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
GPU
Arc A770M
CORE STATE
DG2-512
VRAM
16 GB
CLOCK SPEED
2050 MHz
TDP
120 W
BUS WIDTH
256 bit
ARCHITECTURE
Xe-HPG
PROCESS
6 nm
LAUNCH DATE
—
PERFORMANCE BENCHMARKS
geekbench_opencl
3dmark_3dmark_steel_nomad_dx12
geekbench_vulkan
passmark_directx_10
passmark_directx_11
passmark_directx_12
passmark_directx_9
passmark_g2d
passmark_g3d
passmark_gpu_compute
DETAILED SPECIFICATIONS
SPECIFICATION
HD 6850 X2
A770M
Core Specs
Shading Units
960
4,096
+326.7%
Shaders
960
4,096
+326.7%
TMUs
48
256
+433.3%
ROPs
32
128
+300.0%
Compute Units
12
—
Execution Units
—
512
Clocks
Base Clock
—
1650 MHz
Boost Clock
—
2050 MHz
GPU Clock
800 MHz
—
Memory Clock
1050 MHz
4.2 Gbps effective
2000 MHz
16 Gbps effective
Memory
Memory Size
2 GB
16 GB
VRAM (MB)
2,048
16,384
+700.0%
Memory Type
GDDR5
GDDR6
Memory Bus
256 bit
256 bit
Bandwidth
134.4 GB/s
512.0 GB/s
Cache
L1 Cache
8 KB (per CU)
—
L2 Cache
512 KB
16 MB
Performance
Pixel Rate
25.60 GPixel/s
262.4 GPixel/s
Texture Rate
38.40 GTexel/s
524.8 GTexel/s
FP32 (TFLOPS)
1.536 TFLOPS
16.79 TFLOPS
FP16 (TFLOPS)
—
33.59 TFLOPS (2:1)
AI/RT
RT Cores
—
32
XMX Cores
—
512
Power
TDP
254 W
120 W
TDP (W)
254
120
-52.8%
Suggested PSU
600 W
—
Power Connectors
2x 8-pin
—
Architecture
Architecture
TeraScale 2
Xe-HPG
GPU Name
Barts
DG2-512
Generation
Northern Islands
(HD 6800)
Alchemist
(Arc 7 Mobile)
Process Size
40 nm
6 nm
Transistors
1,700 million
21,700 million
Die Size
255 mm²
406 mm²
Foundry
TSMC
TSMC
Density
6.7M / mm²
53.4M / mm²
API Support
DirectX
11.2 (11_0)
12 Ultimate (12_2)
OpenGL
4.4
4.6
Vulkan
—
1.4
OpenCL
1.2
3.0
Shader Model
5.0
6.6
Physical
Slot Width
Dual-slot
IGP
Outputs
2x DVI1x HDMI 1.3a1x DisplayPort 1.1
Portable Device Dependent
Bus Interface
PCIe 2.0 x16
PCIe 4.0 x16
Other
Production
End-of-life
End-of-life
Predecessor
Evergreen
—
Successor
Southern Islands
—