Home GPU Comparison AMD Radeon HD 8670M vs AMD Radeon HD 8670A

AMD Radeon HD 8670M vs AMD Radeon HD 8670A

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

Main Differences

AMD Radeon HD 8670M 's Advantages
Boost Clock975MHz
AMD Radeon HD 8670A 's Advantages
Larger VRAM bandwidth (16.00GB/s vs 14.40GB/s)
64 additional rendering cores

Score

Benchmark

FP32 (float)
Radeon HD 8670M +35%
0.624 TFLOPS
Radeon HD 8670A
0.461 TFLOPS
VS

Graphics Card

Mar 2013
Release Date
Feb 2013
Solar System
Generation
All-In-One
Mobile
Type
Mobile
PCIe 3.0 x8
Bus Interface
MXM-A (3.0)

Clock Speeds

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

Memory

1024MB
Memory Size
1024MB
DDR3
Memory Type
DDR3
64bit
Memory Bus
64bit
14.40GB/s
Bandwidth
16.00GB/s

Render Config

5
Compute Units
6
-
-
-
320
Shading Units
384
20
TMUs
24
8
ROPs
8
-
-
-
-
-
-
16 KB (per CU)
L1 Cache
16 KB (per CU)
128 KB
L2 Cache
128 KB
-
-
-

Theoretical Performance

7.800 GPixel/s
Pixel Rate
4.800 GPixel/s
19.50 GTexel/s
Texture Rate
14.40 GTexel/s
-
-
-
624.0 GFLOPS
FP32 (float)
460.8 GFLOPS
39.00 GFLOPS
FP64 (double)
28.80 GFLOPS

Board Design

Unknown
TDP
45W
-
-
-
Portable Device Dependent
Outputs
No outputs
-
-
-

Graphics Processor

Sun
GPU Name
Mars
Sun S3 XT (216-0841009)
GPU Variant
Mars XT
GCN 1.0
Architecture
GCN 1.0
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
0.69 billion
Transistors
0.95 billion
56 mm²
Die Size
77 mm²

Graphics Features

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

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