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GPU Comparison
AMD Radeon HD 8790M vs NVIDIA GeForce GT 640M Mac Edition
AMD Radeon HD 8790M vs NVIDIA GeForce GT 640M Mac Edition
VS
AMD Radeon HD 8790M
NVIDIA GeForce GT 640M Mac Edition
We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 8790M 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 HD 8790M 's Advantages
Boost Clock900MHz
Larger VRAM bandwidth (64.00GB/s vs 40.00GB/s)
Score
Benchmark
FP32 (float)
Radeon HD 8790M
+20%
0.691 TFLOPS
GeForce GT 640M Mac Edition
0.572 TFLOPS
Radeon HD 8790M
VS
GeForce GT 640M Mac Edition
Graphics Card
Apr 2013
Release Date
Feb 2013
Solar System
Generation
GeForce 600M
Mobile
Type
Mobile
MXM-A (3.0)
Bus Interface
PCIe 3.0 x16
Clock Speeds
850 MHz
Base Clock
-
900 MHz
Boost Clock
-
1000 MHz
Memory Clock
1250 MHz
Memory
2GB
Memory Size
512MB
GDDR5
Memory Type
GDDR5
128bit
Memory Bus
64bit
64.00GB/s
Bandwidth
40.00GB/s
Render Config
-
SM Count
-
6
Compute Units
-
384
Shading Units
384
24
TMUs
32
8
ROPs
8
-
Tensor Cores
-
-
RT Cores
-
16 KB (per CU)
L1 Cache
16 KB (per SMX)
256 KB
L2 Cache
128 KB
Theoretical Performance
7.200 GPixel/s
Pixel Rate
5.960 GPixel/s
21.60 GTexel/s
Texture Rate
23.84 GTexel/s
-
FP16 (half)
-
691.2 GFLOPS
FP32 (float)
572.2 GFLOPS
43.20 GFLOPS
FP64 (double)
23.84 GFLOPS
Graphics Processor
Mars
GPU Name
GK107
Mars M2 XTX (216-0842036)
GPU Variant
N13P-GS
GCN 1.0
Architecture
Kepler
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
0.95 billion
Transistors
1.27 billion
77 mm²
Die Size
118 mm²
Board Design
Unknown
TDP
32W
-
Suggested PSU
-
Portable Device Dependent
Outputs
No outputs
None
Power Connectors
-
Graphics Features
12 (11_1)
DirectX
12 (11_0)
4.6
OpenGL
4.6
2.1 (1.2)
OpenCL
3.0
1.2.170
Vulkan
1.1
-
CUDA
3.0
6.5 (5.1)
Shader Model
5.1
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