NVIDIA GeForce GTX 660 vs NVIDIA GeForce GTX 880M

Graphics Processor

GPU model GK106 GK104
GPU variant GK106-400-A1 N15E-GX-A2
Architecture Kepler Kepler
Foundry TSMC TSMC
Manufacturing process 28 nm 28 nm
Number of transistors 2,540 million 3,540 million
Die size 221 mm² 294 mm²

Graphics Card

Release date Sep 6th, 2012
Generation GeForce 600
Production End-of-life
Launch price 229 USD
Interface PCIe 3.0 x16
Reviews 77 in our database
Predecessor GeForce 500
Successor GeForce 700

Clocks

Base clock 980 MHz 954 MHz
Boost clock 1032 MHz 993 MHz
Memory clock 1502 MHz 6 Gbps effective 1250 MHz 5 Gbps effective

Memory Configuration

Memory size 2 GB 8 GB
Memory type GDDR5 GDDR5
Memory bus width 192 bit 256 bit
Bandwidth 144.2 GB/s 160.0 GB/s

Render Configuration

Shading units 960 1536
TMUs 80 128
ROPs 24 32
SMX count 5 8
Cache L1 16 KB (per SMX) 16 KB (per SMX)
Cache L2 384 KB 512 KB

Performance

Pixel rate 20.64 GPixel/s 31.78 GPixel/s
Texture rate 82.56 GTexel/s 127.1 GTexel/s
FP32 (float) performance 1.981 TFLOPS 3.050 TFLOPS
FP64 (double) performance 82.56 GFLOPS (1:24) 127.1 GFLOPS (1:24)

Dimensions & Outputs

Slot width Dual-slot MXM Module
Length 241 mm 9.5 inches
TDP 140 W 122 W
Suggested PSU 300 W
Outputs 2x DVI1x HDMI1x DisplayPort No outputs
Power connectors 1x 6-pin None
Board number P2030 P2053 SKU 2

API Support & Features

DirectX 12 (11_0) 12 (11_0)
OpenGL 4.6 4.6
OpenCL 3.0 3.0
Vulkan 1.1 1.1
CUDA 3.0 3.0
Shader model 5.1 5.1

Other Features

Mobile graphics

Release date Mar 12th, 2014
Generation GeForce 800M
Production End-of-life
Interface MXM-B (3.0)
Reviews 1 in our database
Predecessor GeForce 700M
Successor GeForce 900M

Compare

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