Home GPU Comparison AMD Radeon HD 7970M vs AMD Radeon HD 7450M

AMD Radeon HD 7970M vs AMD Radeon HD 7450M

We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 7970M and 1024MB VRAM Radeon HD 7450M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7970M 's Advantages
More VRAM (2GB vs 1024GB)
Larger VRAM bandwidth (153.6GB/s vs 14.40GB/s)
1120 additional rendering cores
AMD Radeon HD 7450M 's Advantages
Lower TDP (7W vs 100W)

Score

Benchmark

FP32 (float)
Radeon HD 7970M +871%
2.176 TFLOPS
Radeon HD 7450M
0.224 TFLOPS
VS

Graphics Card

Apr 2012
Release Date
Jan 2012
London
Generation
London
Mobile
Type
Mobile
MXM-B (3.0)
Bus Interface
PCIe 2.0 x16

Clock Speeds

-
-
-
-
-
-
1200 MHz
Memory Clock
900 MHz

Memory

2GB
Memory Size
1024MB
GDDR5
Memory Type
DDR3
256bit
Memory Bus
64bit
153.6GB/s
Bandwidth
14.40GB/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

27.20 GPixel/s
Pixel Rate
2.800 GPixel/s
68.00 GTexel/s
Texture Rate
5.600 GTexel/s
-
-
-
2.176 TFLOPS
FP32 (float)
224.0 GFLOPS
136.0 GFLOPS
FP64 (double)
-

Board Design

100W
TDP
7W
-
-
-
No outputs
Outputs
No outputs
None
Power Connectors
-

Graphics Processor

Wimbledon
GPU Name
Seymour
Wimbledon XT (216-0836036)
GPU Variant
Seymour PRO
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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