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GPU Comparison
AMD Radeon HD 6970M Mac Edition vs NVIDIA GeForce 840A
AMD Radeon HD 6970M Mac Edition vs NVIDIA GeForce 840A
VS
AMD Radeon HD 6970M Mac Edition
NVIDIA GeForce 840A
We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 6970M Mac Edition and 2GB VRAM GeForce 840A to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon HD 6970M Mac Edition 's Advantages
Larger VRAM bandwidth (115.2GB/s vs 16.02GB/s)
576 additional rendering cores
NVIDIA GeForce 840A 's Advantages
Released 2 years and 7 months late
Boost Clock1124MHz
Lower TDP (33W vs 75W)
Score
Benchmark
FP32 (float)
Radeon HD 6970M Mac Edition
+51%
1.306 TFLOPS
GeForce 840A
0.863 TFLOPS
Radeon HD 6970M Mac Edition
VS
GeForce 840A
Graphics Card
Aug 2011
Release Date
Mar 2014
Vancouver
Generation
GeForce 800A
Mobile
Type
Mobile
MXM-B (3.0)
Bus Interface
PCIe 3.0 x8
Clock Speeds
-
Base Clock
1029 MHz
-
Boost Clock
1124 MHz
900 MHz
Memory Clock
1001 MHz
Memory
2GB
Memory Size
2GB
GDDR5
Memory Type
DDR3
256bit
Memory Bus
64bit
115.2GB/s
Bandwidth
16.02GB/s
Render Config
-
SM Count
-
12
Compute Units
-
960
Shading Units
384
48
TMUs
16
32
ROPs
8
-
Tensor Cores
-
-
RT Cores
-
8 KB (per CU)
L1 Cache
64 KB (per SMM)
512 KB
L2 Cache
1024 KB
Theoretical Performance
21.76 GPixel/s
Pixel Rate
8.992 GPixel/s
32.64 GTexel/s
Texture Rate
17.98 GTexel/s
-
FP16 (half)
-
1306 GFLOPS
FP32 (float)
863.2 GFLOPS
-
FP64 (double)
26.98 GFLOPS
Graphics Processor
Blackcomb
GPU Name
GM108
Blackcomb XT (216-0811000)
GPU Variant
-
TeraScale 2
Architecture
Maxwell
TSMC
Foundry
TSMC
40 nm
Process Size
28 nm
1.7 billion
Transistors
Unknown
212 mm²
Die Size
Unknown
Board Design
75W
TDP
33W
-
Suggested PSU
-
No outputs
Outputs
No outputs
None
Power Connectors
-
Graphics Features
11.2 (11_0)
DirectX
12 (11_0)
4.4
OpenGL
4.6
1.2
OpenCL
3.0
N/A
Vulkan
1.3
-
CUDA
5.0
5.0
Shader Model
5.1
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