GeForce GTX 560 Ti X2 vs GeForce GTX 660 Ti
We compared two Desktop platform GPUs: 1024MB VRAM GeForce GTX 560 Ti X2 and 2GB VRAM GeForce GTX 660 Ti to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
GeForce GTX 660 Ti 's Advantages
Released 1 years and 7 months late
Boost Clock980MHz
More VRAM (2GB vs 1024GB)
Larger VRAM bandwidth (144.2GB/s vs 128.3GB/s)
960 additional rendering cores
Lower TDP (150W vs 170W)
Score
Benchmark
FP32 (float)
GeForce GTX 560 Ti X2
1306
GeForce GTX 660 Ti
+101%
2634
Graphics Card
Jan 2011
Release Date
Aug 2012
GeForce 500
Generation
GeForce 600
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
-
Base Clock
915 MHz
-
Boost Clock
980 MHz
1002 MHz
Memory Clock
1502 MHz
Memory
1024MB
Memory Size
2GB
GDDR5
Memory Type
GDDR5
256bit
Memory Bus
192bit
128.3GB/s
Bandwidth
144.2GB/s
Render Config
8
SM Count
-
384
Shading Units
1344
64
TMUs
112
32
ROPs
24
64 KB (per SM)
L1 Cache
16 KB (per SMX)
512 KB
L2 Cache
384 KB
Theoretical Performance
13.60 GPixel/s
Pixel Rate
27.44 GPixel/s
54.40 GTexel/s
Texture Rate
109.8 GTexel/s
1306 GFLOPS
FP32 (float)
2.634 TFLOPS
108.8 GFLOPS
FP64 (double)
109.8 GFLOPS
Board Design
170W
TDP
150W
450 W
Suggested PSU
450 W
3x DVI
1x mini-HDMI 1.3a
Outputs
2x DVI
1x HDMI 1.4a
1x DisplayPort 1.2
2x 8-pin
Power Connectors
2x 6-pin
Graphics Processor
GF114
GPU Name
GK104
GF114-400-A1
GPU Variant
GK104-300-KD-A2
Fermi 2.0
Architecture
Kepler
TSMC
Foundry
TSMC
40 nm
Process Size
28 nm
1.95 billion
Transistors
3.54 billion
332 mm²
Die Size
294 mm²
Graphics Features
12 (11_0)
DirectX
12 (11_0)
4.6
OpenGL
4.6
1.1
OpenCL
3.0
N/A
Vulkan
1.1
2.1
CUDA
3.0
5.1
Shader Model
5.1
