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 R9 370X
CORE STATE
Trinidad
VRAM
2 GB
CLOCK SPEED
1030 MHz
TDP
180 W
BUS WIDTH
256 bit
ARCHITECTURE
GCN 1.0
PROCESS
28 nm
LAUNCH DATE
2015
PERFORMANCE BENCHMARKS
geekbench_opencl
DETAILED SPECIFICATIONS
SPECIFICATION
HD 6850 X2
R9 370X
Core Specs
Shading Units
960
1,280
+33.3%
Shaders
960
1,280
+33.3%
TMUs
48
80
+66.7%
ROPs
32
32
0.0%
Compute Units
12
24
+100.0%
Clocks
Base Clock
—
980 MHz
Boost Clock
—
1030 MHz
GPU Clock
800 MHz
—
Memory Clock
1050 MHz
4.2 Gbps effective
1400 MHz
5.6 Gbps effective
Memory
Memory Size
2 GB
2 GB
VRAM (MB)
2,048
2,048
0.0%
Memory Type
GDDR5
GDDR5
Memory Bus
256 bit
256 bit
Bandwidth
134.4 GB/s
179.2 GB/s
Cache
L1 Cache
8 KB (per CU)
16 KB (per CU)
L2 Cache
512 KB
512 KB
Performance
Pixel Rate
25.60 GPixel/s
32.96 GPixel/s
Texture Rate
38.40 GTexel/s
82.40 GTexel/s
FP32 (TFLOPS)
1.536 TFLOPS
2.637 TFLOPS
FP64 (TFLOPS)
—
164.8 GFLOPS (1:16)
Power
TDP
254 W
180 W
TDP (W)
254
180
-29.1%
Suggested PSU
600 W
450 W
Power Connectors
2x 8-pin
2x 6-pin
Architecture
Architecture
TeraScale 2
GCN 1.0
GPU Name
Barts
Trinidad
Generation
Northern Islands
(HD 6800)
Pirate Islands
(R9 300)
Process Size
40 nm
28 nm
Transistors
1,700 million
2,800 million
Die Size
255 mm²
212 mm²
Foundry
TSMC
TSMC
Density
6.7M / mm²
13.2M / 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
Dual-slot
Length
—
221 mm
8.7 inches
Height
—
111 mm
4.4 inches
Outputs
2x DVI1x HDMI 1.3a1x DisplayPort 1.1
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
Bus Interface
PCIe 2.0 x16
PCIe 3.0 x16
Other
Launch Price
—
199 USD
Production
End-of-life
End-of-life
Predecessor
Evergreen
Volcanic Islands
Successor
Southern Islands
Arctic Islands