NVIDIA Tesla K40d vs NVIDIA RTX PRO 4000 Blackwell
GPU Specs Compare
Graphics Card
Release Date
Nov 2013
Mar 2025
Generation
Tesla Kepler
Blackwell PRO W
Type
Professional
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 5.0 x16
Clock Speeds
Base Clock
745 MHz
1230 MHz
Boost Clock
876 MHz
2055 MHz
Memory Clock
1502 MHz
1750 MHz
Memory
Memory Size
12GB
24GB
Memory Type
GDDR5
GDDR7
Memory Bus
384bit
192bit
Bandwidth
288.4GB/s
672.0GB/s
Render Config
Shading Units
2880
8960
TMUs
240
280
ROPs
48
96
L1 Cache
16 KB (per SMX)
128 KB (per SM)
L2 Cache
1536 KB
48 MB
SM Count
-
70
Tensor Cores
-
280
RT Cores
-
70
Theoretical Performance
Pixel Rate
52.56 GPixel/s
197.3 GPixel/s
Texture Rate
210.2 GTexel/s
575.4 GTexel/s
FP32 (float)
5.046 TFLOPS
36.83 TFLOPS
FP64 (double)
1.682 TFLOPS
575.4 GFLOPS
FP16 (half)
-
36.83 TFLOPS
Graphics Processor
GPU Name
GK110B
GB203
Architecture
Kepler
Blackwell 2.0
Foundry
TSMC
TSMC
Process Size
28 nm
5 nm
Transistors
7.08 billion
45.6 billion
Die Size
561 mm²
378 mm²
Board Design
TDP
245W
140W
Suggested PSU
550 W
300 W
Outputs
No outputs
4x DisplayPort 2.1b
Power Connectors
-
1x 16-pin
Graphics Features
DirectX
12 (11_1)
12 Ultimate (12_2)
OpenGL
4.6
4.6
OpenCL
3.0
3.0
Vulkan
1.2.175
1.4
CUDA
3.5
12.0
Shader Model
6.5 (5.1)
6.8