GPU Comparison
RADEON
AMD Radeon Pro Vega 20
CORE STATE
Vega 12
VRAM
4 GB
CLOCK SPEED
1283 MHz
TDP
100 W
BUS WIDTH
1024 bit
ARCHITECTURE
GCN 5.0
PROCESS
14 nm
LAUNCH DATE
2018
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_metal
geekbench_opencl
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
Pro Vega 20
R5 M255
Core Specs
Shading Units
1,280
384
-70.0%
Shaders
1,280
384
-70.0%
TMUs
80
24
-70.0%
ROPs
32
8
-75.0%
Compute Units
20
6
-70.0%
Clocks
Base Clock
815 MHz
925 MHz
Boost Clock
1283 MHz
940 MHz
Memory Clock
740 MHz
1480 Mbps effective
1000 MHz
2 Gbps effective
Memory
Memory Size
4 GB
2 GB
VRAM (MB)
4,096
2,048
-50.0%
Memory Type
HBM2
DDR3
Memory Bus
1024 bit
128 bit
Bandwidth
189.4 GB/s
32.00 GB/s
Cache
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
1024 KB
256 KB
Performance
Pixel Rate
41.06 GPixel/s
7.520 GPixel/s
Texture Rate
102.6 GTexel/s
22.56 GTexel/s
FP32 (TFLOPS)
3.284 TFLOPS
721.9 GFLOPS
FP64 (TFLOPS)
205.3 GFLOPS (1:16)
45.12 GFLOPS (1:16)
FP16 (TFLOPS)
6.569 TFLOPS (2:1)
721.9 GFLOPS (1:1)
Power
TDP
100 W
—
TDP (W)
100
—
Architecture
Architecture
GCN 5.0
GCN 3.0
GPU Name
Vega 12
Topaz
Generation
Radeon Pro Mac
(Vega Series)
Gem System
(R5 M200)
Process Size
14 nm
28 nm
Transistors
—
1,550 million
Die Size
—
125 mm²
Foundry
GlobalFoundries
TSMC
Density
—
12.4M / mm²
API Support
DirectX
12 (12_1)
12 (12_0)
OpenGL
4.6
4.6
Vulkan
1.3
1.2.170
OpenCL
2.1
2.1
Shader Model
6.0
6.5
Physical
Slot Width
IGP
—
Outputs
Portable Device Dependent
—
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x8
Other
Production
End-of-life
End-of-life
Predecessor
—
Solar System
Successor
—
Polaris Mobile