GeForce GTX 660 vs Radeon Pro 5300M

If you are going to buy a new graphics card and are choosing between GeForce GTX 660 and Radeon Pro 5300M, 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 660 stacks up against Radeon Pro 5300M, check out specs charts below.

Radeon Pro 5300M is a Laptop Graphics Card

Note: Radeon Pro 5300M is only used in laptop graphics. It has 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 Pro 5300M here:

Main Specs

  GeForce GTX 660 Radeon Pro 5300M
Power consumption (TDP) 140 Watt 85 Watt
Interface PCIe 3.0 x16 PCIe 4.0 x8
Supplementary power connectors One 6-pin None
Memory type GDDR5 GDDR6
Maximum RAM amount 2 GB 4 GB
Display Connectors 2x DVI, 1x HDMI, 1x DisplayPort No outputs
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  • GeForce GTX 660 has 64% more power consumption, than Radeon Pro 5300M.
  • GeForce GTX 660 is connected by PCIe 3.0 x16, and Radeon Pro 5300M uses PCIe 4.0 x8 interface.
  • Radeon Pro 5300M has 2 GB more memory, than GeForce GTX 660.
  • GeForce GTX 660 is used in Desktops, and Radeon Pro 5300M - in Mobile workstations.
  • GeForce GTX 660 is build with Kepler architecture, and Radeon Pro 5300M - with Navi / RDNA.
  • GeForce GTX 660 is manufactured by 28 nm process technology, and Radeon Pro 5300M - by 7 nm process technology.
  • Memory clock speed of Radeon Pro 5300M is 11994 MHz higher, than GeForce GTX 660.

Game benchmarks

high / 1080p 20−22 35−40
ultra / 1080p 12−14 21−24
QHD / 1440p 6−7 16−18
4K / 2160p 5−6 10−11
low / 720p 40−45 60−65
medium / 1080p 24−27 40−45
The average gaming FPS of Radeon Pro 5300M in Assassin's Creed Odyssey is 68% more, than GeForce GTX 660.

Full Specs

  GeForce GTX 660 Radeon Pro 5300M
Architecture Kepler Navi / RDNA
Code name GK106 Navi 14
Type Desktop Mobile workstation
Release date 6 September 2012 13 November 2019
Pipelines 960 1280
Core clock speed 980 MHz
Boost Clock 1033 MHz 1250 MHz
Transistor count 2,540 million 6,400 million
Manufacturing process technology 28 nm 7 nm
Texture fill rate 78.4 billion/sec 100.0
Floating-point performance 1,981 gflops
Length 9.5" (24.1 cm)
Memory bus width 192-bit GDDR5 128 Bit
Memory clock speed 6.0 GB/s 12000 MHz
Memory bandwidth 144.2 GB/s 192.0 GB/s
Shared memory -
DirectX 12 (11_0) 12 (12_1)
Shader Model 5.1 6.5
OpenGL 4.3 4.6
OpenCL 1.2 2.0
Vulkan 1.1.126 1.2.131
CUDA +
CUDA cores 960
Bus support PCI Express 3.0
Height 4.376" (11.1 cm)
SLI options +
Multi monitor support 4 displays
HDMI +
HDCP +
Maximum VGA resolution 2048x1536
Audio input for HDMI Internal
3D Blu-Ray +
3D Gaming +
3D Vision +
Bitcoin / BTC (SHA256) 66 Mh/s
Laptop size medium sized
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