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
RTX 4000 SFF Ada Generation
CORE STATE
AD104
VRAM
20 GB
CLOCK SPEED
1560 MHz
TDP
70 W
BUS WIDTH
160 bit
ARCHITECTURE
Ada Lovelace
PROCESS
5 nm
LAUNCH DATE
2023
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
Quadro K620
RTX 4000 SFF Ada Generation
Core Specs
Shading Units
384
6,144
+1500.0%
Shaders
384
6,144
+1500.0%
TMUs
24
192
+700.0%
ROPs
16
64
+300.0%
SM Count
—
48
Clocks
Base Clock
1058 MHz
720 MHz
Boost Clock
1124 MHz
1560 MHz
Memory Clock
900 MHz
1800 Mbps effective
1750 MHz
14 Gbps effective
Memory
Memory Size
2 GB
20 GB
VRAM (MB)
2,048
20,480
+900.0%
Memory Type
DDR3
GDDR6
Memory Bus
128 bit
160 bit
Bandwidth
28.80 GB/s
280.0 GB/s
Cache
L1 Cache
64 KB (per SMM)
128 KB (per SM)
L2 Cache
2 MB
48 MB
Performance
Pixel Rate
17.98 GPixel/s
99.84 GPixel/s
Texture Rate
26.98 GTexel/s
299.5 GTexel/s
FP32 (TFLOPS)
863.2 GFLOPS
19.17 TFLOPS
FP64 (TFLOPS)
26.98 GFLOPS (1:32)
299.5 GFLOPS (1:64)
FP16 (TFLOPS)
—
19.17 TFLOPS (1:1)
AI/RT
RT Cores
—
48
Tensor Cores
—
192
Power
TDP
45 W
70 W
TDP (W)
45
70
+55.6%
Suggested PSU
200 W
250 W
Power Connectors
None
None
Architecture
Architecture
Maxwell
Ada Lovelace
GPU Name
GM107
AD104
Generation
Quadro Kepler
(Kx200)
Workstation Ada
(x000A)
Process Size
28 nm
5 nm
Transistors
1,870 million
35,800 million
Die Size
148 mm²
294 mm²
Foundry
TSMC
TSMC
Density
12.6M / mm²
121.8M / mm²
API Support
DirectX
12 (11_0)
12 Ultimate (12_2)
OpenGL
4.6
4.6
Vulkan
1.4
1.4
OpenCL
3.0
3.0
CUDA
5.0
8.9
Shader Model
6.7 (5.1)
6.8
Physical
Slot Width
Single-slot
Dual-slot
Length
160 mm
6.3 inches
168 mm
6.6 inches
Height
69 mm
2.7 inches
69 mm
2.7 inches
Outputs
1x DVI1x DisplayPort 1.2
4x mini-DisplayPort 1.4a
Bus Interface
PCIe 2.0 x16
PCIe 4.0 x16
Other
Production
End-of-life
Active
Predecessor
Quadro Fermi
Workstation Ampere
Successor
Quadro Maxwell
Blackwell PRO W