GPU Comparison
GEFORCE
NVIDIA Quadro K620
CORE STATE
GM107
VRAM
2 GB
CLOCK SPEED
1124 MHz
TDP
45 W
BUS WIDTH
128 bit
ARCHITECTURE
Maxwell
PROCESS
28 nm
LAUNCH DATE
2014
VS
GEFORCE
T400
CORE STATE
TU117
VRAM
2 GB
CLOCK SPEED
1425 MHz
TDP
30 W
BUS WIDTH
64 bit
ARCHITECTURE
Turing
PROCESS
12 nm
LAUNCH DATE
2021
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
Quadro K620
T400
Core Specs
Shading Units
384
384
0.0%
Shaders
384
384
0.0%
TMUs
24
24
0.0%
ROPs
16
16
0.0%
SM Count
—
6
Clocks
Base Clock
1058 MHz
420 MHz
Boost Clock
1124 MHz
1425 MHz
Memory Clock
900 MHz
1800 Mbps effective
1250 MHz
10 Gbps effective
Memory
Memory Size
2 GB
2 GB
VRAM (MB)
2,048
2,048
0.0%
Memory Type
DDR3
GDDR6
Memory Bus
128 bit
64 bit
Bandwidth
28.80 GB/s
80.00 GB/s
Cache
L1 Cache
64 KB (per SMM)
64 KB (per SM)
L2 Cache
2 MB
1024 KB
Performance
Pixel Rate
17.98 GPixel/s
22.80 GPixel/s
Texture Rate
26.98 GTexel/s
34.20 GTexel/s
FP32 (TFLOPS)
863.2 GFLOPS
1,094.4 GFLOPS
FP64 (TFLOPS)
26.98 GFLOPS (1:32)
34.20 GFLOPS (1:32)
FP16 (TFLOPS)
—
2.189 TFLOPS (2:1)
Power
TDP
45 W
30 W
TDP (W)
45
30
-33.3%
Suggested PSU
200 W
200 W
Power Connectors
None
None
Architecture
Architecture
Maxwell
Turing
GPU Name
GM107
TU117
Generation
Quadro Kepler
(Kx200)
Quadro Turing
(Tx000)
Process Size
28 nm
12 nm
Transistors
1,870 million
4,700 million
Die Size
148 mm²
200 mm²
Foundry
TSMC
TSMC
Density
12.6M / mm²
23.5M / mm²
API Support
DirectX
12 (11_0)
12 (12_1)
OpenGL
4.6
4.6
Vulkan
1.4
1.4
OpenCL
3.0
3.0
CUDA
5.0
7.5
Shader Model
6.7 (5.1)
6.8
Physical
Slot Width
Single-slot
Single-slot
Length
160 mm
6.3 inches
—
Height
69 mm
2.7 inches
—
Outputs
1x DVI1x DisplayPort 1.2
3x mini-DisplayPort 1.4a
Bus Interface
PCIe 2.0 x16
PCIe 3.0 x16
Other
Production
End-of-life
End-of-life
Predecessor
Quadro Fermi
Quadro Volta
Successor
Quadro Maxwell
Workstation Ampere