NVIDIA TITAN X Pascal vs NVIDIA GeForce GT 640 OEM Rebrand
We compared two Desktop platform GPUs: 12GB VRAM TITAN X Pascal 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 TITAN X Pascal 's Advantages
Released 4 years and 4 months late
Boost Clock1531MHz
More VRAM (12GB vs 1536GB)
Larger VRAM bandwidth (480.4GB/s vs 38.40GB/s)
3440 additional rendering cores
NVIDIA GeForce GT 640 OEM Rebrand 's Advantages
Lower TDP (75W vs 250W)
Score
Benchmark
FP32 (float)
TITAN X Pascal
+2543%
10.97 TFLOPS
GeForce GT 640 OEM Rebrand
0.415 TFLOPS
Graphics Card
Aug 2016
Release Date
Apr 2012
GeForce 10
Generation
GeForce 600
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
1417 MHz
Base Clock
-
1531 MHz
Boost Clock
-
1251 MHz
Memory Clock
800 MHz
Memory
12GB
Memory Size
1536MB
GDDR5X
Memory Type
DDR3
384bit
Memory Bus
192bit
480.4GB/s
Bandwidth
38.40GB/s
Render Config
-
-
-
28
SM Count
3
3584
Shading Units
144
224
TMUs
24
96
ROPs
24
-
-
-
-
-
-
48 KB (per SM)
L1 Cache
64 KB (per SM)
3 MB
L2 Cache
384 KB
-
-
-
Theoretical Performance
147.0 GPixel/s
Pixel Rate
4.320 GPixel/s
342.9 GTexel/s
Texture Rate
17.28 GTexel/s
171.5 GFLOPS
FP16 (half)
-
10.97 TFLOPS
FP32 (float)
414.7 GFLOPS
342.9 GFLOPS
FP64 (double)
34.56 GFLOPS
Board Design
250W
TDP
75W
600 W
Suggested PSU
250 W
1x DVI
1x HDMI 2.0
3x DisplayPort 1.4a
Outputs
2x DVI
1x mini-HDMI 1.3a
1x 6-pin + 1x 8-pin
Power Connectors
None
Graphics Processor
GP102
GPU Name
GF116
GP102-400-A1
GPU Variant
GF116-150-A1
Pascal
Architecture
Fermi 2.0
TSMC
Foundry
TSMC
16 nm
Process Size
40 nm
11.8 billion
Transistors
1.17 billion
471 mm²
Die Size
238 mm²
Graphics Features
12 (12_1)
DirectX
12 (11_0)
4.6
OpenGL
4.6
3.0
OpenCL
1.1
1.3
Vulkan
N/A
6.1
CUDA
2.1
6.4
Shader Model
5.1
