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 Pro 460
CORE STATE
Baffin
VRAM
4 GB
CLOCK SPEED
907 MHz
TDP
35 W
BUS WIDTH
128 bit
ARCHITECTURE
GCN 4.0
PROCESS
14 nm
LAUNCH DATE
2016
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_metal
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
HD 7970
Pro 460
Core Specs
Shading Units
2,048
1,024
-50.0%
Shaders
2,048
1,024
-50.0%
TMUs
128
64
-50.0%
ROPs
32
16
-50.0%
Compute Units
32
16
-50.0%
Clocks
Base Clock
—
850 MHz
Boost Clock
—
907 MHz
GPU Clock
925 MHz
—
Memory Clock
1375 MHz
5.5 Gbps effective
1270 MHz
5.1 Gbps effective
Memory
Memory Size
3 GB
4 GB
VRAM (MB)
3,072
4,096
+33.3%
Memory Type
GDDR5
GDDR5
Memory Bus
384 bit
128 bit
Bandwidth
264.0 GB/s
81.28 GB/s
Cache
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
768 KB
1024 KB
Performance
Pixel Rate
29.60 GPixel/s
14.51 GPixel/s
Texture Rate
118.4 GTexel/s
58.05 GTexel/s
FP32 (TFLOPS)
3.789 TFLOPS
1.858 TFLOPS
FP64 (TFLOPS)
947.2 GFLOPS (1:4)
116.1 GFLOPS (1:16)
FP16 (TFLOPS)
—
1.858 TFLOPS (1:1)
Power
TDP
250 W
35 W
TDP (W)
250
35
-86.0%
Suggested PSU
600 W
—
Power Connectors
1x 6-pin + 1x 8-pin
None
Architecture
Architecture
GCN 1.0
GCN 4.0
GPU Name
Tahiti
Baffin
Generation
Southern Islands
(HD 7900)
Radeon Pro Mac
(400 Series)
Process Size
28 nm
14 nm
Transistors
4,313 million
3,000 million
Die Size
352 mm²
123 mm²
Foundry
TSMC
GlobalFoundries
Density
12.3M / mm²
24.4M / mm²
API Support
DirectX
12 (11_1)
12 (12_0)
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
IGP
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
PCIe 3.0 x8
Other
Launch Price
549 USD
—
Production
End-of-life
End-of-life
Predecessor
Northern Islands
—
Successor
Sea Islands
—