Home GPU Comparison AMD Radeon R9 Nano vs AMD Radeon R9 255 OEM

AMD Radeon R9 Nano vs 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
VS

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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