GPU Comparison
RADEON
AMD 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
VS
RADEON
Radeon RX Vega 56
CORE STATE
Vega 10
VRAM
8 GB
CLOCK SPEED
1471 MHz
TDP
210 W
BUS WIDTH
2048 bit
ARCHITECTURE
GCN 5.0
PROCESS
14 nm
LAUNCH DATE
2017
PERFORMANCE BENCHMARKS
3dmark_3dmark_steel_nomad_dx12
geekbench_metal
geekbench_opencl
geekbench_vulkan
passmark_directx_10
passmark_directx_11
passmark_directx_12
passmark_directx_9
passmark_g2d
passmark_g3d
passmark_gpu_compute
DETAILED SPECIFICATIONS
SPECIFICATION
RX 6900 XT
RX Vega 56
Core Specs
Shading Units
5,120
3,584
-30.0%
Shaders
5,120
3,584
-30.0%
TMUs
320
224
-30.0%
ROPs
128
64
-50.0%
Compute Units
80
56
-30.0%
Clocks
Base Clock
1825 MHz
1156 MHz
Boost Clock
2250 MHz
1471 MHz
Game Clock
2015 MHz
—
Memory Clock
2000 MHz
16 Gbps effective
800 MHz
1600 Mbps effective
Memory
Memory Size
16 GB
8 GB
VRAM (MB)
16,384
8,192
-50.0%
Memory Type
GDDR6
HBM2
Memory Bus
256 bit
2048 bit
Bandwidth
512.0 GB/s
409.6 GB/s
Cache
L1 Cache
128 KB per Array
16 KB (per CU)
L2 Cache
4 MB
4 MB
L3 Cache
128 MB
—
L0 Cache
32 KB per WGP
—
Performance
Pixel Rate
288.0 GPixel/s
94.14 GPixel/s
Texture Rate
720.0 GTexel/s
329.5 GTexel/s
FP32 (TFLOPS)
23.04 TFLOPS
10.54 TFLOPS
FP64 (TFLOPS)
1,440.0 GFLOPS (1:16)
659.0 GFLOPS (1:16)
FP16 (TFLOPS)
46.08 TFLOPS (2:1)
21.09 TFLOPS (2:1)
AI/RT
RT Cores
80
—
Power
TDP
300 W
210 W
TDP (W)
300
210
-30.0%
Suggested PSU
700 W
550 W
Power Connectors
2x 8-pin
2x 8-pin
Architecture
Architecture
RDNA 2.0
GCN 5.0
GPU Name
Navi 21
Vega 10
Generation
Navi II
(RX 6000)
Vega
(RX Vega)
Process Size
7 nm
14 nm
Transistors
26,800 million
12,500 million
Die Size
520 mm²
495 mm²
Foundry
TSMC
GlobalFoundries
Density
51.5M / mm²
25.3M / mm²
API Support
DirectX
12 Ultimate (12_2)
12 (12_1)
OpenGL
4.6
4.6
Vulkan
1.4
1.3
OpenCL
2.1
2.1
Shader Model
6.8
6.7
Physical
Slot Width
Triple-slot
Dual-slot
Length
267 mm
10.5 inches
280 mm
11 inches
Height
120 mm
4.7 inches
111 mm
4.4 inches
Outputs
1x HDMI 2.12x DisplayPort 1.4a1x USB Type-C
1x HDMI 2.0b3x DisplayPort 1.4a
Bus Interface
PCIe 4.0 x16
PCIe 3.0 x16
Other
Launch Price
999 USD
399 USD
Production
End-of-life
End-of-life
Predecessor
Navi
Polaris
Successor
Navi III
Navi