GPU Comparison
RADEON
AMD Radeon Pro 555
CORE STATE
Polaris 21
VRAM
2 GB
CLOCK SPEED
—
TDP
75 W
BUS WIDTH
128 bit
ARCHITECTURE
GCN 4.0
PROCESS
14 nm
LAUNCH DATE
2017
VS
RADEON
Radeon R9 M290X
CORE STATE
Neptune
VRAM
4 GB
CLOCK SPEED
900 MHz
TDP
100 W
BUS WIDTH
256 bit
ARCHITECTURE
GCN 1.0
PROCESS
28 nm
LAUNCH DATE
2014
PERFORMANCE BENCHMARKS
geekbench_metal
geekbench_opencl
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
Pro 555
R9 M290X
Core Specs
Shading Units
768
1,280
+66.7%
Shaders
768
1,280
+66.7%
TMUs
48
80
+66.7%
ROPs
16
32
+100.0%
Compute Units
12
20
+66.7%
Clocks
Base Clock
—
850 MHz
Boost Clock
—
900 MHz
GPU Clock
850 MHz
—
Memory Clock
1275 MHz
5.1 Gbps effective
1200 MHz
4.8 Gbps effective
Memory
Memory Size
2 GB
4 GB
VRAM (MB)
2,048
4,096
+100.0%
Memory Type
GDDR5
GDDR5
Memory Bus
128 bit
256 bit
Bandwidth
81.60 GB/s
153.6 GB/s
Cache
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
1024 KB
512 KB
Performance
Pixel Rate
13.60 GPixel/s
28.80 GPixel/s
Texture Rate
40.80 GTexel/s
72.00 GTexel/s
FP32 (TFLOPS)
1,305.6 GFLOPS
2.304 TFLOPS
FP64 (TFLOPS)
81.60 GFLOPS (1:16)
144.0 GFLOPS (1:16)
FP16 (TFLOPS)
1,305.6 GFLOPS (1:1)
—
Power
TDP
75 W
100 W
TDP (W)
75
100
+33.3%
Power Connectors
None
None
Architecture
Architecture
GCN 4.0
GCN 1.0
GPU Name
Polaris 21
Neptune
Generation
Radeon Pro Mac
(500 Series)
Gem System
(R9 M200)
Process Size
14 nm
28 nm
Transistors
3,000 million
2,800 million
Die Size
123 mm²
212 mm²
Foundry
GlobalFoundries
TSMC
Density
24.4M / mm²
13.2M / mm²
API Support
DirectX
12 (12_0)
12 (11_1)
OpenGL
4.6
4.6
Vulkan
1.3
1.2.170
OpenCL
2.1
2.1 (1.2)
Shader Model
6.7
6.5 (5.1)
Physical
Slot Width
IGP
MXM Module
Outputs
Portable Device Dependent
Portable Device Dependent
Bus Interface
PCIe 3.0 x8
PCIe 3.0 x16
Other
Production
End-of-life
End-of-life
Predecessor
—
Solar System
Successor
—
Polaris Mobile