AMD Radeon HD 6870 X2 vs AMD Radeon Pro W6900X
GPU Specs Compare
Graphics Card
Release Date
Jul 2011
Aug 2021
Generation
Northern Islands
Radeon Pro Mac
Type
Desktop
Desktop
Bus Interface
PCIe 2.0 x16
PCIe 4.0 x16
Clock Speeds
Memory Clock
1050 MHz
2000 MHz
Base Clock
-
1825 MHz
Boost Clock
-
2150 MHz
Memory
Memory Size
1024MB
32GB
Memory Type
GDDR5
GDDR6
Memory Bus
256bit
256bit
Bandwidth
134.4GB/s
512.0GB/s
Render Config
Compute Units
14
80
Shading Units
1120
5120
TMUs
56
320
ROPs
32
128
L1 Cache
8 KB (per CU)
128 KB per Array
L2 Cache
512 KB
4 MB
RT Cores
-
80
L3 Cache
-
128 MB
Theoretical Performance
Pixel Rate
28.80 GPixel/s
275.2 GPixel/s
Texture Rate
50.40 GTexel/s
688.0 GTexel/s
FP32 (float)
2.016 TFLOPS
22.02 TFLOPS
FP16 (half)
-
44.03 TFLOPS
FP64 (double)
-
1376 GFLOPS
Graphics Processor
GPU Name
Barts
Navi 21
GPU Variant
Barts XT(215-0798000)
Navi 21 Pro-XTA
Architecture
TeraScale 2
RDNA 2.0
Foundry
TSMC
TSMC
Process Size
40 nm
7 nm
Transistors
1.7 billion
26.8 billion
Die Size
255 mm²
520 mm²
Board Design
TDP
300W
300W
Suggested PSU
700 W
700 W
Outputs
2x DVI1x HDMI 1.3a2x mini-DisplayPort 1.1
1x HDMI 2.14x Thunderbolt
Power Connectors
-
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
6.5