AMD Radeon R9 270X vs AMD Radeon R9 M395X
GPU · Specs Compare
Graphics Card
Release Date
Oct 2013
May 2015
Generation
Volcanic Islands
Crystal System
Type
Desktop
Mobile
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
1000 MHz
—
Boost Clock
1050 MHz
—
Memory Clock
1400 MHz
1250 MHz
Memory
Memory Size
2GB
8GB
Memory Type
GDDR5
GDDR5
Memory Bus
256bit
256bit
Bandwidth
179.2GB/s
160.0GB/s
Render Config
Compute Units
20
32
Shading Units
1280
2048
TMUs
80
128
ROPs
32
32
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
512 KB
512 KB
Theoretical Performance
Pixel Rate
33.60 GPixel/s
23.14 GPixel/s
Texture Rate
84.00 GTexel/s
92.54 GTexel/s
FP32 (float)
2.688 TFLOPS
2.961 TFLOPS
FP64 (double)
168.0 GFLOPS
185.1 GFLOPS
FP16 (half)
—
2.961 TFLOPS
Graphics Processor
GPU Name
Curacao
Amethyst
GPU Variant
Curacao XT(215-0848004)
Amethyst XT
Architecture
GCN 1.0
GCN 3.0
Foundry
TSMC
TSMC
Process Size
28 nm
28 nm
Transistors
2.8 billion
5 billion
Die Size
212 mm²
366 mm²
Board Design
TDP
180W
75W
Suggested PSU
450 W
—
Outputs
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
No outputs
Power Connectors
2x 6-pin
None
Graphics Features
DirectX
12 (11_1)
12 (12_0)
OpenGL
4.6
4.6
OpenCL
1.2
2.0
Vulkan
1.2
1.2
Shader Model
5.1
6.3
Benchmark
3DMark Time Spy
1,769
2,514
▲ Specs Compare
Data sourced from official specifications and benchmark tests.