GeForce GTX 970 vs GeForce GTX 660
We compared two Desktop platform GPUs: 4GB VRAM GeForce GTX 970 and 2GB VRAM GeForce GTX 660 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
GeForce GTX 970 Advantages
Released 2 years late
Boost Clock has increased by 14% (1178MHz vs 1032MHz)
More VRAM (4GB vs 2GB)
Larger VRAM bandwidth (224.4GB/s vs 144.2GB/s)
704 additional rendering cores
GeForce GTX 660 Advantages
Lower TDP (140W vs 148W)
Score
Benchmark
FP32 (float)
GeForce GTX 970
+97%
3920
GeForce GTX 660
1981
3DMark Time Spy
GeForce GTX 970
+205%
3646
GeForce GTX 660
1194
3DMark Time Spy Extreme
GeForce GTX 970
+547%
1683
GeForce GTX 660
260
Blender
GeForce GTX 970
+174%
305
GeForce GTX 660
111
OctaneBench
GeForce GTX 970
+185%
77
GeForce GTX 660
27
Graphics Card
Sep 2014
Release Date
Sep 2012
GeForce 900
Generation
GeForce 600
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
1050 MHz
Base Clock
980 MHz
1178 MHz
Boost Clock
1032 MHz
1753 MHz
Memory Clock
1502 MHz
Memory
4GB
Memory Size
2GB
GDDR5
Memory Type
GDDR5
256bit
Memory Bus
192bit
224.4GB/s
Bandwidth
144.2GB/s
Render Config
1664
Shading Units
960
104
TMUs
80
56
ROPs
24
48 KB (per SMM)
L1 Cache
16 KB (per SMX)
2 MB
L2 Cache
384 KB
Theoretical Performance
65.97 GPixel/s
Pixel Rate
20.64 GPixel/s
122.5 GTexel/s
Texture Rate
82.56 GTexel/s
3.920 TFLOPS
FP32 (float)
1.981 TFLOPS
122.5 GFLOPS
FP64 (double)
82.56 GFLOPS
Board Design
148W
TDP
140W
300 W
Suggested PSU
300 W
1x DVI
1x HDMI 2.0
3x DisplayPort 1.4a
1x HDMI 2.0
3x DisplayPort 1.4a
Outputs
2x DVI
1x HDMI 1.4a
1x DisplayPort 1.2
1x HDMI 1.4a
1x DisplayPort 1.2
2x 6-pin
Power Connectors
1x 6-pin
Graphics Processor
GM204
GPU Name
GK106
GM204-200-A1
GPU Variant
GK106-400-A1
Maxwell 2.0
Architecture
Kepler
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
5.2 billion
Transistors
2.54 billion
398 mm²
Die Size
221 mm²
Graphics Features
12 (12_1)
DirectX
12 (11_0)
4.6
OpenGL
4.6
3.0
OpenCL
3.0
1.3
Vulkan
1.1
5.2
CUDA
3.0
6.4
Shader Model
5.1
