GeForce GTX 660 vs Radeon R7 512 Cores Kaveri

Find out if it is worth upgrading your current GPU setup by comparing GeForce GTX 660 and Radeon R7 512 Cores Kaveri. 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 and Radeon R7 512 Cores Kaveri. 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 R7 512 Cores Kaveri

Main Specs

  GeForce GTX 660 Radeon R7 512 Cores Kaveri
Power consumption (TDP) 140 Watt
Interface PCIe 3.0 x16
Supplementary power connectors One 6-pin
Memory type GDDR5
Maximum RAM amount 2 GB
Display Connectors 2x DVI, 1x HDMI, 1x DisplayPort
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  • Both cards are used in Desktops.
  • GeForce GTX 660 is build with Kepler architecture, and Radeon R7 512 Cores Kaveri - with GCN.
  • Core clock speed of GeForce GTX 660 is 260 MHz higher, than Radeon R7 512 Cores Kaveri.
  • GeForce GTX 660 and Radeon R7 512 Cores Kaveri are manufactured by 28 nm process technology.

Game benchmarks

high / 1080p 20−22 7−8
ultra / 1080p 12−14 4−5
QHD / 1440p 6−7 0−1
4K / 2160p 5−6
low / 720p 40−45 18−20
medium / 1080p 24−27 9−10
The average gaming FPS of GeForce GTX 660 in Assassin's Creed Odyssey is 150% more, than Radeon R7 512 Cores Kaveri.

Full Specs

  GeForce GTX 660 Radeon R7 512 Cores Kaveri
Architecture Kepler GCN
Code name GK106 Kaveri Spectre
Type Desktop Desktop
Release date 6 September 2012 14 January 2014
Pipelines 960 512
Core clock speed 980 MHz 720 MHz
Boost Clock 1033 MHz
Transistor count 2,540 million
Manufacturing process technology 28 nm 28 nm
Texture fill rate 78.4 billion/sec
Floating-point performance 1,981 gflops
Length 9.5" (24.1 cm)
Memory bus width 192-bit GDDR5
Memory clock speed 6.0 GB/s
Memory bandwidth 144.2 GB/s
Shared memory +
DirectX 12 (11_0) DirectX 12 (FL 12_0), Shader 5.2
Shader Model 5.1
OpenGL 4.3
OpenCL 1.2
Vulkan 1.1.126
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
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