Home GPU Comparison AMD Radeon HD 8870M vs AMD Radeon RX 460 Mobile

AMD Radeon HD 8870M vs AMD Radeon RX 460 Mobile

We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 8870M and 4GB VRAM Radeon RX 460 Mobile to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 460 Mobile 's Advantages
Released 3 years and 4 months late
Boost Clock has increased by 52% (1180MHz vs 775MHz)
More VRAM (4GB vs 2GB)
Larger VRAM bandwidth (80.00GB/s vs 72.00GB/s)
256 additional rendering cores

Score

Benchmark

FP32 (float)
Radeon HD 8870M
0.992 TFLOPS
Radeon RX 460 Mobile +113%
2.115 TFLOPS
VS

Graphics Card

Apr 2013
Release Date
Aug 2016
Solar System
Generation
Mobility Radeon
Mobile
Type
Mobile
PCIe 3.0 x16
Bus Interface
MXM-B (3.0)

Clock Speeds

725 MHz
Base Clock
1000 MHz
775 MHz
Boost Clock
1180 MHz
1125 MHz
Memory Clock
1250 MHz

Memory

2GB
Memory Size
4GB
GDDR5
Memory Type
GDDR5
128bit
Memory Bus
128bit
72.00GB/s
Bandwidth
80.00GB/s

Render Config

10
Compute Units
14
-
-
-
640
Shading Units
896
40
TMUs
56
16
ROPs
16
-
-
-
-
-
-
16 KB (per CU)
L1 Cache
16 KB (per CU)
256 KB
L2 Cache
1024 KB
-
-
-

Theoretical Performance

12.40 GPixel/s
Pixel Rate
18.88 GPixel/s
31.00 GTexel/s
Texture Rate
66.08 GTexel/s
-
FP16 (half)
2.115 TFLOPS
992.0 GFLOPS
FP32 (float)
2.115 TFLOPS
62.00 GFLOPS
FP64 (double)
132.2 GFLOPS

Board Design

Unknown
TDP
55W
-
-
-
Portable Device Dependent
Outputs
No outputs
-
Power Connectors
None

Graphics Processor

Venus
GPU Name
Baffin
Venus XT (216-0846000)
GPU Variant
Baffin XT
GCN 1.0
Architecture
GCN 4.0
TSMC
Foundry
GlobalFoundries
28 nm
Process Size
14 nm
1.5 billion
Transistors
3 billion
123 mm²
Die Size
123 mm²

Graphics Features

12 (11_1)
DirectX
12 (12_0)
4.6
OpenGL
4.6
2.1 (1.2)
OpenCL
2.1
1.2.170
Vulkan
1.2
-
-
-
6.5 (5.1)
Shader Model
6.4

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