AMD Radeon HD 6490M Mac Edition vs NVIDIA GeForce 305M
We compared two Mobile platform GPUs: 256MB VRAM Radeon HD 6490M Mac Edition and 512MB VRAM GeForce 305M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon HD 6490M Mac Edition 's Advantages
Released 1 years and 4 months late
Larger VRAM bandwidth (25.41GB/s vs 11.20GB/s)
144 additional rendering cores
NVIDIA GeForce 305M 's Advantages
More VRAM (512GB vs 256GB)
Score
Benchmark
FP32 (float)
Radeon HD 6490M Mac Edition
+548%
0.24 TFLOPS
GeForce 305M
0.037 TFLOPS
Graphics Card
May 2011
Release Date
Jan 2010
Vancouver
Generation
GeForce 300M
Mobile
Type
Mobile
PCIe 2.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
-
-
-
-
-
-
794 MHz
Memory Clock
700 MHz
Memory
256MB
Memory Size
512MB
GDDR5
Memory Type
GDDR3
64bit
Memory Bus
64bit
25.41GB/s
Bandwidth
11.20GB/s
Render Config
2
Compute Units
-
-
SM Count
2
160
Shading Units
16
8
TMUs
8
4
ROPs
4
-
-
-
-
-
-
8 KB (per CU)
L1 Cache
-
128 KB
L2 Cache
32 KB
-
-
-
Theoretical Performance
3.000 GPixel/s
Pixel Rate
2.100 GPixel/s
6.000 GTexel/s
Texture Rate
4.200 GTexel/s
-
-
-
240.0 GFLOPS
FP32 (float)
36.80 GFLOPS
-
-
-
Board Design
Unknown
TDP
14W
-
-
-
Portable Device Dependent
Outputs
No outputs
-
-
-
Graphics Processor
Seymour
GPU Name
GT218
Seymour XTX M2
(216-0809000)
GPU Variant
N11M-LP1
TeraScale 2
Architecture
Tesla 2.0
TSMC
Foundry
TSMC
40 nm
Process Size
40 nm
0.37 billion
Transistors
0.26 billion
67 mm²
Die Size
57 mm²
Graphics Features
11.2 (11_0)
DirectX
11.1 (10_1)
4.4
OpenGL
3.3
1.2
OpenCL
1.1
N/A
Vulkan
N/A
-
CUDA
1.2
5.0
Shader Model
4.1
