GeForce GTX 675M vs Radeon HD 7770M

When comparing GeForce GTX 675M and Radeon HD 7770M, we look primarily at benchmarks and game tests. But it is not only about the numbers. Often you can find third-party models with higher clock speeds, better cooling, or a customizable RGB lighting. Not all of them will have all the features you need. Another thing to consider is the port selection. Most graphics cards have at least one DisplayPort and HDMI interface, but some monitors require DVI. Before you buy, check the TDP of the graphics card - this characteristic will help you estimate the consumption of the graphics card. You may even have to upgrade your PSU to meet its requirements. An important factor when choosing between GeForce GTX 675M and Radeon HD 7770M is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.

GeForce GTX 675M and Radeon HD 7770M are Laptop Graphics Cards

Note: GeForce GTX 675M and Radeon HD 7770M 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 7770M here:

Main Specs

  GeForce GTX 675M Radeon HD 7770M
Power consumption (TDP) 100 Watt 32 Watt
Interface MXM-B (3.0) PCIe 2.0 x16
Memory type GDDR5 GDDR5
Maximum RAM amount 2 GB 1 GB
Display Connectors No outputs No outputs
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  • GeForce GTX 675M has 212% more power consumption, than Radeon HD 7770M.
  • GeForce GTX 675M is connected by MXM-B (3.0), and Radeon HD 7770M uses PCIe 2.0 x16 interface.
  • GeForce GTX 675M has 1 GB more memory, than Radeon HD 7770M.
  • Both cards are used in Laptops.
  • GeForce GTX 675M is build with Fermi architecture, and Radeon HD 7770M - with GCN.
  • Core clock speed of Radeon HD 7770M is 55 MHz higher, than GeForce GTX 675M.
  • GeForce GTX 675M is manufactured by 40 nm process technology, and Radeon HD 7770M - by 28 nm process technology.
  • Memory clock speed of Radeon HD 7770M is 2500 MHz higher, than GeForce GTX 675M.

Game benchmarks

high / 1080p 10−11 9−10
ultra / 1080p 6−7 5−6
QHD / 1440p 0−1 0−1
low / 720p 21−24 21−24
medium / 1080p 12−14 10−12
The average gaming FPS of GeForce GTX 675M in Assassin's Creed Odyssey is 8% more, than Radeon HD 7770M.

Full Specs

  GeForce GTX 675M Radeon HD 7770M
Architecture Fermi GCN
Code name N13E-GS1 Chelsea XT
Type Laptop Laptop
Release date 22 March 2012 24 April 2012
Pipelines 384 512
Core clock speed 620 MHz 675 MHz
Transistor count 1,950 million 1,500 million
Manufacturing process technology 40 nm 28 nm
Texture fill rate 39.7 billion/sec 21.60
Floating-point performance 952.3 gflops 691.2 gflops
Memory bus width 256bit 128 Bit
Memory clock speed 1500 MHz 4000 MHz
Memory bandwidth 96.0 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 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
Laptop size large medium sized
Optimus +
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