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
RADEON
Radeon Instinct MI25
CORE STATE
Vega 10
VRAM
16 GB
CLOCK SPEED
1500 MHz
TDP
300 W
BUS WIDTH
2048 bit
ARCHITECTURE
GCN 5.0
PROCESS
14 nm
LAUNCH DATE
2017
PERFORMANCE BENCHMARKS
geekbench_opencl
DETAILED SPECIFICATIONS
SPECIFICATION
HD 7970
Instinct MI25
Core Specs
Shading Units
2,048
4,096
+100.0%
Shaders
2,048
4,096
+100.0%
TMUs
128
256
+100.0%
ROPs
32
64
+100.0%
Compute Units
32
64
+100.0%
Clocks
Base Clock
—
1400 MHz
Boost Clock
—
1500 MHz
GPU Clock
925 MHz
—
Memory Clock
1375 MHz
5.5 Gbps effective
852 MHz
1704 Mbps effective
Memory
Memory Size
3 GB
16 GB
VRAM (MB)
3,072
16,384
+433.3%
Memory Type
GDDR5
HBM2
Memory Bus
384 bit
2048 bit
Bandwidth
264.0 GB/s
436.2 GB/s
Cache
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
768 KB
4 MB
Performance
Pixel Rate
29.60 GPixel/s
96.00 GPixel/s
Texture Rate
118.4 GTexel/s
384.0 GTexel/s
FP32 (TFLOPS)
3.789 TFLOPS
12.29 TFLOPS
FP64 (TFLOPS)
947.2 GFLOPS (1:4)
768.0 GFLOPS (1:16)
FP16 (TFLOPS)
—
24.58 TFLOPS (2:1)
Power
TDP
250 W
300 W
TDP (W)
250
300
+20.0%
Suggested PSU
600 W
700 W
Power Connectors
1x 6-pin + 1x 8-pin
2x 8-pin
Architecture
Architecture
GCN 1.0
GCN 5.0
GPU Name
Tahiti
Vega 10
Generation
Southern Islands
(HD 7900)
Radeon Instinct
(MIx)
Process Size
28 nm
14 nm
Transistors
4,313 million
12,500 million
Die Size
352 mm²
495 mm²
Foundry
TSMC
GlobalFoundries
Density
12.3M / mm²
25.3M / mm²
API Support
DirectX
12 (11_1)
12 (12_1)
OpenGL
4.6
4.6
Vulkan
1.2.170
1.3
OpenCL
2.1 (1.2)
2.1
Shader Model
6.5 (5.1)
6.7
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
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
FirePro Data Center
Successor
Sea Islands
—