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GPU Comparison
AMD Radeon RX 6800M vs NVIDIA GeForce GT 640M Mac Edition
AMD Radeon RX 6800M vs NVIDIA GeForce GT 640M Mac Edition
VS
AMD Radeon RX 6800M
NVIDIA GeForce GT 640M Mac Edition
We compared two Mobile platform GPUs: 12GB VRAM Radeon RX 6800M and 512MB VRAM GeForce GT 640M Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon RX 6800M 's Advantages
Released 8 years and 3 months late
Boost Clock2390MHz
Larger VRAM bandwidth (384.0GB/s vs 40.00GB/s)
2176 additional rendering cores
NVIDIA GeForce GT 640M Mac Edition 's Advantages
Lower TDP (32W vs 145W)
Score
Benchmark
FP32 (float)
Radeon RX 6800M
+2039%
12.24 TFLOPS
GeForce GT 640M Mac Edition
0.572 TFLOPS
Radeon RX 6800M
VS
GeForce GT 640M Mac Edition
Graphics Card
May 2021
Release Date
Feb 2013
Mobility Radeon
Generation
GeForce 600M
Mobile
Type
Mobile
PCIe 4.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
2116 MHz
Base Clock
-
2390 MHz
Boost Clock
-
2000 MHz
Memory Clock
1250 MHz
Memory
12GB
Memory Size
512MB
GDDR6
Memory Type
GDDR5
192bit
Memory Bus
64bit
384.0GB/s
Bandwidth
40.00GB/s
Render Config
-
SM Count
-
40
Compute Units
-
2560
Shading Units
384
160
TMUs
32
64
ROPs
8
-
Tensor Cores
-
40
RT Cores
-
128 KB per Array
L1 Cache
16 KB (per SMX)
3 MB
L2 Cache
128 KB
Theoretical Performance
153.0 GPixel/s
Pixel Rate
5.960 GPixel/s
382.4 GTexel/s
Texture Rate
23.84 GTexel/s
24.47 TFLOPS
FP16 (half)
-
12.24 TFLOPS
FP32 (float)
572.2 GFLOPS
764.8 GFLOPS
FP64 (double)
23.84 GFLOPS
Graphics Processor
Navi 22
GPU Name
GK107
Navi 22 XTM
GPU Variant
N13P-GS
RDNA 2.0
Architecture
Kepler
TSMC
Foundry
TSMC
7 nm
Process Size
28 nm
17.2 billion
Transistors
1.27 billion
335 mm²
Die Size
118 mm²
Board Design
145W
TDP
32W
-
Suggested PSU
-
No outputs
Outputs
No outputs
None
Power Connectors
-
Graphics Features
12 Ultimate (12_2)
DirectX
12 (11_0)
4.6
OpenGL
4.6
2.1
OpenCL
3.0
1.3
Vulkan
1.1
-
CUDA
3.0
6.5
Shader Model
5.1
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