NVIDIA Tesla K20c vs NVIDIA RTX PRO 4500 Blackwell
GPU · Specs Compare
Graphics Card
Release Date
Nov 2012
Mar 2025
Generation
Tesla
Blackwell PRO W
Type
Professional
Desktop
Bus Interface
PCIe 2.0 x16
PCIe 5.0 x16
Clock Speeds
Memory Clock
1300 MHz
1750 MHz
Base Clock
—
1635 MHz
Boost Clock
—
2407 MHz
Memory
Memory Size
5GB
32GB
Memory Type
GDDR5
GDDR7
Memory Bus
320bit
256bit
Bandwidth
208.0GB/s
896.0GB/s
Render Config
Shading Units
2496
10496
TMUs
208
328
ROPs
40
112
L1 Cache
16 KB (per SMX)
128 KB (per SM)
L2 Cache
1280 KB
64 MB
SM Count
—
82
Tensor Cores
—
328
RT Cores
—
82
Theoretical Performance
Pixel Rate
36.71 GPixel/s
269.6 GPixel/s
Texture Rate
146.8 GTexel/s
789.5 GTexel/s
FP32 (float)
3.524 TFLOPS
50.53 TFLOPS
FP64 (double)
1175 GFLOPS
789.5 GFLOPS
FP16 (half)
—
50.53 TFLOPS
Graphics Processor
GPU Name
GK110
GB203
GPU Variant
GK110-885-KA-A1
—
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
225W
200W
Suggested PSU
550 W
550 W
Outputs
No outputs
4x DisplayPort 2.1b
Power Connectors
1x 6-pin + 1x 8-pin
1x 16-pin
Graphics Features
DirectX
12 (11_0)
12 Ultimate (12_2)
OpenGL
4.6
4.6
OpenCL
3.0
3.0
Vulkan
1.1
1.4
CUDA
3.5
12.0
Shader Model
5.1
6.8
Benchmark
OctaneBench
55
—
▲ Specs Compare
Data sourced from official specifications and benchmark tests.