Home GPU Comparison AMD Radeon HD 7670M vs AMD Radeon R9 M390X

AMD Radeon HD 7670M vs AMD Radeon R9 M390X

We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 7670M and 4GB VRAM Radeon R9 M390X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7670M 's Advantages
Lower TDP (20W vs 75W)
AMD Radeon R9 M390X 's Advantages
Released 3 years and 3 months late
More VRAM (4GB vs 1024GB)
Larger VRAM bandwidth (160.0GB/s vs 28.80GB/s)
1568 additional rendering cores

Score

Benchmark

FP32 (float)
Radeon HD 7670M
0.576 TFLOPS
Radeon R9 M390X +414%
2.961 TFLOPS
VS

Graphics Card

Feb 2012
Release Date
May 2015
London
Generation
Crystal System
Mobile
Type
Mobile
PCIe 2.0 x16
Bus Interface
PCIe 3.0 x16

Clock Speeds

-
-
-
-
-
-
900 MHz
Memory Clock
1250 MHz

Memory

1024MB
Memory Size
4GB
DDR3
Memory Type
GDDR5
128bit
Memory Bus
256bit
28.80GB/s
Bandwidth
160.0GB/s

Render Config

6
Compute Units
32
-
-
-
480
Shading Units
2048
24
TMUs
128
16
ROPs
32
-
-
-
-
-
-
8 KB (per CU)
L1 Cache
16 KB (per CU)
256 KB
L2 Cache
512 KB
-
-
-

Theoretical Performance

9.600 GPixel/s
Pixel Rate
23.14 GPixel/s
14.40 GTexel/s
Texture Rate
92.54 GTexel/s
-
FP16 (half)
2.961 TFLOPS
576.0 GFLOPS
FP32 (float)
2.961 TFLOPS
-
FP64 (double)
185.1 GFLOPS

Board Design

20W
TDP
75W
-
-
-
No outputs
Outputs
No outputs
-
Power Connectors
None

Graphics Processor

Thames
GPU Name
Amethyst
Thames XT (216-0833000)
GPU Variant
Amethyst XT
TeraScale 2
Architecture
GCN 3.0
TSMC
Foundry
TSMC
40 nm
Process Size
28 nm
0.716 billion
Transistors
5 billion
104 mm²
Die Size
366 mm²

Graphics Features

11.2 (11_0)
DirectX
12 (12_0)
4.4
OpenGL
4.6
1.2
OpenCL
2.0
N/A
Vulkan
1.2
-
-
-
5.0
Shader Model
6.3

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