NVIDIA Tesla K20c vs NVIDIA RTX A4500 Mobile
GPU · Specs Compare
Graphics Card
Release Date
Nov 2012
Mar 2022
Generation
Tesla
Quadro Ampere-M
Type
Professional
Professional
Bus Interface
PCIe 2.0 x16
PCIe 4.0 x16
Clock Speeds
Memory Clock
1300 MHz
2000 MHz
Base Clock
—
930 MHz
Boost Clock
—
1500 MHz
Memory
Memory Size
5GB
16GB
Memory Type
GDDR5
GDDR6
Memory Bus
320bit
256bit
Bandwidth
208.0GB/s
512.0GB/s
Render Config
Shading Units
2496
5888
TMUs
208
184
ROPs
40
96
L1 Cache
16 KB (per SMX)
128 KB (per SM)
L2 Cache
1280 KB
4 MB
SM Count
—
46
Tensor Cores
—
184
RT Cores
—
46
Theoretical Performance
Pixel Rate
36.71 GPixel/s
144.0 GPixel/s
Texture Rate
146.8 GTexel/s
276.0 GTexel/s
FP32 (float)
3.524 TFLOPS
17.66 TFLOPS
FP64 (double)
1175 GFLOPS
276.0 GFLOPS
FP16 (half)
—
17.66 TFLOPS
Graphics Processor
GPU Name
GK110
GA104
GPU Variant
GK110-885-KA-A1
—
Architecture
Kepler
Ampere
Foundry
TSMC
Samsung
Process Size
28 nm
8 nm
Transistors
7.08 billion
17.4 billion
Die Size
561 mm²
392 mm²
Board Design
TDP
225W
140W
Suggested PSU
550 W
—
Outputs
No outputs
Portable Device Dependent
Power Connectors
1x 6-pin + 1x 8-pin
None
Graphics Features
DirectX
12 (11_0)
12 Ultimate (12_2)
OpenGL
4.6
4.6
OpenCL
3.0
3.0
Vulkan
1.1
1.3
CUDA
3.5
8.6
Shader Model
5.1
6.7
Benchmark
OctaneBench
55
—
▲ Specs Compare
Data sourced from official specifications and benchmark tests.