NVIDIA GeForce GT 440 Mac Edition vs NVIDIA GeForce GT 640 OEM Rebrand
We compared two Desktop platform GPUs: 1024MB VRAM GeForce GT 440 Mac Edition and 1536MB VRAM GeForce GT 640 OEM Rebrand to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA GeForce GT 440 Mac Edition 's Advantages
Lower TDP (65W vs 75W)
NVIDIA GeForce GT 640 OEM Rebrand 's Advantages
Released 1 years and 2 months late
More VRAM (1536GB vs 1024GB)
Larger VRAM bandwidth (38.40GB/s vs 21.34GB/s)
48 additional rendering cores
Score
Benchmark
FP32 (float)
GeForce GT 440 Mac Edition
0.311 TFLOPS
GeForce GT 640 OEM Rebrand
+33%
0.415 TFLOPS
Graphics Card
Feb 2011
Release Date
Apr 2012
GeForce 400
Generation
GeForce 600
Desktop
Type
Desktop
PCIe 1.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
-
-
-
-
-
-
667 MHz
Memory Clock
800 MHz
Memory
1024MB
Memory Size
1536MB
DDR3
Memory Type
DDR3
128bit
Memory Bus
192bit
21.34GB/s
Bandwidth
38.40GB/s
Render Config
-
-
-
2
SM Count
3
96
Shading Units
144
16
TMUs
24
4
ROPs
24
-
-
-
-
-
-
64 KB (per SM)
L1 Cache
64 KB (per SM)
256 KB
L2 Cache
384 KB
-
-
-
Theoretical Performance
3.240 GPixel/s
Pixel Rate
4.320 GPixel/s
12.96 GTexel/s
Texture Rate
17.28 GTexel/s
-
-
-
311.0 GFLOPS
FP32 (float)
414.7 GFLOPS
25.92 GFLOPS
FP64 (double)
34.56 GFLOPS
Board Design
65W
TDP
75W
250 W
Suggested PSU
250 W
1x DVI
1x HDMI 1.3a
1x VGA
Outputs
2x DVI
1x mini-HDMI 1.3a
None
Power Connectors
None
Graphics Processor
GF108
GPU Name
GF116
GF108-400-A1
GPU Variant
GF116-150-A1
Fermi
Architecture
Fermi 2.0
TSMC
Foundry
TSMC
40 nm
Process Size
40 nm
0.585 billion
Transistors
1.17 billion
116 mm²
Die Size
238 mm²
Graphics Features
12 (11_0)
DirectX
12 (11_0)
4.6
OpenGL
4.6
1.1
OpenCL
1.1
N/A
Vulkan
N/A
2.1
CUDA
2.1
5.1
Shader Model
5.1
