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 RX 6600 LE
CORE STATE
Navi 23
VRAM
8 GB
CLOCK SPEED
2495 MHz
TDP
132 W
BUS WIDTH
128 bit
ARCHITECTURE
RDNA 2.0
PROCESS
7 nm
LAUNCH DATE
2023
PERFORMANCE BENCHMARKS
geekbench_metal
geekbench_opencl
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
Pro 555
RX 6600 LE
Core Specs
Shading Units
768
1,792
+133.3%
Shaders
768
1,792
+133.3%
TMUs
48
112
+133.3%
ROPs
16
64
+300.0%
Compute Units
12
28
+133.3%
Clocks
Base Clock
—
1626 MHz
Boost Clock
—
2495 MHz
GPU Clock
850 MHz
—
Game Clock
—
2045 MHz
Memory Clock
1275 MHz
5.1 Gbps effective
1750 MHz
14 Gbps effective
Memory
Memory Size
2 GB
8 GB
VRAM (MB)
2,048
8,192
+300.0%
Memory Type
GDDR5
GDDR6
Memory Bus
128 bit
128 bit
Bandwidth
81.60 GB/s
224.0 GB/s
Cache
L1 Cache
16 KB (per CU)
128 KB per Array
L2 Cache
1024 KB
2 MB
L3 Cache
—
32 MB
L0 Cache
—
32 KB per WGP
Performance
Pixel Rate
13.60 GPixel/s
159.7 GPixel/s
Texture Rate
40.80 GTexel/s
279.4 GTexel/s
FP32 (TFLOPS)
1,305.6 GFLOPS
8.942 TFLOPS
FP64 (TFLOPS)
81.60 GFLOPS (1:16)
558.9 GFLOPS (1:16)
FP16 (TFLOPS)
1,305.6 GFLOPS (1:1)
17.88 TFLOPS (2:1)
AI/RT
RT Cores
—
28
Power
TDP
75 W
132 W
TDP (W)
75
132
+76.0%
Suggested PSU
—
300 W
Power Connectors
None
1x 8-pin
Architecture
Architecture
GCN 4.0
RDNA 2.0
GPU Name
Polaris 21
Navi 23
Generation
Radeon Pro Mac
(500 Series)
Navi II
(RX 6000)
Process Size
14 nm
7 nm
Transistors
3,000 million
11,060 million
Die Size
123 mm²
237 mm²
Foundry
GlobalFoundries
TSMC
Density
24.4M / mm²
46.7M / mm²
API Support
DirectX
12 (12_0)
12 Ultimate (12_2)
OpenGL
4.6
4.6
Vulkan
1.3
1.4
OpenCL
2.1
2.1
Shader Model
6.7
6.8
Physical
Slot Width
IGP
Dual-slot
Length
—
190 mm
7.5 inches
Height
—
110 mm
4.3 inches
Outputs
Portable Device Dependent
1x HDMI 2.13x DisplayPort 1.4a
Bus Interface
PCIe 3.0 x8
PCIe 4.0 x8
Other
Production
End-of-life
Active
Predecessor
—
Navi
Successor
—
Navi III