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 960A
CORE STATE
GM107
VRAM
2 GB
CLOCK SPEED
1176 MHz
TDP
75 W
BUS WIDTH
128 bit
ARCHITECTURE
Maxwell
PROCESS
28 nm
LAUNCH DATE
2015
PERFORMANCE BENCHMARKS
geekbench_opencl
DETAILED SPECIFICATIONS
SPECIFICATION
HD 7970
GTX 960A
Core Specs
Shading Units
2,048
640
-68.8%
Shaders
2,048
640
-68.8%
TMUs
128
40
-68.8%
ROPs
32
16
-50.0%
Compute Units
32
—
Clocks
Base Clock
—
1097 MHz
Boost Clock
—
1176 MHz
GPU Clock
925 MHz
—
Memory Clock
1375 MHz
5.5 Gbps effective
1253 MHz
5 Gbps effective
Memory
Memory Size
3 GB
2 GB
VRAM (MB)
3,072
2,048
-33.3%
Memory Type
GDDR5
GDDR5
Memory Bus
384 bit
128 bit
Bandwidth
264.0 GB/s
80.19 GB/s
Cache
L1 Cache
16 KB (per CU)
64 KB (per SMM)
L2 Cache
768 KB
2 MB
Performance
Pixel Rate
29.60 GPixel/s
18.82 GPixel/s
Texture Rate
118.4 GTexel/s
47.04 GTexel/s
FP32 (TFLOPS)
3.789 TFLOPS
1.505 TFLOPS
FP64 (TFLOPS)
947.2 GFLOPS (1:4)
47.04 GFLOPS (1:32)
Power
TDP
250 W
75 W
TDP (W)
250
75
-70.0%
Suggested PSU
600 W
—
Power Connectors
1x 6-pin + 1x 8-pin
None
Architecture
Architecture
GCN 1.0
Maxwell
GPU Name
Tahiti
GM107
Generation
Southern Islands
(HD 7900)
GeForce 900A
Process Size
28 nm
28 nm
Transistors
4,313 million
1,870 million
Die Size
352 mm²
148 mm²
Foundry
TSMC
TSMC
Density
12.3M / mm²
12.6M / mm²
API Support
DirectX
12 (11_1)
12 (11_0)
OpenGL
4.6
4.6
Vulkan
1.2.170
1.4
OpenCL
2.1 (1.2)
3.0
CUDA
—
5.0
Shader Model
6.5 (5.1)
6.7 (5.1)
Physical
Slot Width
Dual-slot
MXM Module
Length
275 mm
10.8 inches
—
Height
111 mm
4.4 inches
—
Outputs
1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
Portable Device Dependent
Bus Interface
PCIe 3.0 x16
MXM-B (3.0)
Other
Launch Price
549 USD
—
Production
End-of-life
End-of-life
Predecessor
Northern Islands
GeForce 800A
Successor
Sea Islands
—