Home GPU Comparison AMD Radeon HD 8770M vs AMD Radeon R9 M290X

AMD Radeon HD 8770M vs AMD Radeon R9 M290X

AMD Radeon HD 8770M
VS
AMD Radeon R9 M290X
AMD Radeon HD 8770M
AMD Radeon R9 M290X
We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 8770M and 4GB VRAM Radeon R9 M290X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 M290X 's Advantages
Released 9 months late
Boost Clock has increased by 9% (900MHz vs 825MHz)
More VRAM (4GB vs 2GB)
Larger VRAM bandwidth (153.6GB/s vs 72.00GB/s)
896 additional rendering cores

Score

Benchmark

FP32 (float)
Radeon HD 8770M
0.633 TFLOPS
Radeon R9 M290X +263%
2.304 TFLOPS
Radeon HD 8770M
VS
Radeon R9 M290X

Graphics Card

Apr 2013
Release Date
Jan 2014
Solar System
Generation
Crystal System
Mobile
Type
Mobile
PCIe 3.0 x8
Bus Interface
PCIe 3.0 x16

Clock Speeds

775 MHz
Base Clock
850 MHz
825 MHz
Boost Clock
900 MHz
1125 MHz
Memory Clock
1200 MHz

Memory

2GB
Memory Size
4GB
GDDR5
Memory Type
GDDR5
128bit
Memory Bus
256bit
72.00GB/s
Bandwidth
153.6GB/s

Render Config

6
Compute Units
20
-
-
-
384
Shading Units
1280
24
TMUs
80
8
ROPs
32
-
-
-
-
-
-
16 KB (per CU)
L1 Cache
16 KB (per CU)
256 KB
L2 Cache
512 KB
-
-
-

Theoretical Performance

6.600 GPixel/s
Pixel Rate
28.80 GPixel/s
19.80 GTexel/s
Texture Rate
72.00 GTexel/s
-
-
-
633.6 GFLOPS
FP32 (float)
2.304 TFLOPS
39.60 GFLOPS
FP64 (double)
144.0 GFLOPS

Board Design

Unknown
TDP
100W
-
-
-
Portable Device Dependent
Outputs
No outputs
-
Power Connectors
None

Graphics Processor

Mars
GPU Name
Neptune
Mars S3 XT (216-0842018)
GPU Variant
Neptune XT (216-0847000)
GCN 1.0
Architecture
GCN 1.0
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
0.95 billion
Transistors
2.8 billion
77 mm²
Die Size
212 mm²

Graphics Features

12 (11_1)
DirectX
12 (11_1)
4.6
OpenGL
4.6
2.1 (1.2)
OpenCL
1.2
1.2.170
Vulkan
1.2
-
-
-
6.5 (5.1)
Shader Model
5.1

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