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GPU Comparison
AMD Radeon 550X 640SP vs ATI Radeon HD 3870 X2
AMD Radeon 550X 640SP vs ATI Radeon HD 3870 X2
VS
AMD Radeon 550X 640SP
ATI Radeon HD 3870 X2
We compared two Desktop platform GPUs: 4GB VRAM Radeon 550X 640SP and 512MB VRAM Radeon HD 3870 X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon 550X 640SP 's Advantages
Released 10 years and 3 months late
Boost Clock1071MHz
320 additional rendering cores
Lower TDP (50W vs 165W)
ATI Radeon HD 3870 X2 's Advantages
Larger VRAM bandwidth (57.66GB/s vs 48.00GB/s)
Score
Benchmark
FP32 (float)
Radeon 550X 640SP
+159%
1.371 TFLOPS
Radeon HD 3870 X2
0.528 TFLOPS
Radeon 550X 640SP
VS
Radeon HD 3870 X2
Graphics Card
Apr 2018
Release Date
Jan 2008
Polaris
Generation
Radeon R600
Desktop
Type
Desktop
PCIe 3.0 x8
Bus Interface
PCIe 2.0 x16
Clock Speeds
1019 MHz
Base Clock
-
1071 MHz
Boost Clock
-
1500 MHz
Memory Clock
901 MHz
Memory
4GB
Memory Size
512MB
GDDR5
Memory Type
GDDR3
64bit
Memory Bus
256bit
48.00GB/s
Bandwidth
57.66GB/s
Render Config
-
SM Count
-
10
Compute Units
4
640
Shading Units
320
40
TMUs
16
16
ROPs
16
-
Tensor Cores
-
-
RT Cores
-
16 KB (per CU)
L1 Cache
-
256 KB
L2 Cache
256 KB
Theoretical Performance
17.14 GPixel/s
Pixel Rate
13.20 GPixel/s
42.84 GTexel/s
Texture Rate
13.20 GTexel/s
1371 GFLOPS
FP16 (half)
-
1371 GFLOPS
FP32 (float)
528.0 GFLOPS
85.68 GFLOPS
FP64 (double)
105.6 GFLOPS
Graphics Processor
Lexa
GPU Name
R680
Lexa PRO (215-0904018)
GPU Variant
R680 XT (215-0708017)
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
165W
250 W
Suggested PSU
450 W
1x DVI 1x HDMI 2.0b 1x DisplayPort 1.4a
Outputs
2x DVI 1x S-Video
None
Power Connectors
1x 6-pin + 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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4
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5
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7
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9
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