Radeon RX Vega 64 and Radeon HD 7970 - video card comparison
Passmark - benchmark score Radeon RX Vega 64 vs Radeon HD 7970
Radeon RX Vega 64
14787
Radeon HD 7970
5405
Radeon RX Vega 64
Radeon HD 7970
Architecture
Vega (2017−2021)
GCN (2011−2017)
GPU code name
Vega
Tahiti XT
Market segment
Desktop
Desktop
Release date
August 2017
December 2011
Bus support
-
PCIe 2.1 x16
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Supplementary power connectors
2x 8-pin
1x 6-pin + 1x 8-pin
Boost clock speed
1546 MHz
925 MHz
Core clock speed
1630 MHz
-
Floating-point performance
13,353 gflops
3,789 gflops
Manufacturing process technology
14 nm
28 nm
Number of transistors
12,500 million
4,313 million
Pipelines / CUDA cores
4096
2048
Power consumption (TDP)
295 Watt
300 Watt
Texture fill rate
395.8
118.4
Memory type
HBM2
GDDR5
Maximum RAM amount
8 GB
6 GB
Memory bus width
2048 Bit
384 Bit
Memory clock speed
945 MHz
1375 MHz
Memory bandwidth
483.8 GB/s
264 GB/s
Shared memory
-
-
Display Connectors
1x HDMI, 3x DisplayPort
1x DVI, 1x HDMI, 2x mini-DisplayPort
Eyefinity
-
+
HDMI
+
+
DisplayPort support
-
-
DirectX
12 (12_1)
DirectX® 11
Mantle
-
-
OpenCL
2.0
1.2
OpenGL
4.6
4.6
Shader Model
6.4
5.1
Vulkan
1.1.125
-
AppAcceleration
-
-
CrossFire
-
1
Enduro
-
-
FreeSync
-
1
HD3D
-
-
PowerTune
-
-
TrueAudio
-
-
ZeroCore
-
-