ATI FirePro V7900 SDI vs AMD Radeon HD 6850 X2

GPU · Specs Compare

Products
GPU ATI FirePro V7900 SDI · 2011-05
GPU AMD Radeon HD 6850 X2 AMD · 2011-09
Graphics Card
Release Date
May 2011
Sep 2011
Generation
FirePro
Northern Islands
Type
Desktop
Desktop
Bus Interface
PCIe 2.0 x16
PCIe 2.0 x16
Clock Speeds
Memory Clock
1250 MHz
1050 MHz
Memory
Memory Size
2GB
2GB
Memory Type
GDDR5
GDDR5
Memory Bus
256bit
256bit
Bandwidth
160.0GB/s
134.4GB/s
Render Config
Compute Units
20
12
Shading Units
1280
960
TMUs
80
48
ROPs
32
32
L1 Cache
8 KB (per CU)
8 KB (per CU)
L2 Cache
512 KB
512 KB
Theoretical Performance
Pixel Rate
23.20 GPixel/s
25.60 GPixel/s
Texture Rate
58.00 GTexel/s
38.40 GTexel/s
FP32 (float)
1.856 TFLOPS
1.536 TFLOPS
FP64 (double)
464.0 GFLOPS
—
Graphics Processor
GPU Name
Cayman
Barts
GPU Variant
Cayman PRO GL
Barts PRO(215-0798006)
Architecture
TeraScale 3
TeraScale 2
Foundry
TSMC
TSMC
Process Size
40 nm
40 nm
Transistors
2.64 billion
1.7 billion
Die Size
389 mm²
255 mm²
Board Design
TDP
150W
254W
Suggested PSU
450 W
600 W
Outputs
4x SDI
2x DVI1x HDMI 1.3a1x DisplayPort 1.1
Power Connectors
1x 6-pin
2x 8-pin
Graphics Features
DirectX
11.2 (11_0)
11.2 (11_0)
OpenGL
4.4
4.4
OpenCL
1.2
1.2
Vulkan
N/A
N/A
Shader Model
5.0
5.0
▲ Specs Compare Data sourced from official specifications and benchmark tests.