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
HD Graphics P4600
CORE STATE
Haswell GT2
VRAM
System Shared
CLOCK SPEED
1200 MHz
TDP
84 W
BUS WIDTH
System Shared
ARCHITECTURE
Generation 7.5
PROCESS
22 nm
LAUNCH DATE
2013
PERFORMANCE BENCHMARKS
geekbench_opencl
DETAILED SPECIFICATIONS
SPECIFICATION
HD 6850 X2
HD Graphics P4600
Core Specs
Shading Units
960
160
-83.3%
Shaders
960
160
-83.3%
TMUs
48
20
-58.3%
ROPs
32
2
-93.8%
Compute Units
12
—
Execution Units
—
20
Clocks
Base Clock
—
350 MHz
Boost Clock
—
1200 MHz
GPU Clock
800 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
2.400 GPixel/s
Texture Rate
38.40 GTexel/s
24.00 GTexel/s
FP32 (TFLOPS)
1.536 TFLOPS
384.0 GFLOPS
FP64 (TFLOPS)
—
96.00 GFLOPS (1:4)
Power
TDP
254 W
84 W
TDP (W)
254
84
-66.9%
Suggested PSU
600 W
—
Power Connectors
2x 8-pin
—
Architecture
Architecture
TeraScale 2
Generation 7.5
GPU Name
Barts
Haswell GT2
Generation
Northern Islands
(HD 6800)
HD Graphics-W
(Haswell)
Process Size
40 nm
22 nm
Transistors
1,700 million
—
Die Size
255 mm²
—
Foundry
TSMC
Intel
Density
6.7M / mm²
—
API Support
DirectX
11.2 (11_0)
12 (11_1)
OpenGL
4.4
4.3
Vulkan
—
1.0
OpenCL
1.2
1.2
Shader Model
5.0
5.1
Physical
Slot Width
Dual-slot
IGP
Outputs
2x DVI1x HDMI 1.3a1x DisplayPort 1.1
Motherboard Dependent
Bus Interface
PCIe 2.0 x16
Ring Bus
Other
Production
End-of-life
End-of-life
Predecessor
Evergreen
—
Successor
Southern Islands
—