Home GPU Comparison ATI Mobility Radeon HD 3850 X2 vs AMD Radeon HD 6830M

ATI Mobility Radeon HD 3850 X2 vs AMD Radeon HD 6830M

We compared two Mobile platform GPUs: 512MB VRAM Mobility Radeon HD 3850 X2 and 1024MB VRAM Radeon HD 6830M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Mobility Radeon HD 3850 X2 's Advantages
Larger VRAM bandwidth (48.00GB/s vs 25.60GB/s)
AMD Radeon HD 6830M 's Advantages
Released 2 years and 7 months late
More VRAM (1024GB vs 512GB)
480 additional rendering cores
Lower TDP (39W vs 70W)

Score

Benchmark

FP32 (float)
Mobility Radeon HD 3850 X2
0.371 TFLOPS
Radeon HD 6830M +147%
0.92 TFLOPS
VS

Graphics Card

Jun 2008
Release Date
Jan 2011
M8x
Generation
Vancouver
Mobile
Type
Mobile
PCIe 2.0 x16
Bus Interface
PCIe 2.0 x16

Clock Speeds

-
-
-
-
-
-
750 MHz
Memory Clock
800 MHz

Memory

512MB
Memory Size
1024MB
GDDR3
Memory Type
DDR3
256bit
Memory Bus
128bit
48.00GB/s
Bandwidth
25.60GB/s

Render Config

4
Compute Units
10
-
-
-
320
Shading Units
800
16
TMUs
40
16
ROPs
16
-
-
-
-
-
-
-
L1 Cache
8 KB (per CU)
256 KB
L2 Cache
256 KB
-
-
-

Theoretical Performance

9.280 GPixel/s
Pixel Rate
9.200 GPixel/s
9.280 GTexel/s
Texture Rate
23.00 GTexel/s
-
-
-
371.2 GFLOPS
FP32 (float)
920.0 GFLOPS
74.24 GFLOPS
FP64 (double)
-

Board Design

70W
TDP
39W
-
-
-
No outputs
Outputs
No outputs
-
-
-

Graphics Processor

M88
GPU Name
Granville
-
GPU Variant
Granville LP
TeraScale
Architecture
TeraScale 2
TSMC
Foundry
TSMC
55 nm
Process Size
40 nm
0.666 billion
Transistors
1.04 billion
192 mm²
Die Size
166 mm²

Graphics Features

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

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