Radeon 520 vs Radeon HD 7970M Crossfire

If you are going to buy a new graphics card and are choosing between Radeon 520 and Radeon HD 7970M Crossfire, 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 520 stacks up against Radeon HD 7970M Crossfire, check out specs charts below.

Radeon 520 and Radeon HD 7970M Crossfire are Laptop Graphics Cards

Note: Radeon 520 and Radeon HD 7970M Crossfire 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 520 or Radeon HD 7970M Crossfire here:

Main Specs

  Radeon 520 Radeon HD 7970M Crossfire
Power consumption (TDP) 50 Watt 200 Watt
Interface PCIe 3.0 x8
Supplementary power connectors None
Memory type DDR3, GDDR5 GDDR5
Maximum RAM amount 2 GB
Display Connectors 1x DVI, 1x HDMI, 1x VGA
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  • Radeon HD 7970M Crossfire has 300% more power consumption, than Radeon 520.
  • Both cards are used in Laptops.
  • Radeon 520 is build with GCN 1.0 architecture, and Radeon HD 7970M Crossfire - with GCN.
  • Core clock speed of Radeon 520 is 180 MHz higher, than Radeon HD 7970M Crossfire.
  • Radeon 520 and Radeon HD 7970M Crossfire are manufactured by 28 nm process technology.
  • Memory clock speed of Radeon HD 7970M Crossfire is 2550 MHz higher, than Radeon 520.

Game benchmarks

high / 1080p 0−1 35−40
ultra / 1080p 21−24
QHD / 1440p 0−1 16−18
4K / 2160p 10−11
low / 720p 1−2 60−65
medium / 1080p 0−1 40−45
The average gaming FPS of Radeon HD 7970M Crossfire in Assassin's Creed Odyssey is 6100% more, than Radeon 520.

Full Specs

  Radeon 520 Radeon HD 7970M Crossfire
Architecture GCN 1.0 GCN
Code name Oland Wimbledon XT
Type Laptop Laptop
Release date 21 March 2017 1 May 2012
Pipelines 320 2560
Core clock speed 1030 MHz 850 MHz
Transistor count 1,040 million
Manufacturing process technology 28 nm 28 nm
Texture fill rate 20.60
Floating-point performance 659.2 gflops
Memory bus width 64 Bit 2x 256 Bit
Memory clock speed 2250 MHz 4800 MHz
Memory bandwidth 16 GB/s
Shared memory - -
DirectX 12.0 DirectX 11.1, Shader 5.0
Shader Model 5.0
OpenGL 4.6
OpenCL 1.2
Vulkan +
Laptop size large
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