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
GEFORCE
RTX A4500
CORE STATE
GA102
VRAM
20 GB
CLOCK SPEED
1650 MHz
TDP
200 W
BUS WIDTH
320 bit
ARCHITECTURE
Ampere
PROCESS
8 nm
LAUNCH DATE
2021
PERFORMANCE BENCHMARKS
geekbench_metal
geekbench_opencl
geekbench_vulkan
3dmark_3dmark_steel_nomad_dx12
DETAILED SPECIFICATIONS
SPECIFICATION
Pro Vega 20
RTX A4500
Core Specs
Shading Units
1,280
7,168
+460.0%
Shaders
1,280
7,168
+460.0%
TMUs
80
224
+180.0%
ROPs
32
96
+200.0%
Compute Units
20
—
SM Count
—
56
Clocks
Base Clock
815 MHz
1050 MHz
Boost Clock
1283 MHz
1650 MHz
Memory Clock
740 MHz
1480 Mbps effective
2000 MHz
16 Gbps effective
Memory
Memory Size
4 GB
20 GB
VRAM (MB)
4,096
20,480
+400.0%
Memory Type
HBM2
GDDR6
Memory Bus
1024 bit
320 bit
Bandwidth
189.4 GB/s
640.0 GB/s
Cache
L1 Cache
16 KB (per CU)
128 KB (per SM)
L2 Cache
1024 KB
6 MB
Performance
Pixel Rate
41.06 GPixel/s
158.4 GPixel/s
Texture Rate
102.6 GTexel/s
369.6 GTexel/s
FP32 (TFLOPS)
3.284 TFLOPS
23.65 TFLOPS
FP64 (TFLOPS)
205.3 GFLOPS (1:16)
369.6 GFLOPS (1:64)
FP16 (TFLOPS)
6.569 TFLOPS (2:1)
23.65 TFLOPS (1:1)
AI/RT
RT Cores
—
56
Tensor Cores
—
224
Power
TDP
100 W
200 W
TDP (W)
100
200
+100.0%
Suggested PSU
—
550 W
Power Connectors
—
1x 8-pin
Architecture
Architecture
GCN 5.0
Ampere
GPU Name
Vega 12
GA102
Generation
Radeon Pro Mac
(Vega Series)
Workstation Ampere
(Ax000)
Process Size
14 nm
8 nm
Transistors
—
28,300 million
Die Size
—
628 mm²
Foundry
GlobalFoundries
Samsung
Density
—
45.1M / mm²
API Support
DirectX
12 (12_1)
12 Ultimate (12_2)
OpenGL
4.6
4.6
Vulkan
1.3
1.4
OpenCL
2.1
3.0
CUDA
—
8.6
Shader Model
6.0
6.8
Physical
Slot Width
IGP
Dual-slot
Length
—
267 mm
10.5 inches
Height
—
112 mm
4.4 inches
Outputs
Portable Device Dependent
4x DisplayPort 1.4a
Bus Interface
PCIe 3.0 x16
PCIe 4.0 x16
Other
Production
End-of-life
End-of-life
Predecessor
—
Quadro Turing
Successor
—
Workstation Ada