Home GPU Comparison AMD Radeon HD 8670M vs AMD Radeon R9 M385

AMD Radeon HD 8670M vs AMD Radeon R9 M385

AMD Radeon HD 8670M
VS
AMD Radeon R9 M385
AMD Radeon HD 8670M
AMD Radeon R9 M385
We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 8670M and 4GB VRAM Radeon R9 M385 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 M385 's Advantages
Released 2 years and 2 months late
Boost Clock has increased by 3% (1000MHz vs 975MHz)
More VRAM (4GB vs 1024GB)
Larger VRAM bandwidth (76.80GB/s vs 14.40GB/s)
576 additional rendering cores

Score

Benchmark

FP32 (float)
Radeon HD 8670M
0.624 TFLOPS
Radeon R9 M385 +187%
1.792 TFLOPS
Radeon HD 8670M
VS
Radeon R9 M385

Graphics Card

Mar 2013
Release Date
May 2015
Solar System
Generation
Gem System
Mobile
Type
Mobile
PCIe 3.0 x8
Bus Interface
PCIe 3.0 x16

Clock Speeds

925 MHz
Base Clock
900 MHz
975 MHz
Boost Clock
1000 MHz
900 MHz
Memory Clock
1200 MHz

Memory

1024MB
Memory Size
4GB
DDR3
Memory Type
GDDR5
64bit
Memory Bus
128bit
14.40GB/s
Bandwidth
76.80GB/s

Render Config

5
Compute Units
14
-
-
-
320
Shading Units
896
20
TMUs
56
8
ROPs
16
-
-
-
-
-
-
16 KB (per CU)
L1 Cache
16 KB (per CU)
128 KB
L2 Cache
256 KB
-
-
-

Theoretical Performance

7.800 GPixel/s
Pixel Rate
16.00 GPixel/s
19.50 GTexel/s
Texture Rate
56.00 GTexel/s
-
-
-
624.0 GFLOPS
FP32 (float)
1.792 TFLOPS
39.00 GFLOPS
FP64 (double)
112.0 GFLOPS

Board Design

Unknown
TDP
Unknown
-
-
-
Portable Device Dependent
Outputs
Portable Device Dependent
-
-
-

Graphics Processor

Sun
GPU Name
Strato
Sun S3 XT (216-0841009)
GPU Variant
Strato XT
GCN 1.0
Architecture
GCN 2.0
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
0.69 billion
Transistors
2.08 billion
56 mm²
Die Size
160 mm²

Graphics Features

12 (11_1)
DirectX
12 (12_0)
4.6
OpenGL
4.6
2.1 (1.2)
OpenCL
2.1
1.2.170
Vulkan
1.2.170
-
-
-
6.5 (5.1)
Shader Model
6.5

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