NVIDIA GeForce GTX 485M vs ATI Mobility Radeon HD 4830
We compared two Mobile platform GPUs: 2GB VRAM GeForce GTX 485M and 1024MB VRAM Mobility Radeon HD 4830 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA GeForce GTX 485M 's Advantages
Released 1 years and 10 months late
More VRAM (2GB vs 1024GB)
Larger VRAM bandwidth (96.00GB/s vs 25.60GB/s)
ATI Mobility Radeon HD 4830 's Advantages
256 additional rendering cores
Score
Benchmark
FP32 (float)
GeForce GTX 485M
+37%
0.883 TFLOPS
Mobility Radeon HD 4830
0.64 TFLOPS
Graphics Card
Jan 2011
Release Date
Mar 2009
GeForce 400M
Generation
M9x
Mobile
Type
Mobile
MXM-B (3.0)
Bus Interface
PCIe 2.0 x16
Clock Speeds
-
-
-
-
-
-
750 MHz
Memory Clock
800 MHz
Memory
2GB
Memory Size
1024MB
GDDR5
Memory Type
GDDR3
256bit
Memory Bus
128bit
96.00GB/s
Bandwidth
25.60GB/s
Render Config
-
Compute Units
8
8
SM Count
-
384
Shading Units
640
64
TMUs
32
32
ROPs
16
-
-
-
-
-
-
64 KB (per SM)
L1 Cache
16 KB (per CU)
512 KB
L2 Cache
128 KB
-
-
-
Theoretical Performance
9.200 GPixel/s
Pixel Rate
8.000 GPixel/s
36.80 GTexel/s
Texture Rate
16.00 GTexel/s
-
-
-
883.2 GFLOPS
FP32 (float)
640.0 GFLOPS
73.60 GFLOPS
FP64 (double)
128.0 GFLOPS
Board Design
100W
TDP
Unknown
-
-
-
No outputs
Outputs
Portable Device Dependent
None
Power Connectors
-
Graphics Processor
GF104
GPU Name
M97
N12E-GTX-A1
GPU Variant
M97 M2
(216-0731004)
Fermi
Architecture
TeraScale
TSMC
Foundry
TSMC
40 nm
Process Size
40 nm
1.95 billion
Transistors
0.826 billion
332 mm²
Die Size
137 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
2.1
CUDA
-
5.1
Shader Model
4.1
