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GPU Comparison
AMD Radeon RX 550X vs ATI Radeon HD 3870 AGP
AMD Radeon RX 550X vs ATI Radeon HD 3870 AGP
VS
AMD Radeon RX 550X
ATI Radeon HD 3870 AGP
We compared two Desktop platform GPUs: 4GB VRAM Radeon RX 550X and 512MB VRAM Radeon HD 3870 AGP to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon RX 550X 's Advantages
Boost Clock1183MHz
Larger VRAM bandwidth (96.00GB/s vs 72.06GB/s)
192 additional rendering cores
Lower TDP (50W vs 106W)
Score
Benchmark
FP32 (float)
Radeon RX 550X
+143%
1.211 TFLOPS
Radeon HD 3870 AGP
0.497 TFLOPS
Radeon RX 550X
VS
Radeon HD 3870 AGP
Graphics Card
Dec 2018
Release Date
Unknown
Polaris
Generation
Radeon R600
Desktop
Type
Desktop
PCIe 3.0 x8
Bus Interface
AGP 8x
Clock Speeds
1100 MHz
Base Clock
-
1183 MHz
Boost Clock
-
1500 MHz
Memory Clock
1126 MHz
Memory
4GB
Memory Size
512MB
GDDR5
Memory Type
GDDR4
128bit
Memory Bus
256bit
96.00GB/s
Bandwidth
72.06GB/s
Render Config
-
SM Count
-
8
Compute Units
4
512
Shading Units
320
32
TMUs
16
16
ROPs
16
-
Tensor Cores
-
-
RT Cores
-
16 KB (per CU)
L1 Cache
-
512 KB
L2 Cache
256 KB
Theoretical Performance
18.93 GPixel/s
Pixel Rate
12.43 GPixel/s
37.86 GTexel/s
Texture Rate
12.43 GTexel/s
1211 GFLOPS
FP16 (half)
-
1211 GFLOPS
FP32 (float)
497.3 GFLOPS
75.71 GFLOPS
FP64 (double)
99.46 GFLOPS
Graphics Processor
Lexa
GPU Name
RV670
Lexa PRO (215-0904018)
GPU Variant
RV670 XT (215-0708005)
GCN 4.0
Architecture
TeraScale
GlobalFoundries
Foundry
TSMC
14 nm
Process Size
55 nm
2.2 billion
Transistors
0.666 billion
103 mm²
Die Size
192 mm²
Board Design
50W
TDP
106W
250 W
Suggested PSU
300 W
1x DVI 1x HDMI 2.0b 1x DisplayPort 1.4a
Outputs
2x DVI 1x S-Video
None
Power Connectors
1x 8-pin
Graphics Features
12 (12_0)
DirectX
10.1 (10_1)
4.6
OpenGL
3.3 (full) 4.0 (partial)
2.1
OpenCL
N/A
1.2
Vulkan
N/A
-
CUDA
-
6.4
Shader Model
4.1
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9
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