Radeon HD 7730M vs Radeon HD 7870M

If you are going to buy a new graphics card and are choosing between Radeon HD 7730M and Radeon HD 7870M, 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 Radeon HD 7730M stacks up against Radeon HD 7870M, check out specs charts below.

Radeon HD 7730M and Radeon HD 7870M are Laptop Graphics Cards

Note: Radeon HD 7730M 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 Radeon HD 7730M or Radeon HD 7870M here:

Main Specs

  Radeon HD 7730M Radeon HD 7870M
Power consumption (TDP) 25 Watt 45 Watt
Interface PCIe 2.0 x16 PCIe 3.0 x16
Memory type DDR3 GDDR5
Maximum RAM amount 2 GB 2 GB
Display Connectors No outputs No outputs
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  • Radeon HD 7870M has 80% more power consumption, than Radeon HD 7730M.
  • Radeon HD 7730M is connected by PCIe 2.0 x16, and Radeon HD 7870M uses PCIe 3.0 x16 interface.
  • Radeon HD 7730M and Radeon HD 7870M have maximum RAM of 2 GB.
  • Both cards are used in Laptops.
  • Radeon HD 7730M and Radeon HD 7870M are build with GCN architecture.
  • Core clock speed of Radeon HD 7870M is 225 MHz higher, than Radeon HD 7730M.
  • Radeon HD 7730M and Radeon HD 7870M are manufactured by 28 nm process technology.
  • Memory clock speed of Radeon HD 7870M is 2200 MHz higher, than Radeon HD 7730M.

Game benchmarks

high / 1080p 0−1 6−7
ultra / 1080p 4−5
QHD / 1440p 0−1 0−1
low / 720p 1−2 16−18
medium / 1080p 0−1 8−9
The average gaming FPS of Radeon HD 7870M in Assassin's Creed Odyssey is 1600% more, than Radeon HD 7730M.

Full Specs

  Radeon HD 7730M Radeon HD 7870M
Architecture GCN GCN
Code name Lombok GL Heathrow XT
Type Laptop Laptop
Release date 24 April 2012 24 April 2012
Pipelines 512 640
Core clock speed 575 MHz 800 MHz
Boost Clock 675 MHz
Transistor count 1,500 million 1,500 million
Manufacturing process technology 28 nm 28 nm
Texture fill rate 21.60 32.00
Floating-point performance 691.2 gflops 1,024 gflops
Memory bus width 128 Bit 128 Bit
Memory clock speed 1800 MHz 4000 MHz
Memory bandwidth 28.8 GB/s 64 GB/s
Shared memory - -
DirectX 12 (11_1) 12 (11_1)
Shader Model 5.1 5.1
OpenGL 4.6 4.6
OpenCL 1.2 1.2
Vulkan 1.2.131 1.2.131
Bitcoin / BTC (SHA256) 70 Mh/s
Laptop size medium sized large
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