GPU Comparison
RADEON
AMD Radeon Pro 555X
CORE STATE
Polaris 21
VRAM
4 GB
CLOCK SPEED
—
TDP
75 W
BUS WIDTH
128 bit
ARCHITECTURE
GCN 4.0
PROCESS
14 nm
LAUNCH DATE
2018
VS
RADEON
Radeon R7 Graphics
CORE STATE
Spectre Lite
VRAM
System Shared
CLOCK SPEED
—
TDP
25 W
BUS WIDTH
System Shared
ARCHITECTURE
GCN 2.0
PROCESS
28 nm
LAUNCH DATE
2014
PERFORMANCE BENCHMARKS
geekbench_metal
geekbench_opencl
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
Pro 555X
R7 Graphics
Core Specs
Shading Units
768
384
-50.0%
Shaders
768
384
-50.0%
TMUs
48
24
-50.0%
ROPs
16
8
-50.0%
Compute Units
12
6
-50.0%
Clocks
GPU Clock
907 MHz
720 MHz
Memory Clock
1470 MHz
5.9 Gbps effective
System Shared
Memory
Memory Size
4 GB
System Shared
VRAM (MB)
4,096
—
Memory Type
GDDR5
System Shared
Memory Bus
128 bit
System Shared
Bandwidth
94.08 GB/s
System Dependent
Cache
L1 Cache
16 KB (per CU)
—
L2 Cache
1024 KB
—
Performance
Pixel Rate
14.51 GPixel/s
5.760 GPixel/s
Texture Rate
43.54 GTexel/s
17.28 GTexel/s
FP32 (TFLOPS)
1,393.2 GFLOPS
553.0 GFLOPS
FP64 (TFLOPS)
87.07 GFLOPS (1:16)
34.56 GFLOPS (1:16)
FP16 (TFLOPS)
1,393.2 GFLOPS (1:1)
—
Power
TDP
75 W
25 W
TDP (W)
75
25
-66.7%
Power Connectors
None
—
Architecture
Architecture
GCN 4.0
GCN 2.0
GPU Name
Polaris 21
Spectre Lite
Generation
Radeon Pro Mac
(500X Series)
GCN 2.0 IGP
(Kaveri)
Process Size
14 nm
28 nm
Transistors
3,000 million
2,410 million
Die Size
123 mm²
245 mm²
Foundry
GlobalFoundries
GlobalFoundries
Density
24.4M / mm²
9.8M / 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
IGP
IGP
Outputs
Portable Device Dependent
Motherboard Dependent
Bus Interface
PCIe 3.0 x8
IGP
Other
Production
End-of-life
End-of-life
Predecessor
—
TeraScale 3 IGP
Successor
—
GCN 3.0 IGP