GPU Comparison
RADEON
AMD Radeon HD 7970
CORE STATE
Tahiti
VRAM
3 GB
CLOCK SPEED
—
TDP
250 W
BUS WIDTH
384 bit
ARCHITECTURE
GCN 1.0
PROCESS
28 nm
LAUNCH DATE
2012
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 7970
GTX 980 Ti
Core Specs
Shading Units
2,048
2,816
+37.5%
Shaders
2,048
2,816
+37.5%
TMUs
128
176
+37.5%
ROPs
32
96
+200.0%
Compute Units
32
—
Clocks
Base Clock
—
1000 MHz
Boost Clock
—
1076 MHz
GPU Clock
925 MHz
—
Memory Clock
1375 MHz
5.5 Gbps effective
1753 MHz
7 Gbps effective
Memory
Memory Size
3 GB
6 GB
VRAM (MB)
3,072
6,144
+100.0%
Memory Type
GDDR5
GDDR5
Memory Bus
384 bit
384 bit
Bandwidth
264.0 GB/s
336.6 GB/s
Cache
L1 Cache
16 KB (per CU)
48 KB (per SMM)
L2 Cache
768 KB
3 MB
Performance
Pixel Rate
29.60 GPixel/s
103.3 GPixel/s
Texture Rate
118.4 GTexel/s
189.4 GTexel/s
FP32 (TFLOPS)
3.789 TFLOPS
6.060 TFLOPS
FP64 (TFLOPS)
947.2 GFLOPS (1:4)
189.4 GFLOPS (1:32)
Power
TDP
250 W
250 W
TDP (W)
250
250
0.0%
Suggested PSU
600 W
600 W
Power Connectors
1x 6-pin + 1x 8-pin
1x 6-pin + 1x 8-pin
Architecture
Architecture
GCN 1.0
Maxwell 2.0
GPU Name
Tahiti
GM200
Generation
Southern Islands
(HD 7900)
GeForce 900
Process Size
28 nm
28 nm
Transistors
4,313 million
8,000 million
Die Size
352 mm²
601 mm²
Foundry
TSMC
TSMC
Density
12.3M / mm²
13.3M / mm²
API Support
DirectX
12 (11_1)
12 (12_1)
OpenGL
4.6
4.6
Vulkan
1.2.170
1.4
OpenCL
2.1 (1.2)
3.0
CUDA
—
5.2
Shader Model
6.5 (5.1)
6.8
Physical
Slot Width
Dual-slot
Dual-slot
Length
275 mm
10.8 inches
267 mm
10.5 inches
Height
111 mm
4.4 inches
111 mm
4.4 inches
Outputs
1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
1x DVI1x HDMI 2.03x DisplayPort 1.2
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Other
Launch Price
549 USD
649 USD
Production
End-of-life
End-of-life
Predecessor
Northern Islands
GeForce 700
Successor
Sea Islands
GeForce 10