GPU Comparison

AMD
RADEON

AMD Radeon HD 6850 X2

CORE STATE Barts
VRAM 2 GB
CLOCK SPEED
TDP 254 W
BUS WIDTH 256 bit
ARCHITECTURE TeraScale 2
nm
PROCESS 40 nm
LAUNCH DATE 2011
VS
NVIDIA
GEFORCE

GeForce GTX 780

CORE STATE GK110
VRAM 3 GB
CLOCK SPEED 902 MHz
TDP 250 W
BUS WIDTH 384 bit
ARCHITECTURE Kepler
nm
PROCESS 28 nm
LAUNCH DATE 2013

PERFORMANCE BENCHMARKS

geekbench_opencl
3,977
22,907
geekbench_metal
N/A
10,728
geekbench_vulkan
N/A
24,580

DETAILED SPECIFICATIONS

SPECIFICATION
HD 6850 X2
GTX 780
Core Specs
Shading Units
960
2,304 +140.0%
Shaders
960
2,304 +140.0%
TMUs
48
192 +300.0%
ROPs
32
48 +50.0%
Compute Units
12
Clocks
Base Clock
863 MHz
Boost Clock
902 MHz
GPU Clock
800 MHz
Memory Clock
1050 MHz 4.2 Gbps effective
1502 MHz 6 Gbps effective
Memory
Memory Size
2 GB
3 GB
VRAM (MB)
2,048
3,072 +50.0%
Memory Type
GDDR5
GDDR5
Memory Bus
256 bit
384 bit
Bandwidth
134.4 GB/s
288.4 GB/s
Cache
L1 Cache
8 KB (per CU)
16 KB (per SMX)
L2 Cache
512 KB
1536 KB
Performance
Pixel Rate
25.60 GPixel/s
43.30 GPixel/s
Texture Rate
38.40 GTexel/s
173.2 GTexel/s
FP32 (TFLOPS)
1.536 TFLOPS
4.156 TFLOPS
FP64 (TFLOPS)
173.2 GFLOPS (1:24)
Power
TDP
254 W
250 W
TDP (W)
254
250 -1.6%
Suggested PSU
600 W
600 W
Power Connectors
2x 8-pin
1x 6-pin + 1x 8-pin
Architecture
Architecture
TeraScale 2
Kepler
GPU Name
Barts
GK110
Generation
Northern Islands (HD 6800)
GeForce 700
Process Size
40 nm
28 nm
Transistors
1,700 million
7,080 million
Die Size
255 mm²
561 mm²
Foundry
TSMC
TSMC
Density
6.7M / mm²
12.6M / mm²
API Support
DirectX
11.2 (11_0)
12 (11_0)
OpenGL
4.4
4.6
Vulkan
1.2.175
OpenCL
1.2
3.0
CUDA
3.5
Shader Model
5.0
6.5 (5.1)
Physical
Slot Width
Dual-slot
Dual-slot
Length
267 mm 10.5 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
649 USD
Production
End-of-life
End-of-life
Predecessor
Evergreen
GeForce 600
Successor
Southern Islands
GeForce 900
View Radeon HD 6850 X2 Details View GeForce GTX 780 Details