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GPU Comparison
AMD Radeon HD 6870 vs AMD Radeon RX 550
AMD Radeon HD 6870 vs AMD Radeon RX 550
VS
AMD Radeon HD 6870
AMD Radeon RX 550
We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6870 and 2GB VRAM Radeon RX 550 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon HD 6870 's Advantages
Larger VRAM bandwidth (134.4GB/s vs 112.0GB/s)
608 additional rendering cores
AMD Radeon RX 550 's Advantages
Released 6 years and 6 months late
Boost Clock1183MHz
More VRAM (2GB vs 1GB)
Lower TDP (50W vs 151W)
Score
Benchmark
FP32 (float)
Radeon HD 6870
+66%
2.016 TFLOPS
Radeon RX 550
1.211 TFLOPS
Radeon HD 6870
VS
Radeon RX 550
Graphics Card
Oct 2010
Release Date
Apr 2017
Northern Islands
Generation
Polaris
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 3.0 x8
Clock Speeds
-
Base Clock
1100 MHz
-
Boost Clock
1183 MHz
1050 MHz
Memory Clock
1750 MHz
Memory
1024MB
Memory Size
2GB
GDDR5
Memory Type
GDDR5
256bit
Memory Bus
128bit
134.4GB/s
Bandwidth
112.0GB/s
Render Config
-
SM Count
-
14
Compute Units
8
1120
Shading Units
512
56
TMUs
32
32
ROPs
16
-
Tensor Cores
-
-
RT Cores
-
8 KB (per CU)
L1 Cache
16 KB (per CU)
512 KB
L2 Cache
512 KB
Theoretical Performance
28.80 GPixel/s
Pixel Rate
18.93 GPixel/s
50.40 GTexel/s
Texture Rate
37.86 GTexel/s
-
FP16 (half)
1211 GFLOPS
2.016 TFLOPS
FP32 (float)
1211 GFLOPS
-
FP64 (double)
75.71 GFLOPS
Graphics Processor
Barts
GPU Name
Lexa
Barts XT (215-0798000)
GPU Variant
Lexa PRO (215-0904018)
TeraScale 2
Architecture
GCN 4.0
TSMC
Foundry
GlobalFoundries
40 nm
Process Size
14 nm
1.7 billion
Transistors
2.2 billion
255 mm²
Die Size
103 mm²
Board Design
151W
TDP
50W
450 W
Suggested PSU
250 W
2x DVI 1x HDMI 1.3a 2x mini-DisplayPort 1.1
Outputs
1x DVI 1x HDMI 2.0b 1x DisplayPort 1.4a
2x 6-pin
Power Connectors
None
Graphics Features
11.2 (11_0)
DirectX
12 (12_0)
4.4
OpenGL
4.6
1.2
OpenCL
2.1
N/A
Vulkan
1.2
-
CUDA
-
5.0
Shader Model
6.4
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