Quadro RTX 8000 vs Quadro K420
We compared two Professional market GPUs: 48GB VRAM Quadro RTX 8000 and 1024MB VRAM Quadro K420 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
Quadro RTX 8000 's Advantages
Released 4 years and 1 months late
Boost Clock1770MHz
More VRAM (48GB vs 1024GB)
Larger VRAM bandwidth (672.0GB/s vs 28.51GB/s)
4416 additional rendering cores
Quadro K420 's Advantages
Lower TDP (41W vs 260W)
Score
Benchmark
FP32 (float)
Quadro RTX 8000
+4754%
16310
Quadro K420
336
3DMark Time Spy
Quadro RTX 8000
+6248%
13586
Quadro K420
214
Graphics Card
Aug 2018
Release Date
Jul 2014
Quadro
Generation
Quadro
Professional
Type
Professional
PCIe 3.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
1395 MHz
Base Clock
-
1770 MHz
Boost Clock
-
1750 MHz
Memory Clock
891 MHz
Memory
48GB
Memory Size
1024MB
GDDR6
Memory Type
DDR3
384bit
Memory Bus
128bit
672.0GB/s
Bandwidth
28.51GB/s
Render Config
72
SM Count
-
4608
Shading Units
192
288
TMUs
16
96
ROPs
16
576
Tensor Cores
-
72
RT Cores
-
64 KB (per SM)
L1 Cache
16 KB (per SMX)
6 MB
L2 Cache
256 KB
Theoretical Performance
169.9 GPixel/s
Pixel Rate
3.504 GPixel/s
509.8 GTexel/s
Texture Rate
14.02 GTexel/s
32.62 TFLOPS
FP16 (half)
-
16.31 TFLOPS
FP32 (float)
336.4 GFLOPS
509.8 GFLOPS
FP64 (double)
14.02 GFLOPS
Board Design
260W
TDP
41W
600 W
Suggested PSU
200 W
4x DisplayPort 1.4a
1x USB Type-C
Outputs
1x DVI
1x DisplayPort 1.2
1x 6-pin + 1x 8-pin
Power Connectors
None
Graphics Processor
TU102
GPU Name
GK107
TU102-875-A1
GPU Variant
GK107-301-A2
Turing
Architecture
Kepler
TSMC
Foundry
TSMC
12 nm
Process Size
28 nm
18.6 billion
Transistors
1.27 billion
754 mm²
Die Size
118 mm²
Graphics Features
12 Ultimate (12_2)
DirectX
12 (11_0)
4.6
OpenGL
4.6
3.0
OpenCL
3.0
1.3
Vulkan
1.1
7.5
CUDA
3.0
6.6
Shader Model
5.1
