AMD Radeon RX 6600 XT vs AMD Radeon R9 M395 Mac Edition
GPU · Specs Compare
Graphics Card
Release Date
Jul 2021
May 2015
Generation
Navi II
Crystal System
Type
Desktop
Mobile
Bus Interface
PCIe 4.0 x8
MXM-B (3.0)
Clock Speeds
Base Clock
1968 MHz
—
Boost Clock
2589 MHz
—
Memory Clock
2000 MHz
1365 MHz
Memory
Memory Size
8GB
2GB
Memory Type
GDDR6
GDDR5
Memory Bus
128bit
256bit
Bandwidth
256.0GB/s
174.7GB/s
Render Config
Compute Units
32
28
Shading Units
2048
1792
TMUs
128
112
ROPs
64
32
RT Cores
32
—
L1 Cache
128 KB per Array
—
L2 Cache
2 MB
—
L3 Cache
32 MB
—
Theoretical Performance
Pixel Rate
165.7 GPixel/s
26.69 GPixel/s
Texture Rate
331.4 GTexel/s
93.41 GTexel/s
FP16 (half)
21.21 TFLOPS
—
FP32 (float)
10.60 TFLOPS
2.989 TFLOPS
FP64 (double)
662.8 GFLOPS
373.6 GFLOPS
Graphics Processor
GPU Name
Navi 23
Amethyst
GPU Variant
Navi 23 XT(215-130000006)
Amethyst PRO(216-0872004)
Architecture
RDNA 2.0
GCN 3.0
Foundry
TSMC
TSMC
Process Size
7 nm
28 nm
Transistors
11.06 billion
5 billion
Die Size
237 mm²
366 mm²
Board Design
TDP
160W
250W
Suggested PSU
450 W
—
Outputs
1x HDMI 2.13x DisplayPort 1.4a
No outputs
Power Connectors
1x 8-pin
None
Graphics Features
DirectX
12 Ultimate (12_2)
12 (12_0)
OpenGL
4.6
4.6
OpenCL
2.1
2.0
Vulkan
1.3
1.2
Shader Model
6.7
6.3
Benchmark
3DMark Time Spy
9,656
—
3DMark Time Spy Extreme
4,399
—
3DMark Speed Way
1,675
—
Battlefield 5 1080p
144
—
Shadow of the Tomb Raider 2160p
38
—
Cyberpunk 2077 2160p
29
—
Shadow of the Tomb Raider 1440p
72
—
Cyberpunk 2077 1440p
36
—
Shadow of the Tomb Raider 1080p
119
—
Battlefield 5 2160p
58
—
Blender
1,213
—
Cyberpunk 2077 1080p
58
—
Battlefield 5 1440p
111
—
GTA 5 2160p
61
—
GTA 5 1440p
82
—
GTA 5 1080p
149
—
▲ Specs Compare
Data sourced from official specifications and benchmark tests.