NVIDIA TITAN X Pascal vs NVIDIA GeForce GTX 645 OEM
We compared two Desktop platform GPUs: 12GB VRAM TITAN X Pascal and 1024MB VRAM GeForce GTX 645 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA TITAN X Pascal 's Advantages
Released 3 years and 4 months late
Boost Clock1531MHz
More VRAM (12GB vs 1024GB)
Larger VRAM bandwidth (480.4GB/s vs 64.00GB/s)
3008 additional rendering cores
NVIDIA GeForce GTX 645 OEM 's Advantages
Lower TDP (65W vs 250W)
Score
Benchmark
FP32 (float)
TITAN X Pascal
+1055%
10.97 TFLOPS
GeForce GTX 645 OEM
0.949 TFLOPS
Graphics Card
Aug 2016
Release Date
Apr 2013
GeForce 10
Generation
GeForce 600
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
1417 MHz
Base Clock
-
1531 MHz
Boost Clock
-
1251 MHz
Memory Clock
1000 MHz
Memory
12GB
Memory Size
1024MB
GDDR5X
Memory Type
GDDR5
384bit
Memory Bus
128bit
480.4GB/s
Bandwidth
64.00GB/s
Render Config
-
-
-
28
SM Count
-
3584
Shading Units
576
224
TMUs
48
96
ROPs
16
-
-
-
-
-
-
48 KB (per SM)
L1 Cache
16 KB (per SMX)
3 MB
L2 Cache
256 KB
-
-
-
Theoretical Performance
147.0 GPixel/s
Pixel Rate
9.888 GPixel/s
342.9 GTexel/s
Texture Rate
39.55 GTexel/s
171.5 GFLOPS
FP16 (half)
-
10.97 TFLOPS
FP32 (float)
949.2 GFLOPS
342.9 GFLOPS
FP64 (double)
39.55 GFLOPS
Board Design
250W
TDP
65W
600 W
Suggested PSU
250 W
1x DVI
1x HDMI 2.0
3x DisplayPort 1.4a
Outputs
1x DVI
1x HDMI 1.4a
1x DisplayPort 1.2
1x 6-pin + 1x 8-pin
Power Connectors
None
Graphics Processor
GP102
GPU Name
GK106
GP102-400-A1
GPU Variant
GK106-200-A1
Pascal
Architecture
Kepler
TSMC
Foundry
TSMC
16 nm
Process Size
28 nm
11.8 billion
Transistors
2.54 billion
471 mm²
Die Size
221 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
