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
Tesla K40c
CORE STATE
GK180
VRAM
12 GB
CLOCK SPEED
876 MHz
TDP
245 W
BUS WIDTH
384 bit
ARCHITECTURE
Kepler
PROCESS
28 nm
LAUNCH DATE
2013
PERFORMANCE BENCHMARKS
geekbench_opencl
DETAILED SPECIFICATIONS
SPECIFICATION
HD 6770
Tesla K40c
Core Specs
Shading Units
800
2,880
+260.0%
Shaders
800
2,880
+260.0%
TMUs
40
240
+500.0%
ROPs
16
48
+200.0%
Compute Units
10
—
Clocks
Base Clock
—
745 MHz
Boost Clock
—
876 MHz
GPU Clock
850 MHz
—
Memory Clock
1200 MHz
4.8 Gbps effective
1502 MHz
6 Gbps effective
Memory
Memory Size
1024 MB
12 GB
VRAM (MB)
1,024
12,288
+1100.0%
Memory Type
GDDR5
GDDR5
Memory Bus
128 bit
384 bit
Bandwidth
76.80 GB/s
288.4 GB/s
Cache
L1 Cache
8 KB (per CU)
16 KB (per SMX)
L2 Cache
256 KB
1536 KB
Performance
Pixel Rate
13.60 GPixel/s
52.56 GPixel/s
Texture Rate
34.00 GTexel/s
210.2 GTexel/s
FP32 (TFLOPS)
1,360.0 GFLOPS
5.046 TFLOPS
FP64 (TFLOPS)
—
1.682 TFLOPS (1:3)
Power
TDP
108 W
245 W
TDP (W)
108
245
+126.9%
Suggested PSU
300 W
550 W
Power Connectors
1x 6-pin
1x 6-pin + 1x 8-pin
Architecture
Architecture
TeraScale 2
Kepler
GPU Name
Juniper
GK180
Generation
Northern Islands
(HD 6700)
Tesla Kepler
(Kxx)
Process Size
40 nm
28 nm
Transistors
1,040 million
7,080 million
Die Size
166 mm²
561 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
—
1.2.175
OpenCL
1.2
3.0
CUDA
—
3.5
Shader Model
5.0
5.1
Physical
Slot Width
Dual-slot
Dual-slot
Length
198 mm
7.8 inches
267 mm
10.5 inches
Outputs
2x DVI1x HDMI 1.3a2x mini-DisplayPort 1.1
No outputs
Bus Interface
PCIe 2.0 x16
PCIe 3.0 x16
Other
Launch Price
129 USD
7,699 USD
Production
End-of-life
End-of-life
Predecessor
Evergreen
Tesla Fermi
Successor
Southern Islands
Tesla Maxwell