NVIDIA GeForce GTX 490 vs NVIDIA GeForce 405 OEM
We compared two Desktop platform GPUs: 1536MB VRAM GeForce GTX 490 and 512MB VRAM GeForce 405 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA GeForce GTX 490 's Advantages
More VRAM (1536GB vs 512GB)
Larger VRAM bandwidth (164.0GB/s vs 12.64GB/s)
464 additional rendering cores
NVIDIA GeForce 405 OEM 's Advantages
Lower TDP (25W vs 365W)
Score
Benchmark
FP32 (float)
GeForce GTX 490
+2491%
1.166 TFLOPS
GeForce 405 OEM
0.045 TFLOPS
Graphics Card
Unknown
Release Date
Sep 2010
GeForce 400
Generation
GeForce 400
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
-
-
-
-
-
-
854 MHz
Memory Clock
790 MHz
Memory
1536MB
Memory Size
512MB
GDDR5
Memory Type
DDR3
384bit
Memory Bus
64bit
164.0GB/s
Bandwidth
12.64GB/s
Render Config
-
-
-
15
SM Count
2
480
Shading Units
16
60
TMUs
8
48
ROPs
4
-
-
-
-
-
-
64 KB (per SM)
L1 Cache
-
768 KB
L2 Cache
32 KB
-
-
-
Theoretical Performance
18.24 GPixel/s
Pixel Rate
2.356 GPixel/s
36.48 GTexel/s
Texture Rate
4.712 GTexel/s
-
-
-
1166 GFLOPS
FP32 (float)
44.86 GFLOPS
145.8 GFLOPS
FP64 (double)
-
Board Design
365W
TDP
25W
750 W
Suggested PSU
200 W
3x DVI
1x mini-DisplayPort
Outputs
1x DVI
1x HDMI
1x VGA
2x 8-pin
Power Connectors
None
Graphics Processor
GF100
GPU Name
GT218
GF100-375-A3
GPU Variant
GT218-300-B1
Fermi
Architecture
Tesla 2.0
TSMC
Foundry
TSMC
40 nm
Process Size
40 nm
3.1 billion
Transistors
0.26 billion
529 mm²
Die Size
57 mm²
Graphics Features
12 (11_0)
DirectX
11.1 (10_1)
4.6
OpenGL
3.3
1.1
OpenCL
1.1
N/A
Vulkan
N/A
2.0
CUDA
1.2
5.1
Shader Model
4.1
