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 M260X
CORE STATE
Opal
VRAM
1024 MB
CLOCK SPEED
715 MHz
TDP
—
BUS WIDTH
128 bit
ARCHITECTURE
GCN 1.0
PROCESS
28 nm
LAUNCH DATE
2015
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
HD 6850 X2
R7 M260X
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
Base Clock
—
620 MHz
Boost Clock
—
715 MHz
GPU Clock
800 MHz
—
Memory Clock
1050 MHz
4.2 Gbps effective
1000 MHz
4 Gbps effective
Memory
Memory Size
2 GB
1024 MB
VRAM (MB)
2,048
1,024
-50.0%
Memory Type
GDDR5
GDDR5
Memory Bus
256 bit
128 bit
Bandwidth
134.4 GB/s
64.00 GB/s
Cache
L1 Cache
8 KB (per CU)
16 KB (per CU)
L2 Cache
512 KB
256 KB
Performance
Pixel Rate
25.60 GPixel/s
5.720 GPixel/s
Texture Rate
38.40 GTexel/s
17.16 GTexel/s
FP32 (TFLOPS)
1.536 TFLOPS
549.1 GFLOPS
Power
TDP
254 W
—
TDP (W)
254
—
Suggested PSU
600 W
—
Power Connectors
2x 8-pin
None
Architecture
Architecture
TeraScale 2
GCN 1.0
GPU Name
Barts
Opal
Generation
Northern Islands
(HD 6800)
Gem System
(R7 M200)
Process Size
40 nm
28 nm
Transistors
1,700 million
950 million
Die Size
255 mm²
77 mm²
Foundry
TSMC
TSMC
Density
6.7M / mm²
12.3M / mm²
API Support
DirectX
11.2 (11_0)
12 (11_1)
OpenGL
4.4
4.6
Vulkan
—
1.2.170
OpenCL
1.2
2.1 (1.2)
Shader Model
5.0
6.5 (5.1)
Physical
Slot Width
Dual-slot
—
Outputs
2x DVI1x HDMI 1.3a1x DisplayPort 1.1
Portable Device Dependent
Bus Interface
PCIe 2.0 x16
PCIe 3.0 x8
Other
Production
End-of-life
End-of-life
Predecessor
Evergreen
Solar System
Successor
Southern Islands
Polaris Mobile