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GPU Comparison
NVIDIA GeForce GT 640 Rev. 2 vs NVIDIA GeForce 8800 GTS 320
NVIDIA GeForce GT 640 Rev. 2 vs NVIDIA GeForce 8800 GTS 320
VS
NVIDIA GeForce GT 640 Rev. 2
NVIDIA GeForce 8800 GTS 320
We compared two Desktop platform GPUs: 1024MB VRAM GeForce GT 640 Rev. 2 and 320MB VRAM GeForce 8800 GTS 320 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA GeForce GT 640 Rev. 2 's Advantages
Released 6 years and 3 months late
More VRAM (1024GB vs 320GB)
288 additional rendering cores
Lower TDP (49W vs 143W)
NVIDIA GeForce 8800 GTS 320 's Advantages
Larger VRAM bandwidth (63.36GB/s vs 40.06GB/s)
Score
Benchmark
FP32 (float)
GeForce GT 640 Rev. 2
+252%
0.803 TFLOPS
GeForce 8800 GTS 320
0.228 TFLOPS
GeForce GT 640 Rev. 2
VS
GeForce 8800 GTS 320
Graphics Card
May 2013
Release Date
Feb 2007
GeForce 600
Generation
GeForce 8
Desktop
Type
Desktop
PCIe 2.0 x8
Bus Interface
PCIe 1.0 x16
Clock Speeds
-
Base Clock
-
-
Boost Clock
-
1252 MHz
Memory Clock
792 MHz
Memory
1024MB
Memory Size
320MB
GDDR5
Memory Type
GDDR3
64bit
Memory Bus
320bit
40.06GB/s
Bandwidth
63.36GB/s
Render Config
-
SM Count
12
-
Compute Units
-
384
Shading Units
96
32
TMUs
24
8
ROPs
20
-
Tensor Cores
-
-
RT Cores
-
16 KB (per SMX)
L1 Cache
-
512 KB
L2 Cache
80 KB
Theoretical Performance
8.368 GPixel/s
Pixel Rate
10.26 GPixel/s
33.47 GTexel/s
Texture Rate
24.62 GTexel/s
-
FP16 (half)
-
803.3 GFLOPS
FP32 (float)
228.1 GFLOPS
33.47 GFLOPS
FP64 (double)
-
Graphics Processor
GK208
GPU Name
G80
GK208-400-A1
GPU Variant
G80-100-K0-A2
Kepler 2.0
Architecture
Tesla
TSMC
Foundry
TSMC
28 nm
Process Size
90 nm
1.02 billion
Transistors
0.681 billion
87 mm²
Die Size
484 mm²
Board Design
49W
TDP
143W
200 W
Suggested PSU
300 W
1x DVI 1x HDMI 1.4a 1x VGA
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 (1.0)
1.1
Vulkan
N/A
3.5
CUDA
1.0
5.1
Shader Model
4.0
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2
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3
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4
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5
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6
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7
NVIDIA GeForce GT 640 Rev. 2 vs AMD Radeon HD 7770 GHz Edition
8
NVIDIA GeForce GT 640 Rev. 2 vs NVIDIA GeForce 9600 GSO
9
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10
NVIDIA GeForce GT 640 Rev. 2 vs ATI Radeon X1650 GTO
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