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 R7 Graphics
CORE STATE
Spectre Lite
VRAM
System Shared
CLOCK SPEED
—
TDP
25 W
BUS WIDTH
System Shared
ARCHITECTURE
GCN 2.0
PROCESS
28 nm
LAUNCH DATE
2014
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
HD 6850 X2
R7 Graphics
Core Specs
Shading Units
960
384
-60.0%
Shaders
960
384
-60.0%
TMUs
48
24
-50.0%
ROPs
32
8
-75.0%
Compute Units
12
6
-50.0%
Clocks
GPU Clock
800 MHz
720 MHz
Memory Clock
1050 MHz
4.2 Gbps effective
System Shared
Memory
Memory Size
2 GB
System Shared
VRAM (MB)
2,048
—
Memory Type
GDDR5
System Shared
Memory Bus
256 bit
System Shared
Bandwidth
134.4 GB/s
System Dependent
Cache
L1 Cache
8 KB (per CU)
—
L2 Cache
512 KB
—
Performance
Pixel Rate
25.60 GPixel/s
5.760 GPixel/s
Texture Rate
38.40 GTexel/s
17.28 GTexel/s
FP32 (TFLOPS)
1.536 TFLOPS
553.0 GFLOPS
FP64 (TFLOPS)
—
34.56 GFLOPS (1:16)
Power
TDP
254 W
25 W
TDP (W)
254
25
-90.2%
Suggested PSU
600 W
—
Power Connectors
2x 8-pin
—
Architecture
Architecture
TeraScale 2
GCN 2.0
GPU Name
Barts
Spectre Lite
Generation
Northern Islands
(HD 6800)
GCN 2.0 IGP
(Kaveri)
Process Size
40 nm
28 nm
Transistors
1,700 million
2,410 million
Die Size
255 mm²
245 mm²
Foundry
TSMC
GlobalFoundries
Density
6.7M / mm²
9.8M / mm²
API Support
DirectX
11.2 (11_0)
12 (12_0)
OpenGL
4.4
4.6
Vulkan
—
1.2.170
OpenCL
1.2
2.1
Shader Model
5.0
6.5
Physical
Slot Width
Dual-slot
IGP
Outputs
2x DVI1x HDMI 1.3a1x DisplayPort 1.1
Motherboard Dependent
Bus Interface
PCIe 2.0 x16
IGP
Other
Production
End-of-life
End-of-life
Predecessor
Evergreen
TeraScale 3 IGP
Successor
Southern Islands
GCN 3.0 IGP