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GPU Comparison
AMD Radeon HD 6870M vs NVIDIA GeForce GT 640M LE
AMD Radeon HD 6870M vs NVIDIA GeForce GT 640M LE
VS
AMD Radeon HD 6870M
NVIDIA GeForce GT 640M LE
We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 6870M and 2GB VRAM GeForce GT 640M LE to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon HD 6870M 's Advantages
Larger VRAM bandwidth (64.00GB/s vs 50.24GB/s)
704 additional rendering cores
NVIDIA GeForce GT 640M LE 's Advantages
Released 1 years and 4 months late
More VRAM (2GB vs 1GB)
Lower TDP (32W vs 50W)
Score
Benchmark
FP32 (float)
Radeon HD 6870M
+273%
1.08 TFLOPS
GeForce GT 640M LE
0.289 TFLOPS
Radeon HD 6870M
VS
GeForce GT 640M LE
Graphics Card
Jan 2011
Release Date
May 2012
Vancouver
Generation
GeForce 600M
Mobile
Type
Mobile
MXM-B (3.0)
Bus Interface
PCIe 2.0 x16
Clock Speeds
-
Base Clock
-
-
Boost Clock
-
1000 MHz
Memory Clock
785 MHz
Memory
1024MB
Memory Size
2GB
GDDR5
Memory Type
GDDR5
128bit
Memory Bus
128bit
64.00GB/s
Bandwidth
50.24GB/s
Render Config
-
SM Count
2
10
Compute Units
-
800
Shading Units
96
40
TMUs
16
16
ROPs
4
-
Tensor Cores
-
-
RT Cores
-
8 KB (per CU)
L1 Cache
64 KB (per SM)
256 KB
L2 Cache
256 KB
Theoretical Performance
10.80 GPixel/s
Pixel Rate
3.012 GPixel/s
27.00 GTexel/s
Texture Rate
12.05 GTexel/s
-
FP16 (half)
-
1080 GFLOPS
FP32 (float)
289.0 GFLOPS
-
FP64 (double)
24.08 GFLOPS
Graphics Processor
Granville
GPU Name
GF108
Granville XT (216-0769024)
GPU Variant
-
TeraScale 2
Architecture
Fermi
TSMC
Foundry
TSMC
40 nm
Process Size
40 nm
1.04 billion
Transistors
0.585 billion
166 mm²
Die Size
116 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
1.1
N/A
Vulkan
N/A
-
CUDA
2.1
5.0
Shader Model
5.1
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