GeForce GTX 660 vs UHD Graphics 615

If you are going to buy a new graphics card and are choosing between GeForce GTX 660 and UHD Graphics 615, 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 UHD Graphics 615, check out specs charts below.

UHD Graphics 615 is a Laptop Graphics Card

Note: UHD Graphics 615 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 UHD Graphics 615 here:

Main Specs

  GeForce GTX 660 UHD Graphics 615
Power consumption (TDP) 140 Watt 15 Watt
Interface PCIe 3.0 x16 PCIe 3.0 x1
Supplementary power connectors One 6-pin
Memory type GDDR5 DDR3L/LPDDR3
Maximum RAM amount 2 GB
Display Connectors 2x DVI, 1x HDMI, 1x DisplayPort No outputs
  Check Price Check Price
  • GeForce GTX 660 has 833% more power consumption, than UHD Graphics 615.
  • GeForce GTX 660 is connected by PCIe 3.0 x16, and UHD Graphics 615 uses PCIe 3.0 x1 interface.
  • GeForce GTX 660 is used in Desktops, and UHD Graphics 615 - in Laptops.
  • GeForce GTX 660 is build with Kepler architecture, and UHD Graphics 615 - with Gen. 9 Amber Lake.
  • Core clock speed of GeForce GTX 660 is 680 MHz higher, than UHD Graphics 615.
  • GeForce GTX 660 is manufactured by 28 nm process technology, and UHD Graphics 615 - by 14 nm process technology.

Game benchmarks

high / 1080p 20−22 0−1
ultra / 1080p 12−14 0−1
QHD / 1440p 6−7 0−1
4K / 2160p 5−6
low / 720p 40−45 10−11
medium / 1080p 24−27 1−2
The average gaming FPS of GeForce GTX 660 in Assassin's Creed Odyssey is 466% more, than UHD Graphics 615.

Full Specs

  GeForce GTX 660 UHD Graphics 615
Architecture Kepler Gen. 9 Amber Lake
Code name GK106 Kaby-Lake GT2
Type Desktop Laptop
Release date 6 September 2012 30 August 2018
Pipelines 960 24
Core clock speed 980 MHz 300 MHz
Boost Clock 1033 MHz 1000 MHz
Transistor count 2,540 million
Manufacturing process technology 28 nm 14 nm
Texture fill rate 78.4 billion/sec 25.20
Floating-point performance 1,981 gflops
Length 9.5" (24.1 cm)
Memory bus width 192-bit GDDR5 64/128 Bit
Memory clock speed 6.0 GB/s
Memory bandwidth 144.2 GB/s
Shared memory +
DirectX 12 (11_0) 12 (12_1)
Shader Model 5.1 6.4
OpenGL 4.3 4.6
OpenCL 1.2 2.1
Vulkan 1.1.126 1.1.103
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
Quick Sync +
  Check Price Check Price