NVIDIA GeForce GTX 490 vs ATI Radeon X800 GTO
We compared two Desktop platform GPUs: 1536MB VRAM GeForce GTX 490 and 128MB VRAM Radeon X800 GTO 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 128GB)
Larger VRAM bandwidth (164.0GB/s vs 22.40GB/s)
480 additional rendering cores
ATI Radeon X800 GTO 's Advantages
Lower TDP (49W vs 365W)
Score
Graphics Card
Unknown
Release Date
Dec 2007
GeForce 400
Generation
Radeon R400 PCIe
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 1.0 x16
Clock Speeds
-
-
-
-
-
-
854 MHz
Memory Clock
350 MHz
Memory
1536MB
Memory Size
128MB
GDDR5
Memory Type
DDR
384bit
Memory Bus
256bit
164.0GB/s
Bandwidth
22.40GB/s
Render Config
-
-
-
15
SM Count
-
480
Shading Units
-
60
TMUs
12
48
ROPs
12
-
-
-
-
-
-
64 KB (per SM)
L1 Cache
-
768 KB
L2 Cache
-
-
-
-
Theoretical Performance
18.24 GPixel/s
Pixel Rate
4.800 GPixel/s
36.48 GTexel/s
Texture Rate
4.800 GTexel/s
-
-
-
1166 GFLOPS
FP32 (float)
-
145.8 GFLOPS
FP64 (double)
-
Board Design
365W
TDP
49W
750 W
Suggested PSU
200 W
3x DVI
1x mini-DisplayPort
Outputs
1x DVI
1x VGA
1x S-Video
2x 8-pin
Power Connectors
-
Graphics Processor
GF100
GPU Name
R423
GF100-375-A3
GPU Variant
R423 GTO
Fermi
Architecture
R400
TSMC
Foundry
TSMC
40 nm
Process Size
130 nm
3.1 billion
Transistors
0.16 billion
529 mm²
Die Size
289 mm²
Graphics Features
12 (11_0)
DirectX
9.0b (9_2)
4.6
OpenGL
2.1
1.1
OpenCL
N/A
N/A
Vulkan
N/A
2.0
CUDA
-
5.1
Shader Model
-
