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GPU Comparison
AMD Radeon RX 550X vs AMD Radeon HD 6870
AMD Radeon RX 550X vs AMD Radeon HD 6870
VS
AMD Radeon RX 550X
AMD Radeon HD 6870
We compared two Desktop platform GPUs: 4GB VRAM Radeon RX 550X and 1024MB VRAM Radeon HD 6870 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon RX 550X 's Advantages
Released 8 years and 2 months late
Boost Clock1183MHz
More VRAM (4GB vs 1GB)
Lower TDP (50W vs 151W)
AMD Radeon HD 6870 's Advantages
Larger VRAM bandwidth (134.4GB/s vs 96.00GB/s)
608 additional rendering cores
Score
Benchmark
FP32 (float)
Radeon RX 550X
1.211 TFLOPS
Radeon HD 6870
+66%
2.016 TFLOPS
Radeon RX 550X
VS
Radeon HD 6870
Graphics Card
Dec 2018
Release Date
Oct 2010
Polaris
Generation
Northern Islands
Desktop
Type
Desktop
PCIe 3.0 x8
Bus Interface
PCIe 2.0 x16
Clock Speeds
1100 MHz
Base Clock
-
1183 MHz
Boost Clock
-
1500 MHz
Memory Clock
1050 MHz
Memory
4GB
Memory Size
1024MB
GDDR5
Memory Type
GDDR5
128bit
Memory Bus
256bit
96.00GB/s
Bandwidth
134.4GB/s
Render Config
-
SM Count
-
8
Compute Units
14
512
Shading Units
1120
32
TMUs
56
16
ROPs
32
-
Tensor Cores
-
-
RT Cores
-
16 KB (per CU)
L1 Cache
8 KB (per CU)
512 KB
L2 Cache
512 KB
Theoretical Performance
18.93 GPixel/s
Pixel Rate
28.80 GPixel/s
37.86 GTexel/s
Texture Rate
50.40 GTexel/s
1211 GFLOPS
FP16 (half)
-
1211 GFLOPS
FP32 (float)
2.016 TFLOPS
75.71 GFLOPS
FP64 (double)
-
Graphics Processor
Lexa
GPU Name
Barts
Lexa PRO (215-0904018)
GPU Variant
Barts XT (215-0798000)
GCN 4.0
Architecture
TeraScale 2
GlobalFoundries
Foundry
TSMC
14 nm
Process Size
40 nm
2.2 billion
Transistors
1.7 billion
103 mm²
Die Size
255 mm²
Board Design
50W
TDP
151W
250 W
Suggested PSU
450 W
1x DVI 1x HDMI 2.0b 1x DisplayPort 1.4a
Outputs
2x DVI 1x HDMI 1.3a 2x mini-DisplayPort 1.1
None
Power Connectors
2x 6-pin
Graphics Features
12 (12_0)
DirectX
11.2 (11_0)
4.6
OpenGL
4.4
2.1
OpenCL
1.2
1.2
Vulkan
N/A
-
CUDA
-
6.4
Shader Model
5.0
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