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GPU Comparison
AMD Radeon R9 Nano vs AMD Radeon R9 255 OEM
AMD Radeon R9 Nano vs AMD Radeon R9 255 OEM
VS
AMD Radeon R9 Nano
AMD Radeon R9 255 OEM
We compared two Desktop platform GPUs: 4GB VRAM Radeon R9 Nano and 2GB VRAM Radeon R9 255 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon R9 Nano 's Advantages
Released 1 years and 8 months late
More VRAM (4GB vs 2GB)
Larger VRAM bandwidth (512.0GB/s vs 73.60GB/s)
3584 additional rendering cores
AMD Radeon R9 255 OEM 's Advantages
Boost Clock930MHz
Lower TDP (65W vs 175W)
Score
Benchmark
FP32 (float)
Radeon R9 Nano
+760%
8.192 TFLOPS
Radeon R9 255 OEM
0.952 TFLOPS
Radeon R9 Nano
VS
Radeon R9 255 OEM
Graphics Card
Aug 2015
Release Date
Dec 2013
Pirate Islands
Generation
Volcanic Islands
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
-
Base Clock
900 MHz
-
Boost Clock
930 MHz
500 MHz
Memory Clock
1150 MHz
Memory
4GB
Memory Size
2GB
HBM
Memory Type
GDDR5
4096bit
Memory Bus
128bit
512.0GB/s
Bandwidth
73.60GB/s
Render Config
-
SM Count
-
64
Compute Units
8
4096
Shading Units
512
256
TMUs
32
64
ROPs
16
-
Tensor Cores
-
-
RT Cores
-
16 KB (per CU)
L1 Cache
16 KB (per CU)
2 MB
L2 Cache
256 KB
Theoretical Performance
64.00 GPixel/s
Pixel Rate
14.88 GPixel/s
256.0 GTexel/s
Texture Rate
29.76 GTexel/s
8.192 TFLOPS
FP16 (half)
-
8.192 TFLOPS
FP32 (float)
952.3 GFLOPS
512.0 GFLOPS
FP64 (double)
59.52 GFLOPS
Graphics Processor
Fiji
GPU Name
Cape Verde
Fiji XT CA (215-0862120)
GPU Variant
Cape Verde PRX
GCN 3.0
Architecture
GCN 1.0
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
8.9 billion
Transistors
1.5 billion
596 mm²
Die Size
123 mm²
Board Design
175W
TDP
65W
450 W
Suggested PSU
250 W
1x HDMI 1.4a 3x DisplayPort 1.2
Outputs
No outputs
1x 8-pin
Power Connectors
1x 6-pin
Graphics Features
12 (12_0)
DirectX
12 (11_1)
4.6
OpenGL
4.6
2.0
OpenCL
1.2
1.2
Vulkan
1.2
-
CUDA
-
6.3
Shader Model
5.1
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