Home GPU Comparison AMD Radeon HD 8970M vs AMD Radeon HD 6450M

AMD Radeon HD 8970M vs AMD Radeon HD 6450M

We compared two Mobile platform GPUs: 4GB VRAM Radeon HD 8970M and 1024MB VRAM Radeon HD 6450M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 8970M 's Advantages
Released 2 years and 4 months late
Boost Clock900MHz
More VRAM (4GB vs 1024GB)
Larger VRAM bandwidth (153.6GB/s vs 12.80GB/s)
1120 additional rendering cores

Score

Benchmark

FP32 (float)
Radeon HD 8970M +1100%
2.304 TFLOPS
Radeon HD 6450M
0.192 TFLOPS
VS

Graphics Card

May 2013
Release Date
Jan 2011
Solar System
Generation
Vancouver
Mobile
Type
Mobile
PCIe 3.0 x16
Bus Interface
PCIe 2.0 x16

Clock Speeds

850 MHz
Base Clock
-
900 MHz
Boost Clock
-
1200 MHz
Memory Clock
800 MHz

Memory

4GB
Memory Size
1024MB
GDDR5
Memory Type
DDR3
256bit
Memory Bus
64bit
153.6GB/s
Bandwidth
12.80GB/s

Render Config

20
Compute Units
2
-
-
-
1280
Shading Units
160
80
TMUs
8
32
ROPs
4
-
-
-
-
-
-
16 KB (per CU)
L1 Cache
8 KB (per CU)
512 KB
L2 Cache
128 KB
-
-
-

Theoretical Performance

28.80 GPixel/s
Pixel Rate
2.400 GPixel/s
72.00 GTexel/s
Texture Rate
4.800 GTexel/s
-
-
-
2.304 TFLOPS
FP32 (float)
192.0 GFLOPS
144.0 GFLOPS
FP64 (double)
-

Board Design

100W
TDP
Unknown
-
-
-
No outputs
Outputs
Portable Device Dependent
-
-
-

Graphics Processor

Neptune
GPU Name
Seymour
Neptune XT (216-0847000)
GPU Variant
Seymour PRO S3 (216-0809024)
GCN 1.0
Architecture
TeraScale 2
TSMC
Foundry
TSMC
28 nm
Process Size
40 nm
2.8 billion
Transistors
0.37 billion
212 mm²
Die Size
67 mm²

Graphics Features

12 (11_1)
DirectX
11.2 (11_0)
4.6
OpenGL
4.4
1.2
OpenCL
1.2
1.2
Vulkan
N/A
-
-
-
5.1
Shader Model
5.0

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