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GPU Comparison
AMD Radeon HD 6850M vs NVIDIA GeForce GT 640M
AMD Radeon HD 6850M vs NVIDIA GeForce GT 640M
VS
AMD Radeon HD 6850M
NVIDIA GeForce GT 640M
We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 6850M and 2GB VRAM GeForce GT 640M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon HD 6850M 's Advantages
416 additional rendering cores
NVIDIA GeForce GT 640M 's Advantages
Released 1 years and 2 months late
More VRAM (2GB vs 1GB)
Larger VRAM bandwidth (28.80GB/s vs 25.60GB/s)
Lower TDP (32W vs 50W)
Score
Benchmark
FP32 (float)
Radeon HD 6850M
+125%
1.08 TFLOPS
GeForce GT 640M
0.48 TFLOPS
Radeon HD 6850M
VS
GeForce GT 640M
Graphics Card
Jan 2011
Release Date
Mar 2012
Vancouver
Generation
GeForce 600M
Mobile
Type
Mobile
PCIe 2.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
-
Base Clock
-
-
Boost Clock
-
800 MHz
Memory Clock
900 MHz
Memory
1024MB
Memory Size
2GB
GDDR3
Memory Type
DDR3
128bit
Memory Bus
128bit
25.60GB/s
Bandwidth
28.80GB/s
Render Config
-
SM Count
-
10
Compute Units
-
800
Shading Units
384
40
TMUs
32
16
ROPs
16
-
Tensor Cores
-
-
RT Cores
-
8 KB (per CU)
L1 Cache
16 KB (per SMX)
256 KB
L2 Cache
256 KB
Theoretical Performance
10.80 GPixel/s
Pixel Rate
5.000 GPixel/s
27.00 GTexel/s
Texture Rate
20.00 GTexel/s
-
FP16 (half)
-
1080 GFLOPS
FP32 (float)
480.0 GFLOPS
-
FP64 (double)
20.00 GFLOPS
Graphics Processor
Granville
GPU Name
GK107
Granville PRO
GPU Variant
N13P-GS
TeraScale 2
Architecture
Kepler
TSMC
Foundry
TSMC
40 nm
Process Size
28 nm
1.04 billion
Transistors
1.27 billion
166 mm²
Die Size
118 mm²
Board Design
50W
TDP
32W
-
Suggested PSU
-
No outputs
Outputs
No outputs
-
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
1.1
-
CUDA
3.0
5.0
Shader Model
5.1
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8
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