NVIDIA GeForce 605 OEM vs NVIDIA GeForce GT 640 OEM Rebrand
We compared two Desktop platform GPUs: 512MB VRAM GeForce 605 OEM 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 605 OEM 's Advantages
Lower TDP (25W vs 75W)
NVIDIA GeForce GT 640 OEM Rebrand 's Advantages
More VRAM (1536GB vs 512GB)
Larger VRAM bandwidth (38.40GB/s vs 14.35GB/s)
96 additional rendering cores
Score
Benchmark
FP32 (float)
GeForce 605 OEM
0.1 TFLOPS
GeForce GT 640 OEM Rebrand
+315%
0.415 TFLOPS
Graphics Card
Apr 2012
Release Date
Apr 2012
GeForce 600
Generation
GeForce 600
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
-
-
-
-
-
-
897 MHz
Memory Clock
800 MHz
Memory
512MB
Memory Size
1536MB
DDR3
Memory Type
DDR3
64bit
Memory Bus
192bit
14.35GB/s
Bandwidth
38.40GB/s
Render Config
-
-
-
1
SM Count
3
48
Shading Units
144
8
TMUs
24
4
ROPs
24
-
-
-
-
-
-
64 KB (per SM)
L1 Cache
64 KB (per SM)
128 KB
L2 Cache
384 KB
-
-
-
Theoretical Performance
1.046 GPixel/s
Pixel Rate
4.320 GPixel/s
4.184 GTexel/s
Texture Rate
17.28 GTexel/s
-
-
-
100.4 GFLOPS
FP32 (float)
414.7 GFLOPS
8.368 GFLOPS
FP64 (double)
34.56 GFLOPS
Board Design
25W
TDP
75W
200 W
Suggested PSU
250 W
1x DVI
1x HDMI 1.3a
1x VGA
Outputs
2x DVI
1x mini-HDMI 1.3a
None
Power Connectors
None
Graphics Processor
GF119
GPU Name
GF116
GF119-200-A1
GPU Variant
GF116-150-A1
Fermi 2.0
Architecture
Fermi 2.0
TSMC
Foundry
TSMC
40 nm
Process Size
40 nm
0.292 billion
Transistors
1.17 billion
79 mm²
Die Size
238 mm²
Graphics Features
12 (11_0)
DirectX
12 (11_0)
4.6
OpenGL
4.6
1.1
OpenCL
1.1
N/A
Vulkan
N/A
2.1
CUDA
2.1
5.1
Shader Model
5.1
