AMD Radeon Pro W6900X vs AMD Radeon HD 7870 XT
GPU Specs Compare
Graphics Card
Release Date
Aug 2021
Nov 2012
Generation
Radeon Pro Mac
Southern Islands
Type
Desktop
Desktop
Bus Interface
PCIe 4.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
1825 MHz
925 MHz
Boost Clock
2150 MHz
975 MHz
Memory Clock
2000 MHz
1500 MHz
Memory
Memory Size
32GB
2GB
Memory Type
GDDR6
GDDR5
Memory Bus
256bit
256bit
Bandwidth
512.0GB/s
192.0GB/s
Render Config
Compute Units
80
24
Shading Units
5120
1536
TMUs
320
96
ROPs
128
32
RT Cores
80
-
L1 Cache
128 KB per Array
16 KB (per CU)
L2 Cache
4 MB
512 KB
L3 Cache
128 MB
-
Theoretical Performance
Pixel Rate
275.2 GPixel/s
31.20 GPixel/s
Texture Rate
688.0 GTexel/s
93.60 GTexel/s
FP16 (half)
44.03 TFLOPS
-
FP32 (float)
22.02 TFLOPS
2.995 TFLOPS
FP64 (double)
1376 GFLOPS
748.8 GFLOPS
Graphics Processor
GPU Name
Navi 21
Tahiti
GPU Variant
Navi 21 Pro-XTA
Tahiti LE(215-0821122)
Architecture
RDNA 2.0
GCN 1.0
Foundry
TSMC
TSMC
Process Size
7 nm
28 nm
Transistors
26.8 billion
4.313 billion
Die Size
520 mm²
352 mm²
Board Design
TDP
300W
185W
Suggested PSU
700 W
450 W
Outputs
1x HDMI 2.14x Thunderbolt
1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
Power Connectors
None
2x 6-pin
Graphics Features
DirectX
12 Ultimate (12_2)
12 (11_1)
OpenGL
4.6
4.6
OpenCL
2.1
1.2
Vulkan
1.3
1.2
Shader Model
6.5
5.1