Home GPU Comparison AMD Radeon Pro W6900X vs AMD Radeon HD 7870 XT

AMD Radeon Pro W6900X vs AMD Radeon HD 7870 XT

We compared two Desktop platform GPUs: 32GB VRAM Radeon Pro W6900X and 2GB VRAM Radeon HD 7870 XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon Pro W6900X 's Advantages
Released 8 years and 9 months late
Boost Clock has increased by 121% (2150MHz vs 975MHz)
More VRAM (32GB vs 2GB)
Larger VRAM bandwidth (512.0GB/s vs 192.0GB/s)
3584 additional rendering cores
AMD Radeon HD 7870 XT 's Advantages
Lower TDP (185W vs 300W)

Score

Benchmark

FP32 (float)
Radeon Pro W6900X +635%
22.02 TFLOPS
Radeon HD 7870 XT
2.995 TFLOPS
VS

Graphics Card

Aug 2021
Release Date
Nov 2012
Radeon Pro Mac
Generation
Southern Islands
Desktop
Type
Desktop
PCIe 4.0 x16
Bus Interface
PCIe 3.0 x16

Clock Speeds

1825 MHz
Base Clock
925 MHz
2150 MHz
Boost Clock
975 MHz
2000 MHz
Memory Clock
1500 MHz

Memory

32GB
Memory Size
2GB
GDDR6
Memory Type
GDDR5
256bit
Memory Bus
256bit
512.0GB/s
Bandwidth
192.0GB/s

Render Config

80
Compute Units
24
-
-
-
5120
Shading Units
1536
320
TMUs
96
128
ROPs
32
-
-
-
80
RT Cores
-
128 KB per Array
L1 Cache
16 KB (per CU)
4 MB
L2 Cache
512 KB
128 MB
L3 Cache
-

Theoretical Performance

275.2 GPixel/s
Pixel Rate
31.20 GPixel/s
688.0 GTexel/s
Texture Rate
93.60 GTexel/s
44.03 TFLOPS
FP16 (half)
-
22.02 TFLOPS
FP32 (float)
2.995 TFLOPS
1376 GFLOPS
FP64 (double)
748.8 GFLOPS

Board Design

300W
TDP
185W
700 W
Suggested PSU
450 W
1x HDMI 2.1 4x Thunderbolt
Outputs
1x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2
None
Power Connectors
2x 6-pin

Graphics Processor

Navi 21
GPU Name
Tahiti
Navi 21 Pro-XTA
GPU Variant
Tahiti LE (215-0821122)
RDNA 2.0
Architecture
GCN 1.0
TSMC
Foundry
TSMC
7 nm
Process Size
28 nm
26.8 billion
Transistors
4.313 billion
520 mm²
Die Size
352 mm²

Graphics Features

12 Ultimate (12_2)
DirectX
12 (11_1)
4.6
OpenGL
4.6
2.1
OpenCL
1.2
1.3
Vulkan
1.2
-
-
-
6.5
Shader Model
5.1

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