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GPU Comparison
AMD Radeon HD 6970M Rebrand vs ATI Mobility Radeon HD 3870 X2
AMD Radeon HD 6970M Rebrand vs ATI Mobility Radeon HD 3870 X2
VS
AMD Radeon HD 6970M Rebrand
ATI Mobility Radeon HD 3870 X2
We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 6970M Rebrand and 512MB VRAM Mobility Radeon HD 3870 X2 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)
Radeon HD 6970M Rebrand
+203%
1.28 TFLOPS
Mobility Radeon HD 3870 X2
0.422 TFLOPS
Radeon HD 6970M Rebrand
VS
Mobility Radeon HD 3870 X2
Graphics Card
Jan 2011
Release Date
Sep 2008
Vancouver
Generation
M8x
Mobile
Type
Mobile
MXM-B (3.0)
Bus Interface
PCIe 2.0 x16
Clock Speeds
-
-
-
-
-
-
1000 MHz
Memory Clock
850 MHz
Memory
1024MB
Memory Size
512MB
GDDR5
Memory Type
GDDR3
128bit
Memory Bus
256bit
64.00GB/s
Bandwidth
54.40GB/s
Render Config
10
Compute Units
4
-
-
-
800
Shading Units
320
40
TMUs
16
16
ROPs
16
-
-
-
-
-
-
8 KB (per CU)
L1 Cache
-
256 KB
L2 Cache
256 KB
-
-
-
Theoretical Performance
12.80 GPixel/s
Pixel Rate
10.56 GPixel/s
32.00 GTexel/s
Texture Rate
10.56 GTexel/s
-
-
-
1280 GFLOPS
FP32 (float)
422.4 GFLOPS
-
FP64 (double)
84.48 GFLOPS
Board Design
75W
TDP
110W
-
-
-
No outputs
Outputs
No outputs
-
-
-
Graphics Processor
Broadway
GPU Name
M88
Broadway XT
GPU Variant
-
TeraScale 2
Architecture
TeraScale
TSMC
Foundry
TSMC
40 nm
Process Size
55 nm
1.04 billion
Transistors
0.666 billion
166 mm²
Die Size
192 mm²
Graphics Features
11.2 (11_0)
DirectX
10.1 (10_1)
4.4
OpenGL
3.3
1.2
OpenCL
N/A
N/A
Vulkan
N/A
-
-
-
5.0
Shader Model
4.1
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