NVIDIA GeForce GTX 660 Ti vs NVIDIA GeForce GT 440 Mac Edition
We compared two Desktop platform GPUs: 2GB VRAM GeForce GTX 660 Ti and 1024MB VRAM GeForce GT 440 Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA GeForce GTX 660 Ti 's Advantages
Released 1 years and 6 months late
Boost Clock980MHz
More VRAM (2GB vs 1024GB)
Larger VRAM bandwidth (144.2GB/s vs 21.34GB/s)
1248 additional rendering cores
NVIDIA GeForce GT 440 Mac Edition 's Advantages
Lower TDP (65W vs 150W)
Score
Benchmark
FP32 (float)
GeForce GTX 660 Ti
+746%
2.634 TFLOPS
GeForce GT 440 Mac Edition
0.311 TFLOPS
Graphics Card
Aug 2012
Release Date
Feb 2011
GeForce 600
Generation
GeForce 400
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 1.0 x16
Clock Speeds
915 MHz
Base Clock
-
980 MHz
Boost Clock
-
1502 MHz
Memory Clock
667 MHz
Memory
2GB
Memory Size
1024MB
GDDR5
Memory Type
DDR3
192bit
Memory Bus
128bit
144.2GB/s
Bandwidth
21.34GB/s
Render Config
-
-
-
-
SM Count
2
1344
Shading Units
96
112
TMUs
16
24
ROPs
4
-
-
-
-
-
-
16 KB (per SMX)
L1 Cache
64 KB (per SM)
384 KB
L2 Cache
256 KB
-
-
-
Theoretical Performance
27.44 GPixel/s
Pixel Rate
3.240 GPixel/s
109.8 GTexel/s
Texture Rate
12.96 GTexel/s
-
-
-
2.634 TFLOPS
FP32 (float)
311.0 GFLOPS
109.8 GFLOPS
FP64 (double)
25.92 GFLOPS
Board Design
150W
TDP
65W
450 W
Suggested PSU
250 W
2x DVI
1x HDMI 1.4a
1x DisplayPort 1.2
Outputs
1x DVI
1x HDMI 1.3a
1x VGA
2x 6-pin
Power Connectors
None
Graphics Processor
GK104
GPU Name
GF108
GK104-300-KD-A2
GPU Variant
GF108-400-A1
Kepler
Architecture
Fermi
TSMC
Foundry
TSMC
28 nm
Process Size
40 nm
3.54 billion
Transistors
0.585 billion
294 mm²
Die Size
116 mm²
Graphics Features
12 (11_0)
DirectX
12 (11_0)
4.6
OpenGL
4.6
3.0
OpenCL
1.1
1.1
Vulkan
N/A
3.0
CUDA
2.1
5.1
Shader Model
5.1
