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GPU Comparison
AMD Radeon R9 380 OEM vs AMD Radeon R9 285X
AMD Radeon R9 380 OEM vs AMD Radeon R9 285X
VS
AMD Radeon R9 380 OEM
AMD Radeon R9 285X
We compared two Desktop platform GPUs: 4GB VRAM Radeon R9 380 OEM and 3GB VRAM Radeon R9 285X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon R9 380 OEM 's Advantages
More VRAM (4GB vs 3GB)
Lower TDP (190W vs 200W)
AMD Radeon R9 285X 's Advantages
Larger VRAM bandwidth (264.0GB/s vs 176.0GB/s)
256 additional rendering cores
Score
Benchmark
FP32 (float)
Radeon R9 380 OEM
3.29 TFLOPS
Radeon R9 285X
+24%
4.104 TFLOPS
Radeon R9 380 OEM
VS
Radeon R9 285X
Graphics Card
May 2015
Release Date
Unknown
Pirate Islands
Generation
Volcanic Islands
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
-
Base Clock
-
-
Boost Clock
-
1375 MHz
Memory Clock
1375 MHz
Memory
4GB
Memory Size
3GB
GDDR5
Memory Type
GDDR5
256bit
Memory Bus
384bit
176.0GB/s
Bandwidth
264.0GB/s
Render Config
-
SM Count
-
28
Compute Units
32
1792
Shading Units
2048
112
TMUs
128
32
ROPs
32
-
Tensor Cores
-
-
RT Cores
-
16 KB (per CU)
L1 Cache
16 KB (per CU)
512 KB
L2 Cache
768 KB
Theoretical Performance
29.38 GPixel/s
Pixel Rate
32.06 GPixel/s
102.8 GTexel/s
Texture Rate
128.3 GTexel/s
3.290 TFLOPS
FP16 (half)
-
3.290 TFLOPS
FP32 (float)
4.104 TFLOPS
205.6 GFLOPS
FP64 (double)
-
Graphics Processor
Antigua
GPU Name
Tonga
Antigua PRO (215-0877000)
GPU Variant
Tonga XT (215-0851313)
GCN 3.0
Architecture
GCN 3.0
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
5 billion
Transistors
5 billion
366 mm²
Die Size
366 mm²
Board Design
190W
TDP
200W
450 W
Suggested PSU
550 W
2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2
Outputs
2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2
2x 6-pin
Power Connectors
1x 6-pin + 1x 8-pin
Graphics Features
12 (12_0)
DirectX
12 (12_0)
4.6
OpenGL
4.6
2.0
OpenCL
2.0
1.2
Vulkan
1.2
-
CUDA
-
6.3
Shader Model
6.3
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