GPU Comparison
RADEON
AMD Radeon R9 M395X
CORE STATE
Amethyst
VRAM
8 GB
CLOCK SPEED
—
TDP
75 W
BUS WIDTH
256 bit
ARCHITECTURE
GCN 3.0
PROCESS
28 nm
LAUNCH DATE
2015
VS
RADEON
Radeon RX 550
CORE STATE
Lexa
VRAM
2 GB
CLOCK SPEED
1183 MHz
TDP
50 W
BUS WIDTH
128 bit
ARCHITECTURE
GCN 4.0
PROCESS
14 nm
LAUNCH DATE
2017
PERFORMANCE BENCHMARKS
geekbench_metal
geekbench_opencl
3dmark_3dmark_steel_nomad_dx12
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
R9 M395X
RX 550
Core Specs
Shading Units
2,048
512
-75.0%
Shaders
2,048
512
-75.0%
TMUs
128
32
-75.0%
ROPs
32
16
-50.0%
Compute Units
32
8
-75.0%
Clocks
Base Clock
—
1100 MHz
Boost Clock
—
1183 MHz
GPU Clock
723 MHz
—
Memory Clock
1250 MHz
5 Gbps effective
1750 MHz
7 Gbps effective
Memory
Memory Size
8 GB
2 GB
VRAM (MB)
8,192
2,048
-75.0%
Memory Type
GDDR5
GDDR5
Memory Bus
256 bit
128 bit
Bandwidth
160.0 GB/s
112.0 GB/s
Cache
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
512 KB
512 KB
Performance
Pixel Rate
23.14 GPixel/s
18.93 GPixel/s
Texture Rate
92.54 GTexel/s
37.86 GTexel/s
FP32 (TFLOPS)
2.961 TFLOPS
1,211.4 GFLOPS
FP64 (TFLOPS)
185.1 GFLOPS (1:16)
75.71 GFLOPS (1:16)
FP16 (TFLOPS)
2.961 TFLOPS (1:1)
1,211.4 GFLOPS (1:1)
Power
TDP
75 W
50 W
TDP (W)
75
50
-33.3%
Suggested PSU
—
250 W
Power Connectors
None
None
Architecture
Architecture
GCN 3.0
GCN 4.0
GPU Name
Amethyst
Lexa
Generation
Gem System
(R9 M300)
Polaris
(RX 500)
Process Size
28 nm
14 nm
Transistors
5,000 million
2,200 million
Die Size
366 mm²
103 mm²
Foundry
TSMC
GlobalFoundries
Density
13.7M / mm²
21.4M / mm²
API Support
DirectX
12 (12_0)
12 (12_0)
OpenGL
4.6
4.6
Vulkan
1.2.170
1.3
OpenCL
2.1
2.1
Shader Model
6.5
6.7
Physical
Slot Width
MXM Module
Dual-slot
Length
—
145 mm
5.7 inches
Outputs
Portable Device Dependent
1x DVI1x HDMI 2.0b1x DisplayPort 1.4a
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x8
Other
Launch Price
—
79 USD
Production
End-of-life
End-of-life
Predecessor
Solar System
Arctic Islands
Successor
Polaris Mobile
Vega