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
Tesla P4
CORE STATE
GP104
VRAM
8 GB
CLOCK SPEED
1114 MHz
TDP
75 W
BUS WIDTH
256 bit
ARCHITECTURE
Pascal
PROCESS
16 nm
LAUNCH DATE
2016
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
HD 7970
Tesla P4
Core Specs
Shading Units
2,048
2,560
+25.0%
Shaders
2,048
2,560
+25.0%
TMUs
128
160
+25.0%
ROPs
32
64
+100.0%
Compute Units
32
—
SM Count
—
20
Clocks
Base Clock
—
886 MHz
Boost Clock
—
1114 MHz
GPU Clock
925 MHz
—
Memory Clock
1375 MHz
5.5 Gbps effective
1502 MHz
6 Gbps effective
Memory
Memory Size
3 GB
8 GB
VRAM (MB)
3,072
8,192
+166.7%
Memory Type
GDDR5
GDDR5
Memory Bus
384 bit
256 bit
Bandwidth
264.0 GB/s
192.3 GB/s
Cache
L1 Cache
16 KB (per CU)
48 KB (per SM)
L2 Cache
768 KB
2 MB
Performance
Pixel Rate
29.60 GPixel/s
71.30 GPixel/s
Texture Rate
118.4 GTexel/s
178.2 GTexel/s
FP32 (TFLOPS)
3.789 TFLOPS
5.704 TFLOPS
FP64 (TFLOPS)
947.2 GFLOPS (1:4)
178.2 GFLOPS (1:32)
FP16 (TFLOPS)
—
89.12 GFLOPS (1:64)
Power
TDP
250 W
75 W
TDP (W)
250
75
-70.0%
Suggested PSU
600 W
250 W
Power Connectors
1x 6-pin + 1x 8-pin
None
Architecture
Architecture
GCN 1.0
Pascal
GPU Name
Tahiti
GP104
Generation
Southern Islands
(HD 7900)
Tesla Pascal
(Pxx)
Process Size
28 nm
16 nm
Transistors
4,313 million
7,200 million
Die Size
352 mm²
314 mm²
Foundry
TSMC
TSMC
Density
12.3M / mm²
22.9M / 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
—
6.1
Shader Model
6.5 (5.1)
6.8
Physical
Slot Width
Dual-slot
Single-slot
Length
275 mm
10.8 inches
168 mm
6.6 inches
Height
111 mm
4.4 inches
—
Outputs
1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
No outputs
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Other
Launch Price
549 USD
—
Production
End-of-life
End-of-life
Predecessor
Northern Islands
Tesla Maxwell
Successor
Sea Islands
Tesla Volta