NVIDIA GeForce GTX 490 vs ATI Radeon HD 3450 PCI
We compared two Desktop platform GPUs: 1536MB VRAM GeForce GTX 490 and 512MB VRAM Radeon HD 3450 PCI 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 6.400GB/s)
440 additional rendering cores
ATI Radeon HD 3450 PCI 's Advantages
Lower TDP (25W vs 365W)
Score
Benchmark
FP32 (float)
GeForce GTX 490
+2329%
1.166 TFLOPS
Radeon HD 3450 PCI
0.048 TFLOPS
Graphics Card
Unknown
Release Date
Jan 2008
GeForce 400
Generation
Radeon R600
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCI
Clock Speeds
-
-
-
-
-
-
854 MHz
Memory Clock
400 MHz
Memory
1536MB
Memory Size
512MB
GDDR5
Memory Type
DDR2
384bit
Memory Bus
64bit
164.0GB/s
Bandwidth
6.400GB/s
Render Config
-
Compute Units
2
15
SM Count
-
480
Shading Units
40
60
TMUs
4
48
ROPs
4
-
-
-
-
-
-
64 KB (per SM)
L1 Cache
-
768 KB
L2 Cache
64 KB
-
-
-
Theoretical Performance
18.24 GPixel/s
Pixel Rate
2.400 GPixel/s
36.48 GTexel/s
Texture Rate
2.400 GTexel/s
-
-
-
1166 GFLOPS
FP32 (float)
48.00 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 S-Video
2x 8-pin
Power Connectors
None
Graphics Processor
GF100
GPU Name
RV620
GF100-375-A3
GPU Variant
RV620 LE
Fermi
Architecture
TeraScale
TSMC
Foundry
TSMC
40 nm
Process Size
55 nm
3.1 billion
Transistors
0.181 billion
529 mm²
Die Size
67 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
