Home GPU Comparison AMD Radeon Pro 455 vs AMD Radeon HD 6990M Rebrand

AMD Radeon Pro 455 vs AMD Radeon HD 6990M Rebrand

We compared two Mobile platform GPUs: 2GB VRAM Radeon Pro 455 and 1024MB VRAM Radeon HD 6990M Rebrand to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon Pro 455 's Advantages
Released 5 years and 3 months late
More VRAM (2GB vs 1024GB)
Larger VRAM bandwidth (81.28GB/s vs 70.40GB/s)
Lower TDP (35W vs 100W)
AMD Radeon HD 6990M Rebrand 's Advantages
32 additional rendering cores

Score

Benchmark

FP32 (float)
Radeon Pro 455 +2%
1.313 TFLOPS
Radeon HD 6990M Rebrand
1.28 TFLOPS
VS

Graphics Card

Oct 2016
Release Date
Jul 2011
Radeon Pro Mac
Generation
Vancouver
Mobile
Type
Mobile
PCIe 3.0 x8
Bus Interface
MXM-B (3.0)

Clock Speeds

-
-
-
-
-
-
1270 MHz
Memory Clock
1100 MHz

Memory

2GB
Memory Size
1024MB
GDDR5
Memory Type
GDDR5
128bit
Memory Bus
128bit
81.28GB/s
Bandwidth
70.40GB/s

Render Config

12
Compute Units
14
-
-
-
768
Shading Units
800
48
TMUs
40
16
ROPs
16
-
-
-
-
-
-
16 KB (per CU)
L1 Cache
8 KB (per CU)
1024 KB
L2 Cache
256 KB
-
-
-

Theoretical Performance

13.68 GPixel/s
Pixel Rate
12.80 GPixel/s
41.04 GTexel/s
Texture Rate
32.00 GTexel/s
1313 GFLOPS
FP16 (half)
-
1313 GFLOPS
FP32 (float)
1280 GFLOPS
82.08 GFLOPS
FP64 (double)
-

Board Design

35W
TDP
100W
-
-
-
No outputs
Outputs
No outputs
None
Power Connectors
-

Graphics Processor

Baffin
GPU Name
Broadway
Baffin PRO
GPU Variant
Broadway XTX
GCN 4.0
Architecture
TeraScale 2
GlobalFoundries
Foundry
TSMC
14 nm
Process Size
40 nm
3 billion
Transistors
1.04 billion
123 mm²
Die Size
166 mm²

Graphics Features

12 (12_0)
DirectX
11.2 (11_0)
4.6
OpenGL
4.4
2.1
OpenCL
1.2
1.2
Vulkan
N/A
-
-
-
6.4
Shader Model
5.0

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