AMD Radeon Instinct MI300A vs NVIDIA GeForce GT 640
We compared two Desktop platform GPUs: 192GB VRAM Radeon Instinct MI300A and 2GB VRAM GeForce GT 640 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon Instinct MI300A 's Advantages
Released 11 years and 6 months late
Boost Clock2100MHz
More VRAM (192GB vs 2GB)
Larger VRAM bandwidth (10.3TB/s vs 28.51GB/s)
19072 additional rendering cores
NVIDIA GeForce GT 640 's Advantages
Lower TDP (65W vs 750W)
Score
Benchmark
FP32 (float)
Radeon Instinct MI300A
+11692%
81.72 TFLOPS
GeForce GT 640
0.693 TFLOPS
Graphics Card
Dec 2023
Release Date
Jun 2012
Radeon Instinct
Generation
GeForce 600
Desktop
Type
Desktop
PCIe 5.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
1000 MHz
Base Clock
-
2100 MHz
Boost Clock
-
2525 MHz
Memory Clock
891 MHz
Memory
192GB
Memory Size
2GB
HBM3
Memory Type
DDR3
8192bit
Memory Bus
128bit
10.3TB/s
Bandwidth
28.51GB/s
Render Config
304
Compute Units
-
-
-
-
19456
Shading Units
384
1216
TMUs
32
0
ROPs
16
1216
Tensor Cores
-
-
-
-
16 KB (per CU)
L1 Cache
16 KB (per SMX)
16 MB
L2 Cache
256 KB
256 MB
L3 Cache
-
Theoretical Performance
0 MPixel/s
Pixel Rate
7.216 GPixel/s
2554 GTexel/s
Texture Rate
28.86 GTexel/s
653.7 TFLOPS
FP16 (half)
-
81.72 TFLOPS
FP32 (float)
692.7 GFLOPS
81.72 TFLOPS
FP64 (double)
28.86 GFLOPS
Board Design
750W
TDP
65W
1150 W
Suggested PSU
250 W
No outputs
Outputs
1x DVI
1x HDMI 1.4a
1x DisplayPort 1.2
None
Power Connectors
None
Graphics Processor
Aqua Vanjaram
GPU Name
GK107
-
GPU Variant
GK107-300-A2
CDNA 3.0
Architecture
Kepler
TSMC
Foundry
TSMC
5 nm
Process Size
28 nm
153 billion
Transistors
1.27 billion
1017 mm²
Die Size
118 mm²
Graphics Features
N/A
DirectX
12 (11_0)
N/A
OpenGL
4.6
3.0
OpenCL
3.0
N/A
Vulkan
1.1
-
CUDA
3.0
N/A
Shader Model
5.1
