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GPU Comparison
AMD Radeon HD 6870 vs AMD Radeon Pro V420
AMD Radeon HD 6870 vs AMD Radeon Pro V420
VS
AMD Radeon HD 6870
AMD Radeon Pro V420
We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6870 and 32GB VRAM AMD Radeon Pro V420 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon HD 6870 's Advantages
Lower TDP (151W vs 300W)
AMD Radeon Pro V420 's Advantages
Boost Clock1700MHz
More VRAM (32GB vs 1GB)
Larger VRAM bandwidth (819.2GB/s vs 134.4GB/s)
2976 additional rendering cores
Score
Benchmark
FP32 (float)
Radeon HD 6870
2.016 TFLOPS
AMD Radeon Pro V420
+590%
13.93 TFLOPS
Radeon HD 6870
VS
AMD Radeon Pro V420
Graphics Card
Oct 2010
Release Date
Unknown
Northern Islands
Generation
Radeon Pro Vega
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 4.0 x16
Clock Speeds
-
Base Clock
800 MHz
-
Boost Clock
1700 MHz
1050 MHz
Memory Clock
800 MHz
Memory
1024MB
Memory Size
32GB
GDDR5
Memory Type
HBM2
256bit
Memory Bus
4096bit
134.4GB/s
Bandwidth
819.2GB/s
Render Config
-
SM Count
-
14
Compute Units
64
1120
Shading Units
4096
56
TMUs
256
32
ROPs
64
-
Tensor Cores
-
-
RT Cores
-
8 KB (per CU)
L1 Cache
16 KB (per CU)
512 KB
L2 Cache
4 MB
Theoretical Performance
28.80 GPixel/s
Pixel Rate
108.8 GPixel/s
50.40 GTexel/s
Texture Rate
435.2 GTexel/s
-
FP16 (half)
27.85 TFLOPS
2.016 TFLOPS
FP32 (float)
13.93 TFLOPS
-
FP64 (double)
6.963 TFLOPS
Graphics Processor
Barts
GPU Name
Vega 20
Barts XT (215-0798000)
GPU Variant
Vega 20 GLXT WS (215-0914026)
TeraScale 2
Architecture
GCN 5.1
TSMC
Foundry
TSMC
40 nm
Process Size
7 nm
1.7 billion
Transistors
13.23 billion
255 mm²
Die Size
331 mm²
Board Design
151W
TDP
300W
450 W
Suggested PSU
700 W
2x DVI 1x HDMI 1.3a 2x mini-DisplayPort 1.1
Outputs
6x mini-DisplayPort 1.4a
2x 6-pin
Power Connectors
1x 6-pin + 1x 8-pin
Graphics Features
11.2 (11_0)
DirectX
12 (12_1)
4.4
OpenGL
4.6
1.2
OpenCL
2.1
N/A
Vulkan
1.3
-
CUDA
-
5.0
Shader Model
6.7
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