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GPU Comparison
NVIDIA Quadro K420 vs NVIDIA Quadro K620
NVIDIA Quadro K420 vs NVIDIA Quadro K620
VS
NVIDIA Quadro K420
NVIDIA Quadro K620
We compared two Professional market GPUs: 1024MB VRAM Quadro K420 and 2GB VRAM Quadro K620 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA Quadro K420 's Advantages
Lower TDP (41W vs 45W)
NVIDIA Quadro K620 's Advantages
Boost Clock1124MHz
More VRAM (2GB vs 1GB)
Larger VRAM bandwidth (28.80GB/s vs 28.51GB/s)
192 additional rendering cores
Score
Benchmark
FP32 (float)
Quadro K420
0.336 TFLOPS
Quadro K620
+156%
0.863 TFLOPS
Quadro K420
VS
Quadro K620
Graphics Card
Jul 2014
Release Date
Jul 2014
Quadro
Generation
Quadro
Professional
Type
Professional
PCIe 2.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
-
Base Clock
1058 MHz
-
Boost Clock
1124 MHz
891 MHz
Memory Clock
900 MHz
Memory
1024MB
Memory Size
2GB
DDR3
Memory Type
DDR3
128bit
Memory Bus
128bit
28.51GB/s
Bandwidth
28.80GB/s
Render Config
-
SM Count
-
-
Compute Units
-
192
Shading Units
384
16
TMUs
24
16
ROPs
16
-
Tensor Cores
-
-
RT Cores
-
16 KB (per SMX)
L1 Cache
64 KB (per SMM)
256 KB
L2 Cache
2 MB
Theoretical Performance
3.504 GPixel/s
Pixel Rate
17.98 GPixel/s
14.02 GTexel/s
Texture Rate
26.98 GTexel/s
-
FP16 (half)
-
336.4 GFLOPS
FP32 (float)
863.2 GFLOPS
14.02 GFLOPS
FP64 (double)
26.98 GFLOPS
Graphics Processor
GK107
GPU Name
GM107
GK107-301-A2
GPU Variant
GM107-850-A2
Kepler
Architecture
Maxwell
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
1.27 billion
Transistors
1.87 billion
118 mm²
Die Size
148 mm²
Board Design
41W
TDP
45W
200 W
Suggested PSU
200 W
1x DVI 1x DisplayPort 1.2
Outputs
1x DVI 1x DisplayPort 1.4a
None
Power Connectors
None
Graphics Features
12 (11_0)
DirectX
12 (11_0)
4.6
OpenGL
4.6
3.0
OpenCL
3.0
1.1
Vulkan
1.3
3.0
CUDA
5.0
5.1
Shader Model
5.1
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