NVIDIA P104 100 vs NVIDIA GeForce GT 640
We compared two Desktop platform GPUs: 4GB VRAM P104 100 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 100 's Advantages
Released 5 years and 6 months late
Boost Clock1733MHz
More VRAM (4GB vs 2GB)
Larger VRAM bandwidth (320.3GB/s vs 28.51GB/s)
1536 additional rendering cores
Score
Benchmark
FP32 (float)
P104 100
+860%
6.655 TFLOPS
GeForce GT 640
0.693 TFLOPS
3DMark Time Spy
P104 100
+1229%
5439
GeForce GT 640
409
3DMark Time Spy Extreme
P104 100
+1598%
2718
GeForce GT 640
160
Blender
P104 100
+2090%
701
GeForce GT 640
32
OctaneBench
P104 100
+1450%
124
GeForce GT 640
8
Graphics Card
Dec 2017
Release Date
Jun 2012
Mining GPUs
Generation
GeForce 600
Desktop
Type
Desktop
PCIe 1.0 x4
Bus Interface
PCIe 3.0 x16
Clock Speeds
1607 MHz
Base Clock
-
1733 MHz
Boost Clock
-
1251 MHz
Memory Clock
891 MHz
Memory
4GB
Memory Size
2GB
GDDR5X
Memory Type
DDR3
256bit
Memory Bus
128bit
320.3GB/s
Bandwidth
28.51GB/s
Render Config
-
-
-
15
SM Count
-
1920
Shading Units
384
120
TMUs
32
64
ROPs
16
-
-
-
-
-
-
48 KB (per SM)
L1 Cache
16 KB (per SMX)
2 MB
L2 Cache
256 KB
-
-
-
Theoretical Performance
110.9 GPixel/s
Pixel Rate
7.216 GPixel/s
208.0 GTexel/s
Texture Rate
28.86 GTexel/s
104.0 GFLOPS
FP16 (half)
-
6.655 TFLOPS
FP32 (float)
692.7 GFLOPS
208.0 GFLOPS
FP64 (double)
28.86 GFLOPS
Board Design
Unknown
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
GP104-100-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
6.8
Shader Model
5.1
