GPU Comparison
RADEON
AMD Radeon RX 550X
CORE STATE
Lexa
VRAM
4 GB
CLOCK SPEED
1183 MHz
TDP
50 W
BUS WIDTH
128 bit
ARCHITECTURE
GCN 4.0
PROCESS
14 nm
LAUNCH DATE
2018
VS
GEFORCE
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
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
RX 550X
Quadro K620
Core Specs
Shading Units
512
384
-25.0%
Shaders
512
384
-25.0%
TMUs
32
24
-25.0%
ROPs
16
16
0.0%
Compute Units
8
—
Clocks
Base Clock
1100 MHz
1058 MHz
Boost Clock
1183 MHz
1124 MHz
Memory Clock
1500 MHz
6 Gbps effective
900 MHz
1800 Mbps effective
Memory
Memory Size
4 GB
2 GB
VRAM (MB)
4,096
2,048
-50.0%
Memory Type
GDDR5
DDR3
Memory Bus
128 bit
128 bit
Bandwidth
96.00 GB/s
28.80 GB/s
Cache
L1 Cache
16 KB (per CU)
64 KB (per SMM)
L2 Cache
512 KB
2 MB
Performance
Pixel Rate
18.93 GPixel/s
17.98 GPixel/s
Texture Rate
37.86 GTexel/s
26.98 GTexel/s
FP32 (TFLOPS)
1,211.4 GFLOPS
863.2 GFLOPS
FP64 (TFLOPS)
75.71 GFLOPS (1:16)
26.98 GFLOPS (1:32)
FP16 (TFLOPS)
1,211.4 GFLOPS (1:1)
—
Power
TDP
50 W
45 W
TDP (W)
50
45
-10.0%
Suggested PSU
250 W
200 W
Power Connectors
None
None
Architecture
Architecture
GCN 4.0
Maxwell
GPU Name
Lexa
GM107
Generation
Polaris
(RX 500X)
Quadro Kepler
(Kx200)
Process Size
14 nm
28 nm
Transistors
2,200 million
1,870 million
Die Size
103 mm²
148 mm²
Foundry
GlobalFoundries
TSMC
Density
21.4M / mm²
12.6M / mm²
API Support
DirectX
12 (12_0)
12 (11_0)
OpenGL
4.6
4.6
Vulkan
1.3
1.4
OpenCL
2.1
3.0
CUDA
—
5.0
Shader Model
6.7
6.7 (5.1)
Physical
Slot Width
Dual-slot
Single-slot
Length
145 mm
5.7 inches
160 mm
6.3 inches
Height
—
69 mm
2.7 inches
Outputs
1x DVI1x HDMI 2.0b1x DisplayPort 1.4a
1x DVI1x DisplayPort 1.2
Bus Interface
PCIe 3.0 x8
PCIe 2.0 x16
Other
Production
End-of-life
End-of-life
Predecessor
Polaris
Quadro Fermi
Successor
Vega
Quadro Maxwell