GeForce GTX 675M vs Radeon HD 8870M

If you are going to buy a new graphics card and are choosing between GeForce GTX 675M and Radeon HD 8870M, there are a couple of things to consider. Cards with more VRAM in general perform better and allow you to play on higher graphics settings. Size also makes a difference. A model with a large heatsink can occupy up to three expansion slots on a motherboard. Be sure you have enough room in your PC case. When comparing GPUs with different architectures, more processing cores and even higher TFLOPS will not always translate to better performance. To help you decide which GPU you need, we have measured frame rates in a number of popular games. For more on how the GeForce GTX 675M stacks up against Radeon HD 8870M, check out specs charts below.

GeForce GTX 675M and Radeon HD 8870M are Laptop Graphics Cards

Note: GeForce GTX 675M and Radeon HD 8870M 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 675M or Radeon HD 8870M here:

Main Specs

  GeForce GTX 675M Radeon HD 8870M
Power consumption (TDP) 100 Watt
Interface MXM-B (3.0) PCIe 3.0 x16
Memory type GDDR5 GDDR5, DDR3
Maximum RAM amount 2 GB 2 GB
Display Connectors No outputs No outputs
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  • GeForce GTX 675M is connected by MXM-B (3.0), and Radeon HD 8870M uses PCIe 3.0 x16 interface.
  • GeForce GTX 675M and Radeon HD 8870M have maximum RAM of 2 GB.
  • Both cards are used in Laptops.
  • GeForce GTX 675M is build with Fermi architecture, and Radeon HD 8870M - with GCN.
  • Core clock speed of Radeon HD 8870M is 105 MHz higher, than GeForce GTX 675M.
  • GeForce GTX 675M is manufactured by 40 nm process technology, and Radeon HD 8870M - by 28 nm process technology.
  • Memory clock speed of Radeon HD 8870M is 3000 MHz higher, than GeForce GTX 675M.

Game benchmarks

high / 1080p 10−11 7−8
ultra / 1080p 6−7 4−5
QHD / 1440p 0−1 0−1
low / 720p 21−24 18−20
medium / 1080p 12−14 9−10
The average gaming FPS of GeForce GTX 675M in Assassin's Creed Odyssey is 30% more, than Radeon HD 8870M.

Full Specs

  GeForce GTX 675M Radeon HD 8870M
Architecture Fermi GCN
Code name N13E-GS1 Venus
Type Laptop Laptop
Release date 22 March 2012 18 December 2012
Pipelines 384 640
Core clock speed 620 MHz 725 MHz
Boost Clock 775 MHz
Transistor count 1,950 million 1,500 million
Manufacturing process technology 40 nm 28 nm
Texture fill rate 39.7 billion/sec 31.00
Floating-point performance 952.3 gflops 992.0 gflops
Memory bus width 256bit 128 Bit
Memory clock speed 1500 MHz 4500 MHz
Memory bandwidth 96.0 GB/s 72 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 N/A 1.2.131
CUDA +
CUDA cores 384
Bus support PCI Express 2.0
SLI options +
HDMI +
HDCP +
Maximum VGA resolution Up to 2048x1536
Bitcoin / BTC (SHA256) 59 Mh/s 107 Mh/s
Laptop size large large
Optimus +
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