AMD Radeon HD 7730M vs AMD Radeon HD 8970M
We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 7730M and 4GB VRAM Radeon HD 8970M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon HD 7730M 's Advantages
Lower TDP (25W vs 100W)
AMD Radeon HD 8970M 's Advantages
Released 1 years and 1 months late
Boost Clock has increased by 33% (900MHz vs 675MHz)
More VRAM (4GB vs 2GB)
Larger VRAM bandwidth (153.6GB/s vs 28.80GB/s)
768 additional rendering cores
Score
Benchmark
FP32 (float)
Radeon HD 7730M
0.691 TFLOPS
Radeon HD 8970M
+233%
2.304 TFLOPS
3DMark Time Spy
Radeon HD 7730M
408
Radeon HD 8970M
+278%
1546
Graphics Card
Apr 2012
Release Date
May 2013
London
Generation
Solar System
Mobile
Type
Mobile
PCIe 2.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
575 MHz
Base Clock
850 MHz
675 MHz
Boost Clock
900 MHz
900 MHz
Memory Clock
1200 MHz
Memory
2GB
Memory Size
4GB
DDR3
Memory Type
GDDR5
128bit
Memory Bus
256bit
28.80GB/s
Bandwidth
153.6GB/s
Render Config
8
Compute Units
20
-
-
-
512
Shading Units
1280
32
TMUs
80
16
ROPs
32
-
-
-
-
-
-
16 KB (per CU)
L1 Cache
16 KB (per CU)
256 KB
L2 Cache
512 KB
-
-
-
Theoretical Performance
10.80 GPixel/s
Pixel Rate
28.80 GPixel/s
21.60 GTexel/s
Texture Rate
72.00 GTexel/s
-
-
-
691.2 GFLOPS
FP32 (float)
2.304 TFLOPS
43.20 GFLOPS
FP64 (double)
144.0 GFLOPS
Board Design
25W
TDP
100W
-
-
-
No outputs
Outputs
No outputs
-
-
-
Graphics Processor
Chelsea
GPU Name
Neptune
Chelsea LE
(216-0834065)
GPU Variant
Neptune XT
(216-0847000)
GCN 1.0
Architecture
GCN 1.0
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
1.5 billion
Transistors
2.8 billion
123 mm²
Die Size
212 mm²
Graphics Features
12 (11_1)
DirectX
12 (11_1)
4.6
OpenGL
4.6
1.2
OpenCL
1.2
1.2
Vulkan
1.2
-
-
-
5.1
Shader Model
5.1
