AMD Radeon RX Vega 64 Limited Edition vs AMD Radeon HD 7990
GPU Specs Compare
Graphics Card
Release Date
Aug 2017
Apr 2013
Generation
Vega
Southern Islands
Type
Desktop
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
1247 MHz
950 MHz
Boost Clock
1546 MHz
1000 MHz
Memory Clock
945 MHz
1500 MHz
Memory
Memory Size
8GB
3GB
Memory Type
HBM2
GDDR5
Memory Bus
2048bit
384bit
Bandwidth
483.8GB/s
288.0GB/s
Render Config
Compute Units
64
32
Shading Units
4096
2048
TMUs
256
128
ROPs
64
32
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
4 MB
768 KB
Theoretical Performance
Pixel Rate
98.94 GPixel/s
32.00 GPixel/s
Texture Rate
395.8 GTexel/s
128.0 GTexel/s
FP16 (half)
25.33 TFLOPS
-
FP32 (float)
12.66 TFLOPS
4.096 TFLOPS
FP64 (double)
791.6 GFLOPS
1024 GFLOPS
Graphics Processor
GPU Name
Vega 10
Malta
GPU Variant
Vega 10 XT(215-0894200)
Malta XT(215-0849026)
Architecture
GCN 5.0
GCN 1.0
Foundry
GlobalFoundries
TSMC
Process Size
14 nm
28 nm
Transistors
12.5 billion
4.313 billion
Die Size
495 mm²
365 mm²
Board Design
TDP
295W
375W
Suggested PSU
600 W
750 W
Outputs
1x HDMI 2.0b3x DisplayPort 1.4a
1x DVI4x mini-DisplayPort 1.2
Power Connectors
2x 8-pin
2x 8-pin
Graphics Features
DirectX
12 (12_1)
12 (11_1)
OpenGL
4.6
4.6
OpenCL
2.1
1.2
Vulkan
1.2
1.2
Shader Model
6.4
5.1