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 RX 460
CORE STATE
Baffin
VRAM
2 GB
CLOCK SPEED
1200 MHz
TDP
75 W
BUS WIDTH
128 bit
ARCHITECTURE
GCN 4.0
PROCESS
14 nm
LAUNCH DATE
2016
PERFORMANCE BENCHMARKS
geekbench_metal
geekbench_opencl
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
Pro 555X
RX 460
Core Specs
Shading Units
768
896
+16.7%
Shaders
768
896
+16.7%
TMUs
48
56
+16.7%
ROPs
16
16
0.0%
Compute Units
12
14
+16.7%
Clocks
Base Clock
—
1090 MHz
Boost Clock
—
1200 MHz
GPU Clock
907 MHz
—
Memory Clock
1470 MHz
5.9 Gbps effective
1750 MHz
7 Gbps effective
Memory
Memory Size
4 GB
2 GB
VRAM (MB)
4,096
2,048
-50.0%
Memory Type
GDDR5
GDDR5
Memory Bus
128 bit
128 bit
Bandwidth
94.08 GB/s
112.0 GB/s
Cache
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
1024 KB
1024 KB
Performance
Pixel Rate
14.51 GPixel/s
19.20 GPixel/s
Texture Rate
43.54 GTexel/s
67.20 GTexel/s
FP32 (TFLOPS)
1,393.2 GFLOPS
2.150 TFLOPS
FP64 (TFLOPS)
87.07 GFLOPS (1:16)
134.4 GFLOPS (1:16)
FP16 (TFLOPS)
1,393.2 GFLOPS (1:1)
2.150 TFLOPS (1:1)
Power
TDP
75 W
75 W
TDP (W)
75
75
0.0%
Suggested PSU
—
250 W
Power Connectors
None
None
Architecture
Architecture
GCN 4.0
GCN 4.0
GPU Name
Polaris 21
Baffin
Generation
Radeon Pro Mac
(500X Series)
Arctic Islands
(RX 400)
Process Size
14 nm
14 nm
Transistors
3,000 million
3,000 million
Die Size
123 mm²
123 mm²
Foundry
GlobalFoundries
GlobalFoundries
Density
24.4M / mm²
24.4M / mm²
API Support
DirectX
12 (12_0)
12 (12_0)
OpenGL
4.6
4.6
Vulkan
1.3
1.3
OpenCL
2.1
2.1
Shader Model
6.7
6.7
Physical
Slot Width
IGP
Dual-slot
Length
—
170 mm
6.7 inches
Outputs
Portable Device Dependent
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
—
Pirate Islands
Successor
—
Polaris