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GPU Comparison
AMD Radeon HD 7970M vs AMD Radeon HD 8870M
AMD Radeon HD 7970M vs AMD Radeon HD 8870M
VS
AMD Radeon HD 7970M
AMD Radeon HD 8870M
We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 7970M and 2GB VRAM Radeon HD 8870M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon HD 7970M 's Advantages
Larger VRAM bandwidth (153.6GB/s vs 72.00GB/s)
640 additional rendering cores
AMD Radeon HD 8870M 's Advantages
Released 1 years late
Boost Clock775MHz
Score
Benchmark
FP32 (float)
Radeon HD 7970M
+119%
2.176 TFLOPS
Radeon HD 8870M
0.992 TFLOPS
Radeon HD 7970M
VS
Radeon HD 8870M
Graphics Card
Apr 2012
Release Date
Apr 2013
London
Generation
Solar System
Mobile
Type
Mobile
MXM-B (3.0)
Bus Interface
PCIe 3.0 x16
Clock Speeds
-
Base Clock
725 MHz
-
Boost Clock
775 MHz
1200 MHz
Memory Clock
1125 MHz
Memory
2GB
Memory Size
2GB
GDDR5
Memory Type
GDDR5
256bit
Memory Bus
128bit
153.6GB/s
Bandwidth
72.00GB/s
Render Config
-
SM Count
-
20
Compute Units
10
1280
Shading Units
640
80
TMUs
40
32
ROPs
16
-
Tensor Cores
-
-
RT Cores
-
16 KB (per CU)
L1 Cache
16 KB (per CU)
512 KB
L2 Cache
256 KB
Theoretical Performance
27.20 GPixel/s
Pixel Rate
12.40 GPixel/s
68.00 GTexel/s
Texture Rate
31.00 GTexel/s
-
FP16 (half)
-
2.176 TFLOPS
FP32 (float)
992.0 GFLOPS
136.0 GFLOPS
FP64 (double)
62.00 GFLOPS
Graphics Processor
Wimbledon
GPU Name
Venus
Wimbledon XT (216-0836036)
GPU Variant
Venus XT (216-0846000)
GCN 1.0
Architecture
GCN 1.0
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
2.8 billion
Transistors
1.5 billion
212 mm²
Die Size
123 mm²
Board Design
100W
TDP
Unknown
-
Suggested PSU
-
No outputs
Outputs
Portable Device Dependent
None
Power Connectors
-
Graphics Features
12 (11_1)
DirectX
12 (11_1)
4.6
OpenGL
4.6
1.2
OpenCL
2.1 (1.2)
1.2
Vulkan
1.2.170
-
CUDA
-
5.1
Shader Model
6.5 (5.1)
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