AMD Radeon R9 M295X Mac Edition vs AMD Radeon RX 6800 3456SP
GPU · Specs Compare
Graphics Card
Release Date
Nov 2014
Unknown
Generation
Crystal System
Navi II
Type
Mobile
Desktop
Bus Interface
MXM-B (3.0)
PCIe 4.0 x16
Clock Speeds
Memory Clock
1362 MHz
2000 MHz
Base Clock
—
1700 MHz
Boost Clock
—
2250 MHz
Memory
Memory Size
4GB
16GB
Memory Type
GDDR5
GDDR6
Memory Bus
256bit
256bit
Bandwidth
174.3GB/s
512.0GB/s
Render Config
Compute Units
32
54
Shading Units
2048
3456
TMUs
128
216
ROPs
32
96
L1 Cache
16 KB (per CU)
128 KB per Array
L2 Cache
512 KB
4 MB
RT Cores
—
54
L3 Cache
—
128 MB
Theoretical Performance
Pixel Rate
27.20 GPixel/s
216.0 GPixel/s
Texture Rate
108.8 GTexel/s
486.0 GTexel/s
FP16 (half)
3.482 TFLOPS
31.10 TFLOPS
FP32 (float)
3.482 TFLOPS
15.55 TFLOPS
FP64 (double)
217.6 GFLOPS
972.0 GFLOPS
Graphics Processor
GPU Name
Amethyst
Navi 21
GPU Variant
Amethyst XT
Navi 21 ES(215-121000066)
Architecture
GCN 3.0
RDNA 2.0
Foundry
TSMC
TSMC
Process Size
28 nm
7 nm
Transistors
5 billion
26.8 billion
Die Size
366 mm²
520 mm²
Board Design
TDP
250W
250W
Outputs
No outputs
1x HDMI 2.12x DisplayPort 1.4a1x USB Type-C
Suggested PSU
—
600 W
Power Connectors
—
2x 8-pin
Graphics Features
DirectX
12 (12_0)
12 Ultimate (12_2)
OpenGL
4.6
4.6
OpenCL
2.0
2.1
Vulkan
1.2
1.3
Shader Model
6.3
6.8
▲ Specs Compare
Data sourced from official specifications and benchmark tests.