Home GPU Comparison ATI Mobility Radeon HD 4670 vs AMD Radeon HD 6630M Mac Edition

ATI Mobility Radeon HD 4670 vs AMD Radeon HD 6630M Mac Edition

We compared two Mobile platform GPUs: 512MB VRAM Mobility Radeon HD 4670 and 256MB VRAM Radeon HD 6630M Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Mobility Radeon HD 4670 's Advantages
More VRAM (512GB vs 256GB)
Larger VRAM bandwidth (25.60GB/s vs 19.20GB/s)
AMD Radeon HD 6630M Mac Edition 's Advantages
Released 2 years late
160 additional rendering cores
Lower TDP (26W vs 35W)

Score

Benchmark

FP32 (float)
Mobility Radeon HD 4670
0.432 TFLOPS
Radeon HD 6630M Mac Edition +11%
0.48 TFLOPS
VS

Graphics Card

Jan 2009
Release Date
Jan 2011
M9x
Generation
Vancouver
Mobile
Type
Mobile
MXM-A (3.0)
Bus Interface
PCIe 2.0 x16

Clock Speeds

-
-
-
-
-
-
800 MHz
Memory Clock
600 MHz

Memory

512MB
Memory Size
256MB
GDDR3
Memory Type
GDDR5
128bit
Memory Bus
64bit
25.60GB/s
Bandwidth
19.20GB/s

Render Config

4
Compute Units
6
-
-
-
320
Shading Units
480
32
TMUs
24
8
ROPs
8
-
-
-
-
-
-
16 KB (per CU)
L1 Cache
-
128 KB
L2 Cache
-
-
-
-

Theoretical Performance

5.400 GPixel/s
Pixel Rate
4.000 GPixel/s
21.60 GTexel/s
Texture Rate
12.00 GTexel/s
-
-
-
432.0 GFLOPS
FP32 (float)
480.0 GFLOPS
-
-
-

Board Design

35W
TDP
26W
-
-
-
No outputs
Outputs
No outputs
-
-
-

Graphics Processor

M96
GPU Name
Whistler
M96 XT (216-0729051)
GPU Variant
Whistler LP
TeraScale
Architecture
TeraScale 2
TSMC
Foundry
TSMC
55 nm
Process Size
40 nm
0.514 billion
Transistors
0.716 billion
146 mm²
Die Size
104 mm²

Graphics Features

10.1 (10_1)
DirectX
11.2 (11_0)
3.3
OpenGL
4.4
1.1
OpenCL
1.2
N/A
Vulkan
N/A
-
-
-
4.1
Shader Model
5.0

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