GPU Comparison
RADEON
AMD FirePro W8000
CORE STATE
Tahiti
VRAM
4 GB
CLOCK SPEED
—
TDP
225 W
BUS WIDTH
256 bit
ARCHITECTURE
GCN 1.0
PROCESS
28 nm
LAUNCH DATE
2012
VS
RADEON
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
PERFORMANCE BENCHMARKS
geekbench_opencl
DETAILED SPECIFICATIONS
SPECIFICATION
FirePro W8000
HD 6850 X2
Core Specs
Shading Units
1,792
960
-46.4%
Shaders
1,792
960
-46.4%
TMUs
112
48
-57.1%
ROPs
32
32
0.0%
Compute Units
28
12
-57.1%
Clocks
GPU Clock
900 MHz
800 MHz
Memory Clock
1375 MHz
5.5 Gbps effective
1050 MHz
4.2 Gbps effective
Memory
Memory Size
4 GB
2 GB
VRAM (MB)
4,096
2,048
-50.0%
Memory Type
GDDR5
GDDR5
Memory Bus
256 bit
256 bit
Bandwidth
176.0 GB/s
134.4 GB/s
Cache
L1 Cache
16 KB (per CU)
8 KB (per CU)
L2 Cache
512 KB
512 KB
Performance
Pixel Rate
28.80 GPixel/s
25.60 GPixel/s
Texture Rate
100.8 GTexel/s
38.40 GTexel/s
FP32 (TFLOPS)
3.226 TFLOPS
1.536 TFLOPS
FP64 (TFLOPS)
806.4 GFLOPS (1:4)
—
Power
TDP
225 W
254 W
TDP (W)
225
254
+12.9%
Suggested PSU
550 W
600 W
Power Connectors
2x 6-pin
2x 8-pin
Architecture
Architecture
GCN 1.0
TeraScale 2
GPU Name
Tahiti
Barts
Generation
FirePro GCN
(Wx000)
Northern Islands
(HD 6800)
Process Size
28 nm
40 nm
Transistors
4,313 million
1,700 million
Die Size
352 mm²
255 mm²
Foundry
TSMC
TSMC
Density
12.3M / mm²
6.7M / mm²
API Support
DirectX
12 (11_1)
11.2 (11_0)
OpenGL
4.6
4.4
Vulkan
1.2.170
—
OpenCL
2.1 (1.2)
1.2
Shader Model
6.5 (5.1)
5.0
Physical
Slot Width
Dual-slot
Dual-slot
Length
279 mm
11 inches
—
Height
111 mm
4.4 inches
—
Outputs
4x DisplayPort 1.21x SDI
2x DVI1x HDMI 1.3a1x DisplayPort 1.1
Bus Interface
PCIe 3.0 x16
PCIe 2.0 x16
Other
Launch Price
1,599 USD
—
Production
End-of-life
End-of-life
Predecessor
FirePro Terascale
Evergreen
Successor
Radeon Pro Polaris
Southern Islands