AMD Radeon Pro W6800X vs AMD Radeon HD 6850 1440SP Edition
We compared two Desktop platform GPUs: 32GB VRAM Radeon Pro W6800X and 1024MB VRAM Radeon HD 6850 1440SP Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon Pro W6800X 's Advantages
Released 9 years late
Boost Clock2087MHz
More VRAM (32GB vs 1024GB)
Larger VRAM bandwidth (512.0GB/s vs 128.0GB/s)
2400 additional rendering cores
AMD Radeon HD 6850 1440SP Edition 's Advantages
Lower TDP (151W vs 200W)
Score
Benchmark
FP32 (float)
Radeon Pro W6800X
+667%
16.03 TFLOPS
Radeon HD 6850 1440SP Edition
2.088 TFLOPS
Graphics Card
Aug 2021
Release Date
Aug 2012
Radeon Pro Mac
Generation
Northern Islands
Desktop
Type
Desktop
Apple MPX
Bus Interface
PCIe 2.0 x16
Clock Speeds
1800 MHz
Base Clock
-
2087 MHz
Boost Clock
-
2000 MHz
Memory Clock
1000 MHz
Memory
32GB
Memory Size
1024MB
GDDR6
Memory Type
GDDR5
256bit
Memory Bus
256bit
512.0GB/s
Bandwidth
128.0GB/s
Render Config
60
Compute Units
18
-
-
-
3840
Shading Units
1440
240
TMUs
72
96
ROPs
32
-
-
-
60
RT Cores
-
128 KB per Array
L1 Cache
8 KB (per CU)
4 MB
L2 Cache
512 KB
128 MB
L3 Cache
-
Theoretical Performance
200.4 GPixel/s
Pixel Rate
23.20 GPixel/s
500.9 GTexel/s
Texture Rate
52.20 GTexel/s
32.06 TFLOPS
FP16 (half)
-
16.03 TFLOPS
FP32 (float)
2.088 TFLOPS
1002 GFLOPS
FP64 (double)
417.6 GFLOPS
Board Design
200W
TDP
151W
550 W
Suggested PSU
450 W
1x HDMI 2.1
4x Thunderbolt
Outputs
2x DVI
1x HDMI 1.3a
1x DisplayPort 1.1
Apple MPX
Power Connectors
2x 6-pin
Graphics Processor
Navi 21
GPU Name
Cypress
Navi 21 Pro-XLA
GPU Variant
Cypress PRO
(215-0735043)
RDNA 2.0
Architecture
TeraScale 2
TSMC
Foundry
TSMC
7 nm
Process Size
40 nm
26.8 billion
Transistors
2.154 billion
520 mm²
Die Size
334 mm²
Graphics Features
12 Ultimate (12_2)
DirectX
11.2 (11_0)
4.6
OpenGL
4.4
2.1
OpenCL
1.2
1.3
Vulkan
N/A
-
-
-
6.7
Shader Model
5.0
