AMD Radeon HD 7870 XT vs AMD Radeon RX Vega 56 Mobile
GPU Specs Compare
Graphics Card
Release Date
Nov 2012
Jun 2018
Generation
Southern Islands
Mobility Radeon
Type
Desktop
Mobile
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
925 MHz
1138 MHz
Boost Clock
975 MHz
1301 MHz
Memory Clock
1500 MHz
800 MHz
Memory
Memory Size
2GB
8GB
Memory Type
GDDR5
HBM2
Memory Bus
256bit
2048bit
Bandwidth
192.0GB/s
409.6GB/s
Render Config
Compute Units
24
56
Shading Units
1536
3584
TMUs
96
224
ROPs
32
64
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
512 KB
4 MB
Theoretical Performance
Pixel Rate
31.20 GPixel/s
83.26 GPixel/s
Texture Rate
93.60 GTexel/s
291.4 GTexel/s
FP32 (float)
2.995 TFLOPS
9.326 TFLOPS
FP64 (double)
748.8 GFLOPS
582.8 GFLOPS
FP16 (half)
-
18.65 TFLOPS
Graphics Processor
GPU Name
Tahiti
Vega 10
GPU Variant
Tahiti LE(215-0821122)
Vega 10 XL(215-0894216)
Architecture
GCN 1.0
GCN 5.0
Foundry
TSMC
GlobalFoundries
Process Size
28 nm
14 nm
Transistors
4.313 billion
12.5 billion
Die Size
352 mm²
495 mm²
Board Design
TDP
185W
120W
Suggested PSU
450 W
-
Outputs
1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
1x HDMI 2.0b3x DisplayPort 1.4a
Power Connectors
2x 6-pin
None
Graphics Features
DirectX
12 (11_1)
12 (12_1)
OpenGL
4.6
4.6
OpenCL
1.2
2.1
Vulkan
1.2
1.2
Shader Model
5.1
6.4