GPU Comparison
RADEON
AMD Radeon 550X
CORE STATE
Lexa
VRAM
2 GB
CLOCK SPEED
1218 MHz
TDP
50 W
BUS WIDTH
128 bit
ARCHITECTURE
GCN 4.0
PROCESS
14 nm
LAUNCH DATE
2019
VS
RADEON
Radeon R5 M255
CORE STATE
Topaz
VRAM
2 GB
CLOCK SPEED
940 MHz
TDP
—
BUS WIDTH
128 bit
ARCHITECTURE
GCN 3.0
PROCESS
28 nm
LAUNCH DATE
2014
PERFORMANCE BENCHMARKS
geekbench_opencl
DETAILED SPECIFICATIONS
SPECIFICATION
550X
R5 M255
Core Specs
Shading Units
512
384
-25.0%
Shaders
512
384
-25.0%
TMUs
32
24
-25.0%
ROPs
16
8
-50.0%
Compute Units
8
6
-25.0%
Clocks
Base Clock
1082 MHz
925 MHz
Boost Clock
1218 MHz
940 MHz
Memory Clock
1750 MHz
7 Gbps effective
1000 MHz
2 Gbps effective
Memory
Memory Size
2 GB
2 GB
VRAM (MB)
2,048
2,048
0.0%
Memory Type
GDDR5
DDR3
Memory Bus
128 bit
128 bit
Bandwidth
112.0 GB/s
32.00 GB/s
Cache
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
512 KB
256 KB
Performance
Pixel Rate
19.49 GPixel/s
7.520 GPixel/s
Texture Rate
38.98 GTexel/s
22.56 GTexel/s
FP32 (TFLOPS)
1,247.2 GFLOPS
721.9 GFLOPS
FP64 (TFLOPS)
77.95 GFLOPS (1:16)
45.12 GFLOPS (1:16)
FP16 (TFLOPS)
1,247.2 GFLOPS (1:1)
721.9 GFLOPS (1:1)
Power
TDP
50 W
—
TDP (W)
50
—
Suggested PSU
250 W
—
Power Connectors
None
—
Architecture
Architecture
GCN 4.0
GCN 3.0
GPU Name
Lexa
Topaz
Generation
Polaris
(RX 500X)
Gem System
(R5 M200)
Process Size
14 nm
28 nm
Transistors
2,200 million
1,550 million
Die Size
103 mm²
125 mm²
Foundry
GlobalFoundries
TSMC
Density
21.4M / mm²
12.4M / mm²
API Support
DirectX
12 (12_0)
12 (12_0)
OpenGL
4.6
4.6
Vulkan
1.3
1.2.170
OpenCL
2.1
2.1
Shader Model
6.7
6.5
Physical
Slot Width
Dual-slot
—
Length
145 mm
5.7 inches
—
Outputs
1x DVI1x HDMI 2.0b1x DisplayPort 1.4a
—
Bus Interface
PCIe 3.0 x8
PCIe 3.0 x8
Other
Production
End-of-life
End-of-life
Predecessor
Polaris
Solar System
Successor
Vega
Polaris Mobile