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GPU Comparison
NVIDIA GeForce GT 645 OEM vs AMD Radeon RX 7950 XTX
NVIDIA GeForce GT 645 OEM vs AMD Radeon RX 7950 XTX
VS
NVIDIA GeForce GT 645 OEM
AMD Radeon RX 7950 XTX
We compared two Desktop platform GPUs: 1024MB VRAM GeForce GT 645 OEM and 24GB VRAM Radeon RX 7950 XTX to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA GeForce GT 645 OEM 's Advantages
Lower TDP (102W vs 355W)
AMD Radeon RX 7950 XTX 's Advantages
Boost Clock3300MHz
More VRAM (24GB vs 1GB)
Larger VRAM bandwidth (960.0GB/s vs 91.87GB/s)
5856 additional rendering cores
Score
Benchmark
FP32 (float)
GeForce GT 645 OEM
0.894 TFLOPS
Radeon RX 7950 XTX
+8971%
81.1 TFLOPS
GeForce GT 645 OEM
VS
Radeon RX 7950 XTX
Graphics Card
Apr 2012
Release Date
Unknown
GeForce 600
Generation
Navi III
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 4.0 x16
Clock Speeds
-
Base Clock
2200 MHz
-
Boost Clock
3300 MHz
957 MHz
Memory Clock
2500 MHz
Memory
1024MB
Memory Size
24GB
GDDR5
Memory Type
GDDR6
192bit
Memory Bus
384bit
91.87GB/s
Bandwidth
960.0GB/s
Render Config
6
SM Count
-
-
Compute Units
96
288
Shading Units
6144
48
TMUs
384
24
ROPs
192
-
Tensor Cores
-
-
RT Cores
96
64 KB (per SM)
L1 Cache
256 KB per Array
384 KB
L2 Cache
6 MB
Theoretical Performance
9.312 GPixel/s
Pixel Rate
633.6 GPixel/s
37.25 GTexel/s
Texture Rate
1267 GTexel/s
-
FP16 (half)
162.2 TFLOPS
894.0 GFLOPS
FP32 (float)
81.10 TFLOPS
74.50 GFLOPS
FP64 (double)
2.534 TFLOPS
Graphics Processor
GF114
GPU Name
Navi 31
-
GPU Variant
Navi 31 XTX+
Fermi 2.0
Architecture
RDNA 3.0
TSMC
Foundry
TSMC
40 nm
Process Size
5 nm
1.95 billion
Transistors
57.7 billion
332 mm²
Die Size
529 mm²
Board Design
102W
TDP
355W
300 W
Suggested PSU
750 W
2x DVI 1x mini-HDMI 1.3a
Outputs
1x HDMI 2.1a 2x DisplayPort 2.1 1x USB Type-C
-
Power Connectors
2x 8-pin
Graphics Features
12 (11_0)
DirectX
12 Ultimate (12_2)
4.6
OpenGL
4.6
1.1
OpenCL
2.2
N/A
Vulkan
1.3
2.1
CUDA
-
5.1
Shader Model
6.7
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