Iris Xe MAX Graphics vs GeForce GT 640M Mac Edition
We compared two Mobile platform GPUs: 4GB VRAM Iris Xe MAX Graphics 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
Iris Xe MAX Graphics Advantages
Released 7 years and 8 months late
Boost Clock1650MHz
More VRAM (4GB vs 512GB)
Larger VRAM bandwidth (68.26GB/s vs 40.00GB/s)
384 additional rendering cores
Lower TDP (25W vs 32W)
Score
Benchmark
FP32 (float)
Iris Xe MAX Graphics
+343%
2534
GeForce GT 640M Mac Edition
572
Graphics Card
Oct 2020
Release Date
Feb 2013
HD Graphics-M
Generation
GeForce 600M
Mobile
Type
Mobile
PCIe 4.0 x8
Bus Interface
PCIe 3.0 x16
Clock Speeds
300 MHz
Base Clock
-
1650 MHz
Boost Clock
-
2133 MHz
Memory Clock
1250 MHz
Memory
4GB
Memory Size
512MB
LPDDR4X
Memory Type
GDDR5
128bit
Memory Bus
64bit
68.26GB/s
Bandwidth
40.00GB/s
Render Config
768
Shading Units
384
48
TMUs
32
24
ROPs
8
-
L1 Cache
16 KB (per SMX)
1024 KB
L2 Cache
128 KB
16 MB
L3 Cache
-
Theoretical Performance
39.60 GPixel/s
Pixel Rate
5.960 GPixel/s
79.20 GTexel/s
Texture Rate
23.84 GTexel/s
5.069 TFLOPS
FP16 (half)
-
2.534 TFLOPS
FP32 (float)
572.2 GFLOPS
633.6 GFLOPS
FP64 (double)
23.84 GFLOPS
Board Design
25W
TDP
32W
No outputs
Outputs
No outputs
Graphics Processor
DG1
GPU Name
GK107
-
GPU Variant
N13P-GS
Generation 12.1
Architecture
Kepler
Intel
Foundry
TSMC
10 nm
Process Size
28 nm
Unknown
Transistors
1.27 billion
95 mm²
Die Size
118 mm²
Graphics Features
12 (12_1)
DirectX
12 (11_0)
4.6
OpenGL
4.6
3.0
OpenCL
3.0
1.3
Vulkan
1.1
-
CUDA
3.0
6.4
Shader Model
5.1
