GPU Comparison
RADEON
AMD Radeon R9 M395X
CORE STATE
Amethyst
VRAM
8 GB
CLOCK SPEED
—
TDP
75 W
BUS WIDTH
256 bit
ARCHITECTURE
GCN 3.0
PROCESS
28 nm
LAUNCH DATE
2015
VS
RADEON
Radeon RX 6900 XT
CORE STATE
Navi 21
VRAM
16 GB
CLOCK SPEED
2250 MHz
TDP
300 W
BUS WIDTH
256 bit
ARCHITECTURE
RDNA 2.0
PROCESS
7 nm
LAUNCH DATE
2020
PERFORMANCE BENCHMARKS
geekbench_metal
geekbench_opencl
3dmark_3dmark_steel_nomad_dx12
geekbench_vulkan
passmark_directx_10
passmark_directx_11
passmark_directx_12
passmark_directx_9
passmark_g2d
passmark_g3d
passmark_gpu_compute
DETAILED SPECIFICATIONS
SPECIFICATION
R9 M395X
RX 6900 XT
Core Specs
Shading Units
2,048
5,120
+150.0%
Shaders
2,048
5,120
+150.0%
TMUs
128
320
+150.0%
ROPs
32
128
+300.0%
Compute Units
32
80
+150.0%
Clocks
Base Clock
—
1825 MHz
Boost Clock
—
2250 MHz
GPU Clock
723 MHz
—
Game Clock
—
2015 MHz
Memory Clock
1250 MHz
5 Gbps effective
2000 MHz
16 Gbps effective
Memory
Memory Size
8 GB
16 GB
VRAM (MB)
8,192
16,384
+100.0%
Memory Type
GDDR5
GDDR6
Memory Bus
256 bit
256 bit
Bandwidth
160.0 GB/s
512.0 GB/s
Cache
L1 Cache
16 KB (per CU)
128 KB per Array
L2 Cache
512 KB
4 MB
L3 Cache
—
128 MB
L0 Cache
—
32 KB per WGP
Performance
Pixel Rate
23.14 GPixel/s
288.0 GPixel/s
Texture Rate
92.54 GTexel/s
720.0 GTexel/s
FP32 (TFLOPS)
2.961 TFLOPS
23.04 TFLOPS
FP64 (TFLOPS)
185.1 GFLOPS (1:16)
1,440.0 GFLOPS (1:16)
FP16 (TFLOPS)
2.961 TFLOPS (1:1)
46.08 TFLOPS (2:1)
AI/RT
RT Cores
—
80
Power
TDP
75 W
300 W
TDP (W)
75
300
+300.0%
Suggested PSU
—
700 W
Power Connectors
None
2x 8-pin
Architecture
Architecture
GCN 3.0
RDNA 2.0
GPU Name
Amethyst
Navi 21
Generation
Gem System
(R9 M300)
Navi II
(RX 6000)
Process Size
28 nm
7 nm
Transistors
5,000 million
26,800 million
Die Size
366 mm²
520 mm²
Foundry
TSMC
TSMC
Density
13.7M / mm²
51.5M / mm²
API Support
DirectX
12 (12_0)
12 Ultimate (12_2)
OpenGL
4.6
4.6
Vulkan
1.2.170
1.4
OpenCL
2.1
2.1
Shader Model
6.5
6.8
Physical
Slot Width
MXM Module
Triple-slot
Length
—
267 mm
10.5 inches
Height
—
120 mm
4.7 inches
Outputs
Portable Device Dependent
1x HDMI 2.12x DisplayPort 1.4a1x USB Type-C
Bus Interface
PCIe 3.0 x16
PCIe 4.0 x16
Other
Launch Price
—
999 USD
Production
End-of-life
End-of-life
Predecessor
Solar System
Navi
Successor
Polaris Mobile
Navi III