AMD Radeon R9 M295X Mac Edition vs AMD Radeon R9 280X
GPU · Specs Compare
Graphics Card
Release Date
Nov 2014
Oct 2013
Generation
Crystal System
Volcanic Islands
Type
Mobile
Desktop
Bus Interface
MXM-B (3.0)
PCIe 3.0 x16
Clock Speeds
Memory Clock
1362 MHz
1500 MHz
Base Clock
—
850 MHz
Boost Clock
—
1000 MHz
Memory
Memory Size
4GB
3GB
Memory Type
GDDR5
GDDR5
Memory Bus
256bit
384bit
Bandwidth
174.3GB/s
288.0GB/s
Render Config
Compute Units
32
32
Shading Units
2048
2048
TMUs
128
128
ROPs
32
32
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
512 KB
768 KB
Theoretical Performance
Pixel Rate
27.20 GPixel/s
32.00 GPixel/s
Texture Rate
108.8 GTexel/s
128.0 GTexel/s
FP16 (half)
3.482 TFLOPS
—
FP32 (float)
3.482 TFLOPS
4.096 TFLOPS
FP64 (double)
217.6 GFLOPS
1024 GFLOPS
Graphics Processor
GPU Name
Amethyst
Tahiti
GPU Variant
Amethyst XT
Tahiti XTL(215-0821065)
Architecture
GCN 3.0
GCN 1.0
Foundry
TSMC
TSMC
Process Size
28 nm
28 nm
Transistors
5 billion
4.313 billion
Die Size
366 mm²
352 mm²
Board Design
TDP
250W
250W
Outputs
No outputs
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
Suggested PSU
—
600 W
Power Connectors
—
1x 6-pin + 1x 8-pin
Graphics Features
DirectX
12 (12_0)
12 (11_1)
OpenGL
4.6
4.6
OpenCL
2.0
1.2
Vulkan
1.2
1.2
Shader Model
6.3
5.1
▲ Specs Compare
Data sourced from official specifications and benchmark tests.