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GPU Comparison
ATI Mobility Radeon HD 3870 X2 vs AMD Radeon HD 6970M Rebrand
ATI Mobility Radeon HD 3870 X2 vs AMD Radeon HD 6970M Rebrand
VS
ATI Mobility Radeon HD 3870 X2
AMD Radeon HD 6970M Rebrand
We compared two Mobile platform GPUs: 512MB VRAM Mobility Radeon HD 3870 X2 and 1024MB VRAM Radeon HD 6970M Rebrand to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon HD 6970M Rebrand 's Advantages
Released 2 years and 4 months late
More VRAM (1024GB vs 512GB)
Larger VRAM bandwidth (64.00GB/s vs 54.40GB/s)
480 additional rendering cores
Lower TDP (75W vs 110W)
Score
Benchmark
FP32 (float)
Mobility Radeon HD 3870 X2
0.422 TFLOPS
Radeon HD 6970M Rebrand
+203%
1.28 TFLOPS
Mobility Radeon HD 3870 X2
VS
Radeon HD 6970M Rebrand
Graphics Card
Sep 2008
Release Date
Jan 2011
M8x
Generation
Vancouver
Mobile
Type
Mobile
PCIe 2.0 x16
Bus Interface
MXM-B (3.0)
Clock Speeds
-
Base Clock
-
-
Boost Clock
-
850 MHz
Memory Clock
1000 MHz
Memory
512MB
Memory Size
1024MB
GDDR3
Memory Type
GDDR5
256bit
Memory Bus
128bit
54.40GB/s
Bandwidth
64.00GB/s
Render Config
-
SM Count
-
4
Compute Units
10
320
Shading Units
800
16
TMUs
40
16
ROPs
16
-
Tensor Cores
-
-
RT Cores
-
-
L1 Cache
8 KB (per CU)
256 KB
L2 Cache
256 KB
Theoretical Performance
10.56 GPixel/s
Pixel Rate
12.80 GPixel/s
10.56 GTexel/s
Texture Rate
32.00 GTexel/s
-
FP16 (half)
-
422.4 GFLOPS
FP32 (float)
1280 GFLOPS
84.48 GFLOPS
FP64 (double)
-
Graphics Processor
M88
GPU Name
Broadway
-
GPU Variant
Broadway XT
TeraScale
Architecture
TeraScale 2
TSMC
Foundry
TSMC
55 nm
Process Size
40 nm
0.666 billion
Transistors
1.04 billion
192 mm²
Die Size
166 mm²
Board Design
110W
TDP
75W
-
Suggested PSU
-
No outputs
Outputs
No outputs
-
Power Connectors
-
Graphics Features
10.1 (10_1)
DirectX
11.2 (11_0)
3.3
OpenGL
4.4
N/A
OpenCL
1.2
N/A
Vulkan
N/A
-
CUDA
-
4.1
Shader Model
5.0
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