Home GPU Comparison AMD Radeon HD 6490M Mac Edition vs AMD Radeon HD 6750M

AMD Radeon HD 6490M Mac Edition vs AMD Radeon HD 6750M

We compared two Mobile platform GPUs: 256MB VRAM Radeon HD 6490M Mac Edition and 1024MB VRAM Radeon HD 6750M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6750M 's Advantages
More VRAM (1024GB vs 256GB)
Larger VRAM bandwidth (25.60GB/s vs 25.41GB/s)
320 additional rendering cores

Score

Benchmark

FP32 (float)
Radeon HD 6490M Mac Edition
0.24 TFLOPS
Radeon HD 6750M +140%
0.576 TFLOPS
VS

Graphics Card

May 2011
Release Date
Jan 2011
Vancouver
Generation
Vancouver
Mobile
Type
Mobile
PCIe 2.0 x16
Bus Interface
MXM-A (3.0)

Clock Speeds

-
-
-
-
-
-
794 MHz
Memory Clock
800 MHz

Memory

256MB
Memory Size
1024MB
GDDR5
Memory Type
GDDR3
64bit
Memory Bus
128bit
25.41GB/s
Bandwidth
25.60GB/s

Render Config

2
Compute Units
6
-
-
-
160
Shading Units
480
8
TMUs
24
4
ROPs
8
-
-
-
-
-
-
8 KB (per CU)
L1 Cache
8 KB (per CU)
128 KB
L2 Cache
256 KB
-
-
-

Theoretical Performance

3.000 GPixel/s
Pixel Rate
4.800 GPixel/s
6.000 GTexel/s
Texture Rate
14.40 GTexel/s
-
-
-
240.0 GFLOPS
FP32 (float)
576.0 GFLOPS
-
-
-

Board Design

Unknown
TDP
35W
-
-
-
Portable Device Dependent
Outputs
No outputs
-
-
-

Graphics Processor

Seymour
GPU Name
Whistler
Seymour XTX M2 (216-0809000)
GPU Variant
Whistler PRO (216-0810005)
TeraScale 2
Architecture
TeraScale 2
TSMC
Foundry
TSMC
40 nm
Process Size
40 nm
0.37 billion
Transistors
0.716 billion
67 mm²
Die Size
104 mm²

Graphics Features

11.2 (11_0)
DirectX
11.2 (11_0)
4.4
OpenGL
4.4
1.2
OpenCL
1.2
N/A
Vulkan
N/A
-
-
-
5.0
Shader Model
5.0

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