GeForce GTX 660 Ti vs Radeon R9 380X

When choosing between GeForce GTX 660 Ti and Radeon R9 380X, it is worth examining the specifications of the models in detail. Do they meet the recommended requirements of modern games and software? Storage capacity, form factor, TDP, available ports, warranty and manufacturer support are all important. For example, the size of a PC case can limit the maximum thickness and length of the card. Often, instead of the factory overclocked card and RGB backlight, it is better to choose a reference model with a more efficient GPU. And make sure that your current power supply unit has the correct connection pins (using adapters is not recommended). This GPUs compare tool is meant to help you to choose the best graphics card for your build. Let's find out the difference between GeForce GTX 660 Ti and Radeon R9 380X.

Main Specs

  GeForce GTX 660 Ti Radeon R9 380X
Power consumption (TDP) 150 Watt 190 Watt
Interface PCIe 3.0 x16 PCIe 3.0 x16
Supplementary power connectors Two 6-pin
Memory type GDDR5 GDDR5
Maximum RAM amount 2 GB 4 GB
Display Connectors 2x DVI, 1x HDMI, 1x DisplayPort 2x DVI, 1x HDMI, 1x DisplayPort
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  • Radeon R9 380X has 26% more power consumption, than GeForce GTX 660 Ti.
  • Both video cards are using PCIe 3.0 x16 interface connection to a motherboard.
  • Radeon R9 380X has 2 GB more memory, than GeForce GTX 660 Ti.
  • Both cards are used in Desktops.
  • GeForce GTX 660 Ti is build with Kepler architecture, and Radeon R9 380X - with GCN 3.0.
  • GeForce GTX 660 Ti and Radeon R9 380X are manufactured by 28 nm process technology.
  • Radeon R9 380X is 212 mm longer, than GeForce GTX 660 Ti.
  • Memory clock speed of Radeon R9 380X is 964 MHz higher, than GeForce GTX 660 Ti.

Game benchmarks

high / 1080p 21−24 35−40
ultra / 1080p 12−14 21−24
QHD / 1440p 8−9 16−18
4K / 2160p 5−6 10−11
low / 720p 40−45 60−65
medium / 1080p 27−30 40−45
The average gaming FPS of Radeon R9 380X in Assassin's Creed Odyssey is 60% more, than GeForce GTX 660 Ti.

Full Specs

  GeForce GTX 660 Ti Radeon R9 380X
Architecture Kepler GCN 3.0
Code name GK104 Antigua
Type Desktop Desktop
Release date 16 August 2012 19 November 2015
Pipelines 1344 2048
Core clock speed 915 MHz
Boost Clock 980 MHz 970 MHz
Transistor count 3,540 million 5,000 million
Manufacturing process technology 28 nm 28 nm
Texture fill rate 102.5 billion/sec 124.2
Floating-point performance 2,459.5 gflops 3,973 gflops
Length 9.5" (24.1 cm) 221 mm
Memory bus width 192-bit GDDR5 256 Bit
Memory clock speed 6.0 GB/s 970 MHz
Memory bandwidth 144.2 GB/s 182.4 GB/s
Shared memory -
DirectX 12 (11_0)
Shader Model 5.1 6.3
OpenGL 4.3 4.5
OpenCL 1.2 2.0
Vulkan 1.1.126 +
CUDA +
Monero / XMR (CryptoNight) 0.58 kh/s
FreeSync +
CUDA cores 1344
Bus support PCI Express 3.0 PCIe 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
Eyefinity +
HD3D +
PowerTune +
TrueAudio +
ZeroCore +
Mantle +
Design reference
Bridgeless CrossFire +
Number of Eyefinity displays 6
DisplayPort support +
CrossFire +
VCE +
DDMA audio +
Decred / DCR (Decred) 0.89 Gh/s
Ethereum / ETH (DaggerHashimoto) 20.63 Mh/s
Zcash / ZEC (Equihash) 175 Sol/s
Compute units 32
Form factor full height / full length
High bandwidth memory (HBM) -
LiquidVR +
FRTC +
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