Home GPU Comparison AMD Radeon HD 6870M vs AMD Radeon HD 7650M Rebrand

AMD Radeon HD 6870M vs AMD Radeon HD 7650M Rebrand

We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 6870M and 1024MB VRAM Radeon HD 7650M Rebrand to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6870M 's Advantages
Larger VRAM bandwidth (64.00GB/s vs 25.60GB/s)
320 additional rendering cores
AMD Radeon HD 7650M Rebrand 's Advantages
Released 1 years and 2 months late
Lower TDP (20W vs 50W)

Score

Benchmark

FP32 (float)
Radeon HD 6870M +131%
1.08 TFLOPS
Radeon HD 7650M Rebrand
0.466 TFLOPS
VS

Graphics Card

Jan 2011
Release Date
Mar 2012
Vancouver
Generation
London
Mobile
Type
Mobile
MXM-B (3.0)
Bus Interface
PCIe 2.0 x16

Clock Speeds

-
-
-
-
-
-
1000 MHz
Memory Clock
800 MHz

Memory

1024MB
Memory Size
1024MB
GDDR5
Memory Type
DDR3
128bit
Memory Bus
128bit
64.00GB/s
Bandwidth
25.60GB/s

Render Config

10
Compute Units
6
-
-
-
800
Shading Units
480
40
TMUs
24
16
ROPs
8
-
-
-
-
-
-
8 KB (per CU)
L1 Cache
8 KB (per CU)
256 KB
L2 Cache
256 KB
-
-
-

Theoretical Performance

10.80 GPixel/s
Pixel Rate
3.880 GPixel/s
27.00 GTexel/s
Texture Rate
11.64 GTexel/s
-
-
-
1080 GFLOPS
FP32 (float)
465.6 GFLOPS
-
-
-

Board Design

50W
TDP
20W
-
-
-
No outputs
Outputs
No outputs
-
-
-

Graphics Processor

Granville
GPU Name
Whistler
Granville XT (216-0769024)
GPU Variant
Whistler PRO (216-0810005)
TeraScale 2
Architecture
TeraScale 2
TSMC
Foundry
TSMC
40 nm
Process Size
40 nm
1.04 billion
Transistors
0.716 billion
166 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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