Data Center GPU Flex 140 vs Tesla K40st
We compared two Professional market GPUs: 6GB VRAM Data Center GPU Flex 140 and 12GB VRAM Tesla K40st to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
Data Center GPU Flex 140 's Advantages
Released 8 years and 9 months late
Boost Clock1950MHz
Lower TDP (75W vs 245W)
Tesla K40st 's Advantages
More VRAM (12GB vs 6GB)
Larger VRAM bandwidth (288.4GB/s vs 186.0GB/s)
1856 additional rendering cores
Score
Benchmark
FP32 (float)
Data Center GPU Flex 140
+20%
3994
Tesla K40st
3312
Graphics Card
Aug 2022
Release Date
Nov 2013
Data Center GPU
Generation
Tesla
Professional
Type
Professional
PCIe 4.0 x8
Bus Interface
PCIe 3.0 x16
Clock Speeds
1600 MHz
Base Clock
-
1950 MHz
Boost Clock
-
1937 MHz
Memory Clock
1502 MHz
Memory
6GB
Memory Size
12GB
GDDR6
Memory Type
GDDR5
96bit
Memory Bus
384bit
186.0GB/s
Bandwidth
288.4GB/s
Render Config
1024
Shading Units
2880
64
TMUs
240
32
ROPs
48
8
RT Cores
-
-
L1 Cache
16 KB (per SMX)
4 MB
L2 Cache
1536 KB
Theoretical Performance
62.40 GPixel/s
Pixel Rate
34.50 GPixel/s
124.8 GTexel/s
Texture Rate
138.0 GTexel/s
7.987 TFLOPS
FP16 (half)
-
3.994 TFLOPS
FP32 (float)
3.312 TFLOPS
-
FP64 (double)
1104 GFLOPS
Board Design
75W
TDP
245W
250 W
Suggested PSU
550 W
1x HDMI 2.1
3x DisplayPort 2.0
Outputs
No outputs
1x 8-pin
Power Connectors
-
Graphics Processor
DG2-128
GPU Name
GK110B
ACM-G11
GPU Variant
-
Generation 12.7
Architecture
Kepler
TSMC
Foundry
TSMC
6 nm
Process Size
28 nm
7.2 billion
Transistors
7.08 billion
157 mm²
Die Size
561 mm²
Graphics Features
12 Ultimate (12_2)
DirectX
12 (11_1)
4.6
OpenGL
4.6
3.0
OpenCL
3.0
1.3
Vulkan
1.1
-
CUDA
3.5
6.6
Shader Model
5.1
