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GPU Comparison
NVIDIA GeForce GTX 1080 Ti 10 GB vs NVIDIA GeForce GT 640 OEM Rebrand
NVIDIA GeForce GTX 1080 Ti 10 GB vs NVIDIA GeForce GT 640 OEM Rebrand
VS
NVIDIA GeForce GTX 1080 Ti 10 GB
NVIDIA GeForce GT 640 OEM Rebrand
We compared two Desktop platform GPUs: 10GB VRAM GeForce GTX 1080 Ti 10 GB and 1536MB VRAM GeForce GT 640 OEM Rebrand to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA GeForce GTX 1080 Ti 10 GB 's Advantages
Boost Clock1670MHz
More VRAM (10GB vs 1GB)
Larger VRAM bandwidth (440.3GB/s vs 38.40GB/s)
3056 additional rendering cores
NVIDIA GeForce GT 640 OEM Rebrand 's Advantages
Lower TDP (75W vs 250W)
Score
Benchmark
FP32 (float)
GeForce GTX 1080 Ti 10 GB
+2475%
10.69 TFLOPS
GeForce GT 640 OEM Rebrand
0.415 TFLOPS
GeForce GTX 1080 Ti 10 GB
VS
GeForce GT 640 OEM Rebrand
Graphics Card
Unknown
Release Date
Apr 2012
GeForce 10
Generation
GeForce 600
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
1557 MHz
Base Clock
-
1670 MHz
Boost Clock
-
1376 MHz
Memory Clock
800 MHz
Memory
10GB
Memory Size
1536MB
GDDR5X
Memory Type
DDR3
320bit
Memory Bus
192bit
440.3GB/s
Bandwidth
38.40GB/s
Render Config
25
SM Count
3
-
Compute Units
-
3200
Shading Units
144
200
TMUs
24
80
ROPs
24
-
Tensor Cores
-
-
RT Cores
-
48 KB (per SM)
L1 Cache
64 KB (per SM)
0 MB
L2 Cache
384 KB
Theoretical Performance
133.6 GPixel/s
Pixel Rate
4.320 GPixel/s
334.0 GTexel/s
Texture Rate
17.28 GTexel/s
167.0 GFLOPS
FP16 (half)
-
10.69 TFLOPS
FP32 (float)
414.7 GFLOPS
334.0 GFLOPS
FP64 (double)
34.56 GFLOPS
Graphics Processor
GP102
GPU Name
GF116
-
GPU Variant
GF116-150-A1
Pascal
Architecture
Fermi 2.0
TSMC
Foundry
TSMC
16 nm
Process Size
40 nm
11.8 billion
Transistors
1.17 billion
471 mm²
Die Size
238 mm²
Board Design
250W
TDP
75W
600 W
Suggested PSU
250 W
1x HDMI 2.0 3x DisplayPort 1.4a
Outputs
2x DVI 1x mini-HDMI 1.3a
1x 6-pin + 1x 8-pin
Power Connectors
None
Graphics Features
12 (12_1)
DirectX
12 (11_0)
4.6
OpenGL
4.6
3.0
OpenCL
1.1
1.3
Vulkan
N/A
6.1
CUDA
2.1
6.7
Shader Model
5.1
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