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GPU Comparison
NVIDIA GeForce GT 640 OEM vs NVIDIA GeForce 8800 GT
NVIDIA GeForce GT 640 OEM vs NVIDIA GeForce 8800 GT
VS
NVIDIA GeForce GT 640 OEM
NVIDIA GeForce 8800 GT
We compared two Desktop platform GPUs: 2GB VRAM GeForce GT 640 OEM and 512MB VRAM GeForce 8800 GT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA GeForce GT 640 OEM 's Advantages
Released 4 years and 6 months late
272 additional rendering cores
Lower TDP (50W vs 125W)
NVIDIA GeForce 8800 GT 's Advantages
Larger VRAM bandwidth (57.60GB/s vs 28.51GB/s)
Score
Benchmark
FP32 (float)
GeForce GT 640 OEM
+82%
0.612 TFLOPS
GeForce 8800 GT
0.336 TFLOPS
GeForce GT 640 OEM
VS
GeForce 8800 GT
Graphics Card
Apr 2012
Release Date
Oct 2007
GeForce 600
Generation
GeForce 8
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
-
Base Clock
-
-
Boost Clock
-
891 MHz
Memory Clock
900 MHz
Memory
2GB
Memory Size
512MB
DDR3
Memory Type
GDDR3
128bit
Memory Bus
256bit
28.51GB/s
Bandwidth
57.60GB/s
Render Config
-
SM Count
14
-
Compute Units
-
384
Shading Units
112
32
TMUs
56
16
ROPs
16
-
Tensor Cores
-
-
RT Cores
-
16 KB (per SMX)
L1 Cache
-
256 KB
L2 Cache
64 KB
Theoretical Performance
6.376 GPixel/s
Pixel Rate
9.600 GPixel/s
25.50 GTexel/s
Texture Rate
33.60 GTexel/s
-
FP16 (half)
-
612.1 GFLOPS
FP32 (float)
336.0 GFLOPS
25.50 GFLOPS
FP64 (double)
-
Graphics Processor
GK107
GPU Name
G92
GK107-320-A2
GPU Variant
G92-270-A2
Kepler
Architecture
Tesla
TSMC
Foundry
TSMC
28 nm
Process Size
65 nm
1.27 billion
Transistors
0.754 billion
118 mm²
Die Size
324 mm²
Board Design
50W
TDP
125W
250 W
Suggested PSU
300 W
1x DVI 1x HDMI 1.4a 1x DisplayPort 1.2
Outputs
2x DVI 1x S-Video
None
Power Connectors
1x 6-pin
Graphics Features
12 (11_0)
DirectX
11.1 (10_0)
4.6
OpenGL
3.3
3.0
OpenCL
1.1
1.1
Vulkan
N/A
3.0
CUDA
1.1
5.1
Shader Model
4.0
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