AMD Radeon HD 6990 vs AMD Radeon Pro W6800X Duo
GPU Specs Compare
Graphics Card
Release Date
Mar 2011
Aug 2021
Generation
Northern Islands
Radeon Pro Mac
Type
Desktop
Desktop
Bus Interface
PCIe 2.0 x16
Apple MPX
Clock Speeds
Memory Clock
1250 MHz
2000 MHz
Base Clock
-
1800 MHz
Boost Clock
-
1967 MHz
Memory
Memory Size
2GB
32GB
Memory Type
GDDR5
GDDR6
Memory Bus
256bit
256bit
Bandwidth
160.0GB/s
512.0GB/s
Render Config
Compute Units
24
60
Shading Units
1536
3840
TMUs
96
240
ROPs
32
96
L1 Cache
8 KB (per CU)
128 KB per Array
L2 Cache
512 KB
4 MB
RT Cores
-
60
L3 Cache
-
128 MB
Theoretical Performance
Pixel Rate
26.56 GPixel/s
188.8 GPixel/s
Texture Rate
79.68 GTexel/s
472.1 GTexel/s
FP32 (float)
2.550 TFLOPS
15.11 TFLOPS
FP64 (double)
637.4 GFLOPS
944.2 GFLOPS
FP16 (half)
-
30.21 TFLOPS
Graphics Processor
GPU Name
Antilles
Navi 21
GPU Variant
Antilles XT(215-0807027)
Navi 21 Pro-XLA
Architecture
TeraScale 3
RDNA 2.0
Foundry
TSMC
TSMC
Process Size
40 nm
7 nm
Transistors
2.64 billion
26.8 billion
Die Size
389 mm²
520 mm²
Board Design
TDP
375W
400W
Suggested PSU
750 W
800 W
Outputs
1x DVI4x mini-DisplayPort 1.2
1x HDMI 2.14x Thunderbolt
Power Connectors
2x 8-pin
None
Graphics Features
DirectX
11.2 (11_0)
12 Ultimate (12_2)
OpenGL
4.4
4.6
OpenCL
1.2
2.1
Vulkan
N/A
1.3
Shader Model
5.0
6.7
📊 Benchmark
Blender
-
1,422