XFX Radeon RX 6900 XT Speedster MERC 319 vs AMD Radeon RX Vega 56
XFX Radeon RX 6900 XT Speedster MERC 319
$730
AMD Radeon RX Vega 56
$399
|
5120 Shaders
16GB GDDR6
2365MHz
|
3584 Shaders
8GB HBM2
1471MHz
|
|
FP32
24.22 TFLOPS
|
FP32
10.54 TFLOPS
|
|
FP16
48.44 TFLOPS
|
FP16
21.09 TFLOPS
|
|
Form Factor
PCIe Card
2.8-Slots
|
Form Factor
PCIe Card
2.0-Slots
|
|
TDP
350W
|
TDP
210W
|
|
Power Connectors
-
2x 8-Pin
-
-
|
Power Connectors
-
2x 8-Pin
-
-
|
|
GB5 OpenCL 173,555
57%
|
GB5 OpenCL N/A
0%
|
|
GB5 CUDA N/A
0%
|
GB5 CUDA N/A
0%
|
|
GB5 Metal 170,855
95%
|
GB5 Metal N/A
0%
|
|
GB5 Vulkan 119,870
58%
|
GB5 Vulkan N/A
0%
|
|
OCT 2020.1 N/A
0%
|
OCT 2020.1 N/A
0%
|
|
OCT Metal 405
69%
|
OCT Metal N/A
0%
|
|
Manufacturer
XFX
|
Manufacturer
AMD
|
|
Chip Designer
AMD
|
Chip Designer
AMD
|
|
Architecture
RDNA 2
|
Architecture
GCN 5
|
|
Family
Radeon RX 6000
|
Family
Radeon RX Vega
|
|
Codename
Sienna Cichlid
Navi 21
Variant
Navi 21 XTX
|
Codename
Greenland
Vega 10
Variant
Vega 10 XL
|
|
Market Segment
Desktop
|
Market Segment
Desktop
|
|
Release Date
12/8/2020
|
Release Date
8/28/2017
|
|
Foundry
TSMC
-
|
Foundry
GlobalFoundries
-
|
|
Fabrication Node
N7
-
|
Fabrication Node
14LPP
-
|
|
Die Size
520 mm²
-
|
Die Size
486 mm²
-
|
|
Transistor Count
26.8 Billion
-
|
Transistor Count
12.5 Billion
-
|
|
Transistor Density
51.56M/mm²
-
|
Transistor Density
25.72M/mm²
-
|
|
Form
PCIe Card
|
Form
PCIe Card
|
|
Shading Units
5120 Shaders
-
|
Shading Units
3584 Shaders
-
|
|
Texture Mapping Units
320 TMUs
|
Texture Mapping Units
224 TMUs
|
|
Render Output Units
128 ROPs
|
Render Output Units
64 ROPs
|
|
-
-
|
-
-
|
|
Ray-Tracing Cores
80 RT-Cores
|
-
-
|
|
-
-
|
-
-
|
|
Compute Units
80 CUs
|
Compute Units
56 CUs
|
|
-
-
|
-
-
|
|
Graphics Processing Clusters
4 GPCs
|
-
-
|
|
-
-
1950MHz Base
2365MHz
|
-
-
1156MHz Base
1471MHz
|
|
-
-
|
-
-
|
|
-
-
-
|
-
-
-
|
|
FP16
48.44 TFLOPS
-
|
FP16
21.09 TFLOPS
-
|
|
-
-
-
|
-
-
-
|
|
FP32
24.22 TFLOPS
|
FP32
10.54 TFLOPS
|
|
-
-
|
-
-
|
|
FP64
1.51 TFLOPS
-
|
FP64
0.66 TFLOPS
-
|
|
-
-
|
-
-
|
|
-
-
|
-
-
|
|
Pixel Fillrate
302.72 GPixel/s
|
Pixel Fillrate
94.144 GPixel/s
|
|
-
-
|
-
-
|
|
Texture Fillrate
756.8 GTexel/s
