Home GPU Comparison AMD Radeon R5 M255 vs AMD Radeon HD 7690M XT Rebrand

AMD Radeon R5 M255 vs AMD Radeon HD 7690M XT Rebrand

We compared two Mobile platform GPUs: 2GB VRAM Radeon R5 M255 and 1024MB VRAM Radeon HD 7690M XT Rebrand to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R5 M255 's Advantages
Released 2 years and 9 months late
Boost Clock940MHz
More VRAM (2GB vs 1024GB)
AMD Radeon HD 7690M XT Rebrand 's Advantages
Larger VRAM bandwidth (51.20GB/s vs 32.00GB/s)
96 additional rendering cores

Score

Benchmark

FP32 (float)
Radeon R5 M255 +3%
0.721 TFLOPS
Radeon HD 7690M XT Rebrand
0.696 TFLOPS
VS

Graphics Card

Oct 2014
Release Date
Jan 2012
Gem System
Generation
London
Mobile
Type
Mobile
PCIe 3.0 x8
Bus Interface
PCIe 2.0 x16

Clock Speeds

925 MHz
Base Clock
-
940 MHz
Boost Clock
-
1000 MHz
Memory Clock
800 MHz

Memory

2GB
Memory Size
1024MB
DDR3
Memory Type
GDDR5
128bit
Memory Bus
128bit
32.00GB/s
Bandwidth
51.20GB/s

Render Config

6
Compute Units
6
-
-
-
384
Shading Units
480
24
TMUs
24
8
ROPs
8
-
-
-
-
-
-
16 KB (per CU)
L1 Cache
8 KB (per CU)
256 KB
L2 Cache
256 KB
-
-
-

Theoretical Performance

7.520 GPixel/s
Pixel Rate
5.800 GPixel/s
22.56 GTexel/s
Texture Rate
17.40 GTexel/s
721.9 GFLOPS
FP16 (half)
-
721.9 GFLOPS
FP32 (float)
696.0 GFLOPS
45.12 GFLOPS
FP64 (double)
-

Board Design

Unknown
TDP
25W
-
-
-
Portable Device Dependent
Outputs
No outputs
-
-
-

Graphics Processor

Topaz
GPU Name
Whistler
Topaz PRO (216-0858030)
GPU Variant
Whistler XTX
GCN 3.0
Architecture
TeraScale 2
TSMC
Foundry
TSMC
28 nm
Process Size
40 nm
1.55 billion
Transistors
0.716 billion
125 mm²
Die Size
104 mm²

Graphics Features

12 (12_0)
DirectX
11.2 (11_0)
4.6
OpenGL
4.4
2.1
OpenCL
1.2
1.2.170
Vulkan
N/A
-
-
-
6.5
Shader Model
5.0

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