AMD Radeon HD 8870 OEM vs AMD Steam Deck GPU
GPU · Specs Compare
Graphics Card
Release Date
Jan 2013
Feb 2022
Generation
Sea Islands
Console GPU
Type
Desktop
Game console
Bus Interface
PCIe 3.0 x16
—
Clock Speeds
Memory Clock
1200 MHz
1375 MHz
Base Clock
—
1000 MHz
Boost Clock
—
1600 MHz
Memory
Memory Size
2GB
16GB
Memory Type
GDDR5
LPDDR5
Memory Bus
256bit
128bit
Bandwidth
153.6GB/s
88.00GB/s
Render Config
Compute Units
20
8
Shading Units
1280
512
TMUs
80
32
ROPs
32
16
L1 Cache
16 KB (per CU)
128 KB per Array
L2 Cache
512 KB
1024 KB
RT Cores
—
8
L3 Cache
—
8 MB
Theoretical Performance
Pixel Rate
32.00 GPixel/s
25.60 GPixel/s
Texture Rate
80.00 GTexel/s
51.20 GTexel/s
FP32 (float)
2.560 TFLOPS
1.638 TFLOPS
FP64 (double)
160.0 GFLOPS
102.4 GFLOPS
FP16 (half)
—
3.277 TFLOPS
Graphics Processor
GPU Name
Pitcairn
Van Gogh
GPU Variant
Pitcairn XT(215-0828047)
100-000000405
Architecture
GCN 1.0
RDNA 2.0
Foundry
TSMC
TSMC
Process Size
28 nm
7 nm
Transistors
2.8 billion
2.4 billion
Die Size
212 mm²
163 mm²
Board Design
TDP
175W
15W
Suggested PSU
450 W
—
Outputs
1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
1x USB Type-C
Power Connectors
2x 6-pin
None
Graphics Features
DirectX
12 (11_1)
12 Ultimate (12_2)
OpenGL
4.6
4.6
OpenCL
1.2
2.0
Vulkan
1.2
1.3
Shader Model
5.1
6.8
▲ Specs Compare
Data sourced from official specifications and benchmark tests.