|
Texture Fillrate
329.504 GTexel/s
|
|
L0
32KB/WGP
|
-
-
|
|
L1
-
-
-
128KB/Array
|
L1
-
-
16KB/CU
-
|
|
L2
4MB Shared
|
L2
4MB Shared
|
|
L3
128MB Shared
1.66TB/s
|
-
-
-
|
|
16GB
GDDR6
-
|
8GB
HBM2
-
|
|
Bus Width
256Bit
|
Bus Width
2048Bit
|
|
Clock
2000MHz
Transfer Rate
16GT/s
Bandwidth
512GB/s
|
Clock
800MHz
Transfer Rate
1.6GT/s
Bandwidth
409.6GB/s
|
|
-
-
-
-
-
-
-
-
-
|
-
-
-
-
-
-
-
-
-
|
|
TDP
350W
|
TDP
210W
|
|
Temp
110°C Max
|
-
-
|
|
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
2x DisplayPort 1.4
-
-
-
-
-
-
-
-
-
-
-
1x HDMI 2.1
1x USB-C + DP
-
|
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
3x DisplayPort 1.4
-
-
-
-
-
-
-
-
-
-
1x HDMI 2.0
-
-
-
|
|
Max Resolution
7680x4320
|
Max Resolution
7680x4320
|
|
Max Resolution Refresh Rate
120Hz
|
Max Resolution Refresh Rate
60Hz
|
|
Variable Refresh Rate
-
FreeSync
-
|
Variable Refresh Rate
-
FreeSync
-
|
|
Display Stream Compression (DSC)
Supported
|
Display Stream Compression (DSC)
Not Supported
|
|
Multi Monitor Support
4
|
Multi Monitor Support
3
|
|
Content Protection
HDCP 2.3
|
Content Protection
HDCP 2.2
|
|
Model
VCN 3.0
|
Model
VCE 4.0
|
|
Codec
-
-
-
-
-
-
-
-
AVC (H.264)
HEVC (H.265)
-
-
-
-
|
Codec
-
-
-
-
-
-
-
-
AVC (H.264)
HEVC (H.265)
-
-
-
-
|
|
Model
VCN 3.0
|
Model
UVD 7.0
|
|
Codec
MPEG-1
MPEG-2
MPEG-4
JPEG
VC-1
-
VP9
-
AVC (H.264)
HEVC (H.265)
-
AV1
-
-
|
Codec
MPEG-1
MPEG-2
MPEG-4
JPEG
VC-1
-
-
-
AVC (H.264)
HEVC (H.265)
-
-
-
-
|
|
Direct X
12
Direct 3D
12_2
|
Direct X
12
Direct 3D
12_1
|
|
OpenGL
4.6
OpenCL
2.1
Vulkan
1.2
|
OpenGL
4.6
OpenCL
2.1
Vulkan
1.3
|
|
Shader Model
6.5
-
-
GFX
10.3
-
-
-
-
|
Shader Model
6.7
-
-
GFX
9
-
-
-
-
|
|
-
-
-
3x Fans
|
-
-
-
1x Fan
|
|
Power Connectors
-
-
-
2x 8-Pin
-
-
-
|
Power Connectors
-
-
-
2x 8-Pin
-
-
-
|
|
Slots Required
2.8
PCIe Version
4.0
PCIe Lanes
16
|
Slots Required
2.0
PCIe Version
3.0
PCIe Lanes
16
|
|
Multi GPU Support
Supported
Type
Bridgeless
|
Multi GPU Support
Supported
Type
CrossFire XDMA
|
|
Height
139 mm (5.47 in)
Width
340 mm (13.39 in)
Depth
57 mm (2.24 in)
|
Height
111 mm (4.37 in)
Width
280 mm (11.02 in)
Depth
40 mm (1.57 in)
|
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