPU setup by comparing GeForce 825M and Radeon HD 6870. 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 6870. 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 6870
Power consumption (TDP) 33 Watt 151 Watt
Interface PCIe 3.0 x8 PCIe 2.0 x16
Supplementary power connectors None 2x 6-pin
Memory type DDR3 GDDR5
Maximum RAM amount 2 GB 1 GB
Display Connectors No outputs 2x DVI, 1x HDMI, 2x mini-DisplayPort
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  • Radeon HD 6870 has 357% more power consumption, than GeForce 825M.
  • GeForce 825M is connected by PCIe 3.0 x8, and Radeon HD 6870 uses PCIe 2.0 x16 interface.
  • GeForce 825M has 1 GB more memory, than Radeon HD 6870.
  • GeForce 825M is used in Laptops, and Radeon HD 6870 - in Desktops.
  • GeForce 825M is build with Kepler architecture, and Radeon HD 6870 - with Terascale 2.
  • GeForce 825M is manufactured by 28 nm process technology, and Radeon HD 6870 - by 40 nm process technology.
  • Memory clock speed of GeForce 825M is 750 MHz higher, than Radeon HD 6870.

Game benchmarks

high / 1080p 0−1 10−12
ultra / 1080p 6−7
QHD / 1440p 0−1 1−2
low / 720p 2−3 24−27
medium / 1080p 0−1 12−14
The average gaming FPS of Radeon HD 6870 in Assassin's Creed Odyssey is 1150% more, than GeForce 825M.

Full Specs

  GeForce 825M Radeon HD 6870
Architecture Kepler Terascale 2
Code name GK208 RV940 Barts
Type Laptop Desktop
Release date 27 January 2014 22 October 2010
Pipelines 384 1120
Core clock speed 850 MHz
Boost Clock 941 MHz 900 MHz
Transistor count 915 million 1,700 million
Manufacturing process technology 28 nm 40 nm
Texture fill rate 30.11 50.40
Floating-point performance 722.7 gflops 2,016.0 gflops
Length 220 mm
Memory bus width 64 Bit 256 Bit
Memory clock speed 1800 MHz 1050 MHz
Memory bandwidth 14.4 GB/s 134.4 GB/s
Shared memory - -
DirectX 12 (11_0)
Shader Model 5.1 5.0
OpenGL 4.6 4.4
OpenCL 1.2 1.2
Vulkan 1.1.126
CUDA +
Bus support PCIe 2.0 x16
HDMI +
Bitcoin / BTC (SHA256) 213 Mh/s
Laptop size medium sized
Optimus +
Eyefinity +
Design reference
CrossFire +
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