GPU Comparison
RADEON
AMD Radeon HD 6850 X2
CORE STATE
Barts
VRAM
2 GB
CLOCK SPEED
—
TDP
254 W
BUS WIDTH
256 bit
ARCHITECTURE
TeraScale 2
PROCESS
40 nm
LAUNCH DATE
2011
VS
RADEON
Radeon RX Vega 64
CORE STATE
Vega 10
VRAM
8 GB
CLOCK SPEED
1546 MHz
TDP
295 W
BUS WIDTH
2048 bit
ARCHITECTURE
GCN 5.0
PROCESS
14 nm
LAUNCH DATE
2017
PERFORMANCE BENCHMARKS
geekbench_opencl
3dmark_3dmark_steel_nomad_dx12
geekbench_metal
DETAILED SPECIFICATIONS
SPECIFICATION
HD 6850 X2
RX Vega 64
Core Specs
Shading Units
960
4,096
+326.7%
Shaders
960
4,096
+326.7%
TMUs
48
256
+433.3%
ROPs
32
64
+100.0%
Compute Units
12
64
+433.3%
Clocks
Base Clock
—
1247 MHz
Boost Clock
—
1546 MHz
GPU Clock
800 MHz
—
Memory Clock
1050 MHz
4.2 Gbps effective
945 MHz
1890 Mbps effective
Memory
Memory Size
2 GB
8 GB
VRAM (MB)
2,048
8,192
+300.0%
Memory Type
GDDR5
HBM2
Memory Bus
256 bit
2048 bit
Bandwidth
134.4 GB/s
483.8 GB/s
Cache
L1 Cache
8 KB (per CU)
16 KB (per CU)
L2 Cache
512 KB
4 MB
Performance
Pixel Rate
25.60 GPixel/s
98.94 GPixel/s
Texture Rate
38.40 GTexel/s
395.8 GTexel/s
FP32 (TFLOPS)
1.536 TFLOPS
12.66 TFLOPS
FP64 (TFLOPS)
—
791.6 GFLOPS (1:16)
FP16 (TFLOPS)
—
25.33 TFLOPS (2:1)
Power
TDP
254 W
295 W
TDP (W)
254
295
+16.1%
Suggested PSU
600 W
600 W
Power Connectors
2x 8-pin
2x 8-pin
Architecture
Architecture
TeraScale 2
GCN 5.0
GPU Name
Barts
Vega 10
Generation
Northern Islands
(HD 6800)
Vega
(RX Vega)
Process Size
40 nm
14 nm
Transistors
1,700 million
12,500 million
Die Size
255 mm²
495 mm²
Foundry
TSMC
GlobalFoundries
Density
6.7M / mm²
25.3M / mm²
API Support
DirectX
11.2 (11_0)
12 (12_1)
OpenGL
4.4
4.6
Vulkan
—
1.3
OpenCL
1.2
2.1
Shader Model
5.0
6.7
Physical
Slot Width
Dual-slot
Dual-slot
Length
—
280 mm
11 inches
Height
—
111 mm
4.4 inches
Outputs
2x DVI1x HDMI 1.3a1x DisplayPort 1.1
1x HDMI 2.0b3x DisplayPort 1.4a
Bus Interface
PCIe 2.0 x16
PCIe 3.0 x16
Other
Launch Price
—
499 USD
Production
End-of-life
End-of-life
Predecessor
Evergreen
Polaris
Successor
Southern Islands
Navi