GeForce GTX 675MX vs Radeon HD 7870M

In this comparison between GeForce GTX 675MX and Radeon HD 7870M 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 675MX will be the best choice, for others Radeon HD 7870M will be their preference. Study the comparison tables below and make your choice.

GeForce GTX 675MX and Radeon HD 7870M are Laptop Graphics Cards

Note: GeForce GTX 675MX and Radeon HD 7870M are only used in laptop graphics. They have 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 675MX or Radeon HD 7870M here:

Main Specs

  GeForce GTX 675MX Radeon HD 7870M
Power consumption (TDP) 100 Watt 45 Watt
Interface MXM-B (3.0) PCIe 3.0 x16
Supplementary power connectors None
Memory type GDDR5 GDDR5
Maximum RAM amount 2 GB 2 GB
Display Connectors No outputs No outputs
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  • GeForce GTX 675MX has 122% more power consumption, than Radeon HD 7870M.
  • GeForce GTX 675MX is connected by MXM-B (3.0), and Radeon HD 7870M uses PCIe 3.0 x16 interface.
  • GeForce GTX 675MX and Radeon HD 7870M have maximum RAM of 2 GB.
  • Both cards are used in Laptops.
  • GeForce GTX 675MX is build with Kepler architecture, and Radeon HD 7870M - with GCN.
  • Core clock speed of Radeon HD 7870M is 200 MHz higher, than GeForce GTX 675MX.
  • GeForce GTX 675MX and Radeon HD 7870M are manufactured by 28 nm process technology.
  • Memory clock speed of Radeon HD 7870M is 2200 MHz higher, than GeForce GTX 675MX.

Game benchmarks

high / 1080p 9−10 6−7
ultra / 1080p 5−6 4−5
QHD / 1440p 0−1 0−1
low / 720p 21−24 16−18
medium / 1080p 12−14 8−9
The average gaming FPS of GeForce GTX 675MX in Assassin's Creed Odyssey is 33% more, than Radeon HD 7870M.

Full Specs

  GeForce GTX 675MX Radeon HD 7870M
Architecture Kepler GCN
Code name N13E-GSR Heathrow XT
Type Laptop Laptop
Release date 1 October 2012 24 April 2012
Pipelines 960 640
Core clock speed 600 MHz 800 MHz
Transistor count 3,540 million 1,500 million
Manufacturing process technology 28 nm 28 nm
Texture fill rate 48.0 billion/sec 32.00
Floating-point performance 1,256 gflops 1,024 gflops
Memory bus width 256 Bit 128 Bit
Memory clock speed 1800 MHz 4000 MHz
Memory bandwidth 115.2 GB/s 64 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 960
Bus support PCI Express 2.0
SLI options +
HDMI +
HDCP +
Maximum VGA resolution Up to 2048x1536
Bitcoin / BTC (SHA256) 63 Mh/s
Laptop size large large
Optimus +
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