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GPU Comparison
AMD Radeon R9 285X vs AMD Radeon RX 580
AMD Radeon R9 285X vs AMD Radeon RX 580
VS
AMD Radeon R9 285X
AMD Radeon RX 580
We compared two Desktop platform GPUs: 3GB VRAM Radeon R9 285X and 8GB VRAM Radeon RX 580 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon R9 285X 's Advantages
Larger VRAM bandwidth (264.0GB/s vs 256.0GB/s)
AMD Radeon RX 580 's Advantages
Boost Clock1340MHz
More VRAM (8GB vs 3GB)
256 additional rendering cores
Lower TDP (185W vs 200W)
Score
Benchmark
FP32 (float)
Radeon R9 285X
4.104 TFLOPS
Radeon RX 580
+50%
6.175 TFLOPS
Radeon R9 285X
VS
Radeon RX 580
Graphics Card
Unknown
Release Date
Apr 2017
Volcanic Islands
Generation
Polaris
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
-
Base Clock
1257 MHz
-
Boost Clock
1340 MHz
1375 MHz
Memory Clock
2000 MHz
Memory
3GB
Memory Size
8GB
GDDR5
Memory Type
GDDR5
384bit
Memory Bus
256bit
264.0GB/s
Bandwidth
256.0GB/s
Render Config
-
SM Count
-
32
Compute Units
36
2048
Shading Units
2304
128
TMUs
144
32
ROPs
32
-
Tensor Cores
-
-
RT Cores
-
16 KB (per CU)
L1 Cache
16 KB (per CU)
768 KB
L2 Cache
2 MB
Theoretical Performance
32.06 GPixel/s
Pixel Rate
42.88 GPixel/s
128.3 GTexel/s
Texture Rate
193.0 GTexel/s
-
FP16 (half)
6.175 TFLOPS
4.104 TFLOPS
FP32 (float)
6.175 TFLOPS
-
FP64 (double)
385.9 GFLOPS
Graphics Processor
Tonga
GPU Name
Polaris 20
Tonga XT (215-0851313)
GPU Variant
Polaris 20 XTX (215-0910038)
GCN 3.0
Architecture
GCN 4.0
TSMC
Foundry
GlobalFoundries
28 nm
Process Size
14 nm
5 billion
Transistors
5.7 billion
366 mm²
Die Size
232 mm²
Board Design
200W
TDP
185W
550 W
Suggested PSU
450 W
2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2
Outputs
1x HDMI 2.0b 3x DisplayPort 1.4a
1x 6-pin + 1x 8-pin
Power Connectors
1x 8-pin
Graphics Features
12 (12_0)
DirectX
12 (12_0)
4.6
OpenGL
4.6
2.0
OpenCL
2.1
1.2
Vulkan
1.2
-
CUDA
-
6.3
Shader Model
6.4
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