NVIDIA TITAN X Pascal vs NVIDIA A40 PCIe
We compared two Desktop platform GPUs: 12GB VRAM TITAN X Pascal and 48GB VRAM A40 PCIe to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA TITAN X Pascal 's Advantages
Lower TDP (250W vs 300W)
NVIDIA A40 PCIe 's Advantages
Released 4 years and 2 months late
Boost Clock has increased by 14% (1740MHz vs 1531MHz)
More VRAM (48GB vs 12GB)
Larger VRAM bandwidth (695.8GB/s vs 480.4GB/s)
7168 additional rendering cores
Score
Benchmark
FP32 (float)
TITAN X Pascal
10.97 TFLOPS
A40 PCIe
+241%
37.42 TFLOPS
Graphics Card
Aug 2016
Release Date
Oct 2020
GeForce 10
Generation
Tesla
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 4.0 x16
Clock Speeds
1417 MHz
Base Clock
1305 MHz
1531 MHz
Boost Clock
1740 MHz
1251 MHz
Memory Clock
1812 MHz
Memory
12GB
Memory Size
48GB
GDDR5X
Memory Type
GDDR6
384bit
Memory Bus
384bit
480.4GB/s
Bandwidth
695.8GB/s
Render Config
-
-
-
28
SM Count
84
3584
Shading Units
10752
224
TMUs
336
96
ROPs
112
-
Tensor Cores
336
-
RT Cores
84
48 KB (per SM)
L1 Cache
128 KB (per SM)
3 MB
L2 Cache
6 MB
-
-
-
Theoretical Performance
147.0 GPixel/s
Pixel Rate
194.9 GPixel/s
342.9 GTexel/s
Texture Rate
584.6 GTexel/s
171.5 GFLOPS
FP16 (half)
37.42 TFLOPS
10.97 TFLOPS
FP32 (float)
37.42 TFLOPS
342.9 GFLOPS
FP64 (double)
584.6 GFLOPS
Board Design
250W
TDP
300W
600 W
Suggested PSU
700 W
1x DVI
1x HDMI 2.0
3x DisplayPort 1.4a
Outputs
3x DisplayPort 1.4a
1x 6-pin + 1x 8-pin
Power Connectors
8-pin EPS
Graphics Processor
GP102
GPU Name
GA102
GP102-400-A1
GPU Variant
-
Pascal
Architecture
Ampere
TSMC
Foundry
Samsung
16 nm
Process Size
8 nm
11.8 billion
Transistors
28.3 billion
471 mm²
Die Size
628 mm²
Graphics Features
12 (12_1)
DirectX
12 Ultimate (12_2)
4.6
OpenGL
4.6
3.0
OpenCL
3.0
1.3
Vulkan
1.3
6.1
CUDA
8.6
6.4
Shader Model
6.6
