AMD Radeon RX Vega 64 Limited Edition vs AMD Radeon HD 6850 X2
GPU · Specs Compare
Graphics Card
Release Date
Aug 2017
Sep 2011
Generation
Vega
Northern Islands
Type
Desktop
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 2.0 x16
Clock Speeds
Base Clock
1247 MHz
—
Boost Clock
1546 MHz
—
Memory Clock
945 MHz
1050 MHz
Memory
Memory Size
8GB
2GB
Memory Type
HBM2
GDDR5
Memory Bus
2048bit
256bit
Bandwidth
483.8GB/s
134.4GB/s
Render Config
Compute Units
64
12
Shading Units
4096
960
TMUs
256
48
ROPs
64
32
L1 Cache
16 KB (per CU)
8 KB (per CU)
L2 Cache
4 MB
512 KB
Theoretical Performance
Pixel Rate
98.94 GPixel/s
25.60 GPixel/s
Texture Rate
395.8 GTexel/s
38.40 GTexel/s
FP16 (half)
25.33 TFLOPS
—
FP32 (float)
12.66 TFLOPS
1.536 TFLOPS
FP64 (double)
791.6 GFLOPS
—
Graphics Processor
GPU Name
Vega 10
Barts
GPU Variant
Vega 10 XT(215-0894200)
Barts PRO(215-0798006)
Architecture
GCN 5.0
TeraScale 2
Foundry
GlobalFoundries
TSMC
Process Size
14 nm
40 nm
Transistors
12.5 billion
1.7 billion
Die Size
495 mm²
255 mm²
Board Design
TDP
295W
254W
Suggested PSU
600 W
600 W
Outputs
1x HDMI 2.0b3x DisplayPort 1.4a
2x DVI1x HDMI 1.3a1x DisplayPort 1.1
Power Connectors
2x 8-pin
2x 8-pin
Graphics Features
DirectX
12 (12_1)
11.2 (11_0)
OpenGL
4.6
4.4
OpenCL
2.1
1.2
Vulkan
1.2
N/A
Shader Model
6.4
5.0
▲ Specs Compare
Data sourced from official specifications and benchmark tests.