NVIDIA GeForce GTX 490 vs ATI Radeon HD 3650
We compared two Desktop platform GPUs: 1536MB VRAM GeForce GTX 490 and 256MB VRAM Radeon HD 3650 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 25.60GB/s)
360 additional rendering cores
ATI Radeon HD 3650 's Advantages
Lower TDP (65W vs 365W)
Score
Benchmark
FP32 (float)
GeForce GTX 490
+570%
1.166 TFLOPS
Radeon HD 3650
0.174 TFLOPS
Graphics Card
Unknown
Release Date
Jan 2008
GeForce 400
Generation
Radeon R600
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
-
-
-
-
-
-
854 MHz
Memory Clock
800 MHz
Memory
1536MB
Memory Size
256MB
GDDR5
Memory Type
GDDR3
384bit
Memory Bus
128bit
164.0GB/s
Bandwidth
25.60GB/s
Render Config
-
Compute Units
3
15
SM Count
-
480
Shading Units
120
60
TMUs
8
48
ROPs
4
-
-
-
-
-
-
64 KB (per SM)
L1 Cache
-
768 KB
L2 Cache
128 KB
-
-
-
Theoretical Performance
18.24 GPixel/s
Pixel Rate
2.900 GPixel/s
36.48 GTexel/s
Texture Rate
5.800 GTexel/s
-
-
-
1166 GFLOPS
FP32 (float)
174.0 GFLOPS
145.8 GFLOPS
FP64 (double)
-
Board Design
365W
TDP
65W
750 W
Suggested PSU
250 W
3x DVI
1x mini-DisplayPort
Outputs
2x DVI
1x S-Video
2x 8-pin
Power Connectors
None
Graphics Processor
GF100
GPU Name
RV635
GF100-375-A3
GPU Variant
RV635 PRO
(215-0682008)
Fermi
Architecture
TeraScale
TSMC
Foundry
TSMC
40 nm
Process Size
55 nm
3.1 billion
Transistors
0.378 billion
529 mm²
Die Size
135 mm²
Graphics Features
12 (11_0)
DirectX
10.1 (10_1)
4.6
OpenGL
3.3
1.1
OpenCL
N/A
N/A
Vulkan
N/A
2.0
CUDA
-
5.1
Shader Model
4.1
