GPU Comparison
RADEON
AMD Radeon HD 6950
CORE STATE
Cayman
VRAM
2 GB
CLOCK SPEED
—
TDP
200 W
BUS WIDTH
256 bit
ARCHITECTURE
TeraScale 3
PROCESS
40 nm
LAUNCH DATE
2010
VS
GEFORCE
GeForce GTX 980 Ti
CORE STATE
GM200
VRAM
6 GB
CLOCK SPEED
1076 MHz
TDP
250 W
BUS WIDTH
384 bit
ARCHITECTURE
Maxwell 2.0
PROCESS
28 nm
LAUNCH DATE
2015
PERFORMANCE BENCHMARKS
geekbench_opencl
3dmark_3dmark_steel_nomad_dx12
geekbench_metal
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
HD 6950
GTX 980 Ti
Core Specs
Shading Units
1,408
2,816
+100.0%
Shaders
1,408
2,816
+100.0%
TMUs
88
176
+100.0%
ROPs
32
96
+200.0%
Compute Units
22
—
Clocks
Base Clock
—
1000 MHz
Boost Clock
—
1076 MHz
GPU Clock
800 MHz
—
Memory Clock
1250 MHz
5 Gbps effective
1753 MHz
7 Gbps effective
Memory
Memory Size
2 GB
6 GB
VRAM (MB)
2,048
6,144
+200.0%
Memory Type
GDDR5
GDDR5
Memory Bus
256 bit
384 bit
Bandwidth
160.0 GB/s
336.6 GB/s
Cache
L1 Cache
8 KB (per CU)
48 KB (per SMM)
L2 Cache
512 KB
3 MB
Performance
Pixel Rate
25.60 GPixel/s
103.3 GPixel/s
Texture Rate
70.40 GTexel/s
189.4 GTexel/s
FP32 (TFLOPS)
2.253 TFLOPS
6.060 TFLOPS
FP64 (TFLOPS)
563.2 GFLOPS (1:4)
189.4 GFLOPS (1:32)
Power
TDP
200 W
250 W
TDP (W)
200
250
+25.0%
Suggested PSU
550 W
600 W
Power Connectors
2x 6-pin
1x 6-pin + 1x 8-pin
Architecture
Architecture
TeraScale 3
Maxwell 2.0
GPU Name
Cayman
GM200
Generation
Northern Islands
(HD 6900)
GeForce 900
Process Size
40 nm
28 nm
Transistors
2,640 million
8,000 million
Die Size
389 mm²
601 mm²
Foundry
TSMC
TSMC
Density
6.8M / mm²
13.3M / mm²
API Support
DirectX
11.2 (11_0)
12 (12_1)
OpenGL
4.4
4.6
Vulkan
—
1.4
OpenCL
1.2
3.0
CUDA
—
5.2
Shader Model
5.0
6.8
Physical
Slot Width
Dual-slot
Dual-slot
Length
286 mm
11.3 inches
267 mm
10.5 inches
Height
126 mm
5 inches
111 mm
4.4 inches
Outputs
2x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
1x DVI1x HDMI 2.03x DisplayPort 1.2
Bus Interface
PCIe 2.0 x16
PCIe 3.0 x16
Other
Launch Price
299 USD
649 USD
Production
End-of-life
End-of-life
Predecessor
Evergreen
GeForce 700
Successor
Southern Islands
GeForce 10