GPU Comparison
RADEON
AMD Radeon HD 6770
CORE STATE
Juniper
VRAM
1024 MB
CLOCK SPEED
—
TDP
108 W
BUS WIDTH
128 bit
ARCHITECTURE
TeraScale 2
PROCESS
40 nm
LAUNCH DATE
2011
VS
GEFORCE
GeForce GTX 850M
CORE STATE
GM107
VRAM
2 GB
CLOCK SPEED
—
TDP
45 W
BUS WIDTH
128 bit
ARCHITECTURE
Maxwell
PROCESS
28 nm
LAUNCH DATE
2014
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
HD 6770
GTX 850M
Core Specs
Shading Units
800
640
-20.0%
Shaders
800
640
-20.0%
TMUs
40
40
0.0%
ROPs
16
16
0.0%
Compute Units
10
—
Clocks
GPU Clock
850 MHz
902 MHz
Memory Clock
1200 MHz
4.8 Gbps effective
1001 MHz
2 Gbps effective
Memory
Memory Size
1024 MB
2 GB
VRAM (MB)
1,024
2,048
+100.0%
Memory Type
GDDR5
DDR3
Memory Bus
128 bit
128 bit
Bandwidth
76.80 GB/s
32.03 GB/s
Cache
L1 Cache
8 KB (per CU)
64 KB (per SMM)
L2 Cache
256 KB
2 MB
Performance
Pixel Rate
13.60 GPixel/s
14.43 GPixel/s
Texture Rate
34.00 GTexel/s
36.08 GTexel/s
FP32 (TFLOPS)
1,360.0 GFLOPS
1,154.6 GFLOPS
FP64 (TFLOPS)
—
36.08 GFLOPS (1:32)
Power
TDP
108 W
45 W
TDP (W)
108
45
-58.3%
Suggested PSU
300 W
—
Power Connectors
1x 6-pin
None
Architecture
Architecture
TeraScale 2
Maxwell
GPU Name
Juniper
GM107
Generation
Northern Islands
(HD 6700)
GeForce 800M
Process Size
40 nm
28 nm
Transistors
1,040 million
1,870 million
Die Size
166 mm²
148 mm²
Foundry
TSMC
TSMC
Density
6.3M / mm²
12.6M / mm²
API Support
DirectX
11.2 (11_0)
12 (11_0)
OpenGL
4.4
4.6
Vulkan
—
1.4
OpenCL
1.2
3.0
CUDA
—
5.0
Shader Model
5.0
6.7 (5.1)
Physical
Slot Width
Dual-slot
IGP
Length
198 mm
7.8 inches
—
Outputs
2x DVI1x HDMI 1.3a2x mini-DisplayPort 1.1
Portable Device Dependent
Bus Interface
PCIe 2.0 x16
PCIe 3.0 x16
Other
Launch Price
129 USD
—
Production
End-of-life
End-of-life
Predecessor
Evergreen
GeForce 700M
Successor
Southern Islands
GeForce 900M