GPU Comparison
RADEON
AMD Radeon Pro W6800X
CORE STATE
Navi 21
VRAM
32 GB
CLOCK SPEED
2087 MHz
TDP
200 W
BUS WIDTH
256 bit
ARCHITECTURE
RDNA 2.0
PROCESS
7 nm
LAUNCH DATE
2021
VS
RADEON
Radeon R6 M255DX
CORE STATE
Jet
VRAM
System Shared
CLOCK SPEED
855 MHz
TDP
—
BUS WIDTH
System Shared
ARCHITECTURE
GCN 1.0
PROCESS
28 nm
LAUNCH DATE
2014
PERFORMANCE BENCHMARKS
geekbench_metal
geekbench_opencl
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
Pro W6800X
R6 M255DX
Core Specs
Shading Units
3,840
320
-91.7%
Shaders
3,840
320
-91.7%
TMUs
240
20
-91.7%
ROPs
96
8
-91.7%
Compute Units
60
5
-91.7%
Clocks
Base Clock
1800 MHz
780 MHz
Boost Clock
2087 MHz
855 MHz
Memory Clock
2000 MHz
16 Gbps effective
System Shared
Memory
Memory Size
32 GB
System Shared
VRAM (MB)
32,768
—
Memory Type
GDDR6
System Shared
Memory Bus
256 bit
System Shared
Bandwidth
512.0 GB/s
System Dependent
Cache
L1 Cache
128 KB per Array
16 KB (per CU)
L2 Cache
4 MB
128 KB
L3 Cache
128 MB
—
L0 Cache
32 KB per WGP
—
Performance
Pixel Rate
200.4 GPixel/s
6.840 GPixel/s
Texture Rate
500.9 GTexel/s
17.10 GTexel/s
FP32 (TFLOPS)
16.03 TFLOPS
547.2 GFLOPS
FP64 (TFLOPS)
1,001.8 GFLOPS (1:16)
34.20 GFLOPS (1:16)
FP16 (TFLOPS)
32.06 TFLOPS (2:1)
—
AI/RT
RT Cores
60
—
Power
TDP
200 W
—
TDP (W)
200
—
Suggested PSU
550 W
—
Power Connectors
Apple MPX
—
Architecture
Architecture
RDNA 2.0
GCN 1.0
GPU Name
Navi 21
Jet
Generation
Radeon Pro Mac
(Navi II Series)
Gem System Hybrid
(Rx M200)
Process Size
7 nm
28 nm
Transistors
26,800 million
690 million
Die Size
520 mm²
56 mm²
Foundry
TSMC
TSMC
Density
51.5M / mm²
12.3M / mm²
API Support
DirectX
12 Ultimate (12_2)
12 (11_1)
OpenGL
4.6
4.6
Vulkan
1.4
1.2.170
OpenCL
2.1
2.1 (1.2)
Shader Model
6.8
6.5 (5.1)
Physical
Slot Width
Quad-slot
IGP
Length
267 mm
10.5 inches
—
Height
120 mm
4.7 inches
—
Outputs
1x HDMI 2.14x Thunderbolt
Portable Device Dependent
Bus Interface
Apple MPX
IGP
Other
Launch Price
2,799 USD
—
Production
End-of-life
End-of-life