NVIDIA GeForce GTX 490 vs ATI Radeon HD 4670 X2
We compared two Desktop platform GPUs: 1536MB VRAM GeForce GTX 490 and 512MB VRAM Radeon HD 4670 X2 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 22.40GB/s)
160 additional rendering cores
ATI Radeon HD 4670 X2 's Advantages
Lower TDP (118W vs 365W)
Score
Benchmark
FP32 (float)
GeForce GTX 490
+142%
1.166 TFLOPS
Radeon HD 4670 X2
0.48 TFLOPS
Graphics Card
Unknown
Release Date
Sep 2008
GeForce 400
Generation
Radeon R700
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
-
-
-
-
-
-
854 MHz
Memory Clock
700 MHz
Memory
1536MB
Memory Size
512MB
GDDR5
Memory Type
GDDR3
384bit
Memory Bus
128bit
164.0GB/s
Bandwidth
22.40GB/s
Render Config
-
Compute Units
4
15
SM Count
-
480
Shading Units
320
60
TMUs
32
48
ROPs
8
-
-
-
-
-
-
64 KB (per SM)
L1 Cache
16 KB (per CU)
768 KB
L2 Cache
128 KB
-
-
-
Theoretical Performance
18.24 GPixel/s
Pixel Rate
6.000 GPixel/s
36.48 GTexel/s
Texture Rate
24.00 GTexel/s
-
-
-
1166 GFLOPS
FP32 (float)
480.0 GFLOPS
145.8 GFLOPS
FP64 (double)
-
Board Design
365W
TDP
118W
750 W
Suggested PSU
300 W
3x DVI
1x mini-DisplayPort
Outputs
4x DVI
2x 8-pin
Power Connectors
1x 6-pin
Graphics Processor
GF100
GPU Name
RV730
GF100-375-A3
GPU Variant
RV730 XT
(215-0719047)
Fermi
Architecture
TeraScale
TSMC
Foundry
TSMC
40 nm
Process Size
55 nm
3.1 billion
Transistors
0.514 billion
529 mm²
Die Size
146 mm²
Graphics Features
12 (11_0)
DirectX
10.1 (10_1)
4.6
OpenGL
3.3
1.1
OpenCL
1.1
N/A
Vulkan
N/A
2.0
CUDA
-
5.1
Shader Model
4.1
