Home GPU Comparison AMD Radeon HD 6990M vs AMD Radeon RX Vega M GH

AMD Radeon HD 6990M vs AMD Radeon RX Vega M GH

We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 6990M and 4GB VRAM Radeon RX Vega M GH to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX Vega M GH 's Advantages
Released 6 years and 7 months late
Boost Clock1190MHz
More VRAM (4GB vs 2GB)
Larger VRAM bandwidth (204.8GB/s vs 115.2GB/s)
416 additional rendering cores

Score

Benchmark

FP32 (float)
Radeon HD 6990M
1.602 TFLOPS
Radeon RX Vega M GH +128%
3.656 TFLOPS
VS

Graphics Card

Jul 2011
Release Date
Feb 2018
Vancouver
Generation
Vega
Mobile
Type
Mobile
MXM-B (3.0)
Bus Interface
IGP

Clock Speeds

-
Base Clock
1063 MHz
-
Boost Clock
1190 MHz
900 MHz
Memory Clock
800 MHz

Memory

2GB
Memory Size
4GB
GDDR5
Memory Type
HBM2
256bit
Memory Bus
1024bit
115.2GB/s
Bandwidth
204.8GB/s

Render Config

14
Compute Units
24
-
-
-
1120
Shading Units
1536
56
TMUs
96
32
ROPs
64
-
-
-
-
-
-
8 KB (per CU)
L1 Cache
16 KB (per CU)
512 KB
L2 Cache
1024 KB
-
-
-

Theoretical Performance

22.88 GPixel/s
Pixel Rate
76.16 GPixel/s
40.04 GTexel/s
Texture Rate
114.2 GTexel/s
-
FP16 (half)
3.656 TFLOPS
1.602 TFLOPS
FP32 (float)
3.656 TFLOPS
-
FP64 (double)
228.5 GFLOPS

Board Design

100W
TDP
100W
-
-
-
No outputs
Outputs
No outputs
None
Power Connectors
-

Graphics Processor

Blackcomb
GPU Name
Polaris 22
Blackcomb XTX (216-0811030)
GPU Variant
VegaM XT (C7398773)
TeraScale 2
Architecture
GCN 4.0
TSMC
Foundry
GlobalFoundries
40 nm
Process Size
14 nm
1.7 billion
Transistors
5 billion
212 mm²
Die Size
208 mm²

Graphics Features

11.2 (11_0)
DirectX
12 (12_0)
4.4
OpenGL
4.6
1.2
OpenCL
2.1
N/A
Vulkan
1.2
-
-
-
5.0
Shader Model
6.4

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