GeForce GTX 660 Ti vs Radeon 520

Find out if it is worth upgrading your current GPU setup by comparing GeForce GTX 660 Ti and Radeon 520. Here you can take a closer look at graphics cards specs, such as core clock speed, memory type and size, display connectors, etc. The price, overall benchmark and gaming performances are usually defining factors when it comes to choosing between GeForce GTX 660 Ti and Radeon 520. Make sure that the graphics card has compatible dimensions and will properly fit in your new or current computer case. Also these graphics cards may have different system power recommendations, so take that into consideration and upgrade your PSU if necessary.

Radeon 520 is a Laptop Graphics Card

Note: Radeon 520 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 520 here:

Main Specs

  GeForce GTX 660 Ti Radeon 520
Power consumption (TDP) 150 Watt 50 Watt
Interface PCIe 3.0 x16 PCIe 3.0 x8
Supplementary power connectors Two 6-pin None
Memory type GDDR5 DDR3, GDDR5
Maximum RAM amount 2 GB 2 GB
Display Connectors 2x DVI, 1x HDMI, 1x DisplayPort 1x DVI, 1x HDMI, 1x VGA
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  • GeForce GTX 660 Ti has 200% more power consumption, than Radeon 520.
  • GeForce GTX 660 Ti is connected by PCIe 3.0 x16, and Radeon 520 uses PCIe 3.0 x8 interface.
  • GeForce GTX 660 Ti and Radeon 520 have maximum RAM of 2 GB.
  • GeForce GTX 660 Ti is used in Desktops, and Radeon 520 - in Laptops.
  • GeForce GTX 660 Ti is build with Kepler architecture, and Radeon 520 - with GCN 1.0.
  • Core clock speed of Radeon 520 is 115 MHz higher, than GeForce GTX 660 Ti.
  • GeForce GTX 660 Ti and Radeon 520 are manufactured by 28 nm process technology.
  • Memory clock speed of Radeon 520 is 2244 MHz higher, than GeForce GTX 660 Ti.

Game benchmarks

high / 1080p 21−24 0−1
ultra / 1080p 12−14
QHD / 1440p 8−9 0−1
4K / 2160p 5−6
low / 720p 40−45 1−2
medium / 1080p 27−30 0−1
The average gaming FPS of GeForce GTX 660 Ti in Assassin's Creed Odyssey is 4100% more, than Radeon 520.

Full Specs

  GeForce GTX 660 Ti Radeon 520
Architecture Kepler GCN 1.0
Code name GK104 Oland
Type Desktop Laptop
Release date 16 August 2012 21 March 2017
Pipelines 1344 320
Core clock speed 915 MHz 1030 MHz
Boost Clock 980 MHz
Transistor count 3,540 million 1,040 million
Manufacturing process technology 28 nm 28 nm
Texture fill rate 102.5 billion/sec 20.60
Floating-point performance 2,459.5 gflops 659.2 gflops
Length 9.5" (24.1 cm)
Memory bus width 192-bit GDDR5 64 Bit
Memory clock speed 6.0 GB/s 2250 MHz
Memory bandwidth 144.2 GB/s 16 GB/s
Shared memory - -
DirectX 12 (11_0) 12.0
Shader Model 5.1 5.0
OpenGL 4.3 4.6
OpenCL 1.2 1.2
Vulkan 1.1.126 +
CUDA +
CUDA cores 1344
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) 99 Mh/s
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