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GPU Comparison
NVIDIA P104 101 vs NVIDIA GeForce GT 640
NVIDIA P104 101 vs NVIDIA GeForce GT 640
VS
NVIDIA P104 101
NVIDIA GeForce GT 640
We compared two Desktop platform GPUs: 4GB VRAM P104 101 and 2GB VRAM GeForce GT 640 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA P104 101 's Advantages
Released 5 years and 7 months late
Boost Clock1683MHz
More VRAM (4GB vs 2GB)
Larger VRAM bandwidth (256.3GB/s vs 28.51GB/s)
2176 additional rendering cores
NVIDIA GeForce GT 640 's Advantages
Lower TDP (65W vs 125W)
Score
Benchmark
FP32 (float)
P104 101
+1143%
8.617 TFLOPS
GeForce GT 640
0.693 TFLOPS
P104 101
VS
GeForce GT 640
Graphics Card
Jan 2018
Release Date
Jun 2012
Mining GPUs
Generation
GeForce 600
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
1506 MHz
Base Clock
-
1683 MHz
Boost Clock
-
2002 MHz
Memory Clock
891 MHz
Memory
4GB
Memory Size
2GB
GDDR5
Memory Type
DDR3
256bit
Memory Bus
128bit
256.3GB/s
Bandwidth
28.51GB/s
Render Config
-
-
-
20
SM Count
-
2560
Shading Units
384
160
TMUs
32
64
ROPs
16
-
-
-
-
-
-
48 KB (per SM)
L1 Cache
16 KB (per SMX)
2 MB
L2 Cache
256 KB
-
-
-
Theoretical Performance
107.7 GPixel/s
Pixel Rate
7.216 GPixel/s
269.3 GTexel/s
Texture Rate
28.86 GTexel/s
134.6 GFLOPS
FP16 (half)
-
8.617 TFLOPS
FP32 (float)
692.7 GFLOPS
269.3 GFLOPS
FP64 (double)
28.86 GFLOPS
Board Design
125W
TDP
65W
200 W
Suggested PSU
250 W
No outputs
Outputs
1x DVI 1x HDMI 1.4a 1x DisplayPort 1.2
1x 8-pin
Power Connectors
None
Graphics Processor
GP104
GPU Name
GK107
GP104-101-A1
GPU Variant
GK107-300-A2
Pascal
Architecture
Kepler
TSMC
Foundry
TSMC
16 nm
Process Size
28 nm
7.2 billion
Transistors
1.27 billion
314 mm²
Die Size
118 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
6.1
CUDA
3.0
6.4
Shader Model
5.1
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5
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6
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7
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8
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9
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10
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