NVIDIA GeForce GTX 490 vs NVIDIA GeForce 6800 GS
We compared two Desktop platform GPUs: 1536MB VRAM GeForce GTX 490 and 256MB VRAM GeForce 6800 GS 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 256GB)
Larger VRAM bandwidth (164.0GB/s vs 32.00GB/s)
480 additional rendering cores
Score
Graphics Card
Unknown
Release Date
Nov 2005
GeForce 400
Generation
GeForce 6 PCIe
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 1.0 x16
Clock Speeds
-
-
-
-
-
-
854 MHz
Memory Clock
500 MHz
Memory
1536MB
Memory Size
256MB
GDDR5
Memory Type
GDDR3
384bit
Memory Bus
256bit
164.0GB/s
Bandwidth
32.00GB/s
Render Config
-
-
-
15
SM Count
-
480
Shading Units
-
60
TMUs
12
48
ROPs
8
-
-
-
-
-
-
64 KB (per SM)
L1 Cache
-
768 KB
L2 Cache
-
-
-
-
Theoretical Performance
18.24 GPixel/s
Pixel Rate
3.400 GPixel/s
36.48 GTexel/s
Texture Rate
5.100 GTexel/s
-
-
-
1166 GFLOPS
FP32 (float)
-
145.8 GFLOPS
FP64 (double)
-
Board Design
365W
TDP
Unknown
750 W
Suggested PSU
200 W
3x DVI
1x mini-DisplayPort
Outputs
1x DVI
1x VGA
1x S-Video
2x 8-pin
Power Connectors
1x 6-pin
Graphics Processor
GF100
GPU Name
NV41
GF100-375-A3
GPU Variant
-
Fermi
Architecture
Curie
TSMC
Foundry
TSMC
40 nm
Process Size
130 nm
3.1 billion
Transistors
0.19 billion
529 mm²
Die Size
225 mm²
Graphics Features
12 (11_0)
DirectX
9.0c (9_3)
4.6
OpenGL
2.0 (full)
2.1 (partial)
1.1
OpenCL
N/A
N/A
Vulkan
N/A
2.0
CUDA
-
5.1
Shader Model
3.0
