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GPU Comparison
AMD Radeon HD 6870M vs ATI Mobility Radeon HD 2600 XT Mac Edition
AMD Radeon HD 6870M vs ATI Mobility Radeon HD 2600 XT Mac Edition
VS
AMD Radeon HD 6870M
ATI Mobility Radeon HD 2600 XT Mac Edition
We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 6870M and 256MB VRAM Mobility Radeon HD 2600 XT Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon HD 6870M 's Advantages
Released 3 years and 6 months late
More VRAM (1024GB vs 256GB)
Larger VRAM bandwidth (64.00GB/s vs 21.92GB/s)
680 additional rendering cores
Score
Benchmark
FP32 (float)
Radeon HD 6870M
+650%
1.08 TFLOPS
Mobility Radeon HD 2600 XT Mac Edition
0.144 TFLOPS
Radeon HD 6870M
VS
Mobility Radeon HD 2600 XT Mac Edition
Graphics Card
Jan 2011
Release Date
Jul 2007
Vancouver
Generation
M7x
Mobile
Type
Mobile
MXM-B (3.0)
Bus Interface
MXM-II
Clock Speeds
-
Base Clock
-
-
Boost Clock
-
1000 MHz
Memory Clock
685 MHz
Memory
1024MB
Memory Size
256MB
GDDR5
Memory Type
GDDR3
128bit
Memory Bus
128bit
64.00GB/s
Bandwidth
21.92GB/s
Render Config
-
SM Count
-
10
Compute Units
3
800
Shading Units
120
40
TMUs
8
16
ROPs
4
-
Tensor Cores
-
-
RT Cores
-
8 KB (per CU)
L1 Cache
-
256 KB
L2 Cache
64 KB
Theoretical Performance
10.80 GPixel/s
Pixel Rate
2.400 GPixel/s
27.00 GTexel/s
Texture Rate
4.800 GTexel/s
-
FP16 (half)
-
1080 GFLOPS
FP32 (float)
144.0 GFLOPS
-
FP64 (double)
-
Graphics Processor
Granville
GPU Name
M76
Granville XT (216-0769024)
GPU Variant
M76 XT-M (216XJBKA13FG)
TeraScale 2
Architecture
TeraScale
TSMC
Foundry
TSMC
40 nm
Process Size
65 nm
1.04 billion
Transistors
0.39 billion
166 mm²
Die Size
153 mm²
Board Design
50W
TDP
Unknown
-
Suggested PSU
-
No outputs
Outputs
Portable Device Dependent
-
Power Connectors
-
Graphics Features
11.2 (11_0)
DirectX
10.0 (10_0)
4.4
OpenGL
3.3
1.2
OpenCL
N/A
N/A
Vulkan
N/A
-
CUDA
-
5.0
Shader Model
4.0
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