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GPU Comparison
NVIDIA GeForce RTX 4070 vs NVIDIA GeForce GTX 645 OEM
NVIDIA GeForce RTX 4070 vs NVIDIA GeForce GTX 645 OEM
VS
NVIDIA GeForce RTX 4070
NVIDIA GeForce GTX 645 OEM
We compared two Desktop platform GPUs: 12GB VRAM GeForce RTX 4070 and 1024MB VRAM GeForce GTX 645 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA GeForce RTX 4070 's Advantages
Released 10 years late
Boost Clock2475MHz
More VRAM (12GB vs 1GB)
Larger VRAM bandwidth (504.2GB/s vs 64.00GB/s)
5312 additional rendering cores
NVIDIA GeForce GTX 645 OEM 's Advantages
Lower TDP (65W vs 200W)
Score
Benchmark
FP32 (float)
GeForce RTX 4070
+2971%
29.15 TFLOPS
GeForce GTX 645 OEM
0.949 TFLOPS
GeForce RTX 4070
VS
GeForce GTX 645 OEM
Graphics Card
Apr 2023
Release Date
Apr 2013
GeForce 40
Generation
GeForce 600
Desktop
Type
Desktop
PCIe 4.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
1920 MHz
Base Clock
-
2475 MHz
Boost Clock
-
1313 MHz
Memory Clock
1000 MHz
Memory
12GB
Memory Size
1024MB
GDDR6X
Memory Type
GDDR5
192bit
Memory Bus
128bit
504.2GB/s
Bandwidth
64.00GB/s
Render Config
46
SM Count
-
-
Compute Units
-
5888
Shading Units
576
184
TMUs
48
64
ROPs
16
184
Tensor Cores
-
46
RT Cores
-
128 KB (per SM)
L1 Cache
16 KB (per SMX)
36 MB
L2 Cache
256 KB
Theoretical Performance
158.4 GPixel/s
Pixel Rate
9.888 GPixel/s
455.4 GTexel/s
Texture Rate
39.55 GTexel/s
29.15 TFLOPS
FP16 (half)
-
29.15 TFLOPS
FP32 (float)
949.2 GFLOPS
455.4 GFLOPS
FP64 (double)
39.55 GFLOPS
Graphics Processor
AD104
GPU Name
GK106
AD104-250-A1
GPU Variant
GK106-200-A1
Ada Lovelace
Architecture
Kepler
TSMC
Foundry
TSMC
5 nm
Process Size
28 nm
35.8 billion
Transistors
2.54 billion
295 mm²
Die Size
221 mm²
Board Design
200W
TDP
65W
550 W
Suggested PSU
250 W
1x HDMI 2.1 3x DisplayPort 1.4a
Outputs
1x DVI 1x HDMI 1.4a 1x DisplayPort 1.2
1x 16-pin
Power Connectors
None
Graphics Features
12 Ultimate (12_2)
DirectX
12 (11_0)
4.6
OpenGL
4.6
3.0
OpenCL
3.0
1.3
Vulkan
1.1
8.9
CUDA
3.0
6.7
Shader Model
5.1
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