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 W6600X
CORE STATE
Navi 23
VRAM
8 GB
CLOCK SPEED
2479 MHz
TDP
120 W
BUS WIDTH
128 bit
ARCHITECTURE
RDNA 2.0
PROCESS
7 nm
LAUNCH DATE
2021
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_metal
DETAILED SPECIFICATIONS
SPECIFICATION
HD 7970
Pro W6600X
Core Specs
Shading Units
2,048
2,048
0.0%
Shaders
2,048
2,048
0.0%
TMUs
128
128
0.0%
ROPs
32
64
+100.0%
Compute Units
32
32
0.0%
Clocks
Base Clock
—
2068 MHz
Boost Clock
—
2479 MHz
GPU Clock
925 MHz
—
Memory Clock
1375 MHz
5.5 Gbps effective
2000 MHz
16 Gbps effective
Memory
Memory Size
3 GB
8 GB
VRAM (MB)
3,072
8,192
+166.7%
Memory Type
GDDR5
GDDR6
Memory Bus
384 bit
128 bit
Bandwidth
264.0 GB/s
256.0 GB/s
Cache
L1 Cache
16 KB (per CU)
128 KB per Array
L2 Cache
768 KB
2 MB
L3 Cache
—
32 MB
L0 Cache
—
32 KB per WGP
Performance
Pixel Rate
29.60 GPixel/s
158.7 GPixel/s
Texture Rate
118.4 GTexel/s
317.3 GTexel/s
FP32 (TFLOPS)
3.789 TFLOPS
10.15 TFLOPS
FP64 (TFLOPS)
947.2 GFLOPS (1:4)
634.6 GFLOPS (1:16)
FP16 (TFLOPS)
—
20.31 TFLOPS (2:1)
AI/RT
RT Cores
—
32
Power
TDP
250 W
120 W
TDP (W)
250
120
-52.0%
Suggested PSU
600 W
300 W
Power Connectors
1x 6-pin + 1x 8-pin
—
Architecture
Architecture
GCN 1.0
RDNA 2.0
GPU Name
Tahiti
Navi 23
Generation
Southern Islands
(HD 7900)
Radeon Pro Mac
(Navi II Series)
Process Size
28 nm
7 nm
Transistors
4,313 million
11,060 million
Die Size
352 mm²
237 mm²
Foundry
TSMC
TSMC
Density
12.3M / mm²
46.7M / mm²
API Support
DirectX
12 (11_1)
12 Ultimate (12_2)
OpenGL
4.6
4.6
Vulkan
1.2.170
1.4
OpenCL
2.1 (1.2)
2.1
Shader Model
6.5 (5.1)
6.8
Physical
Slot Width
Dual-slot
Dual-slot
Length
275 mm
10.8 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
Apple MPX
Other
Launch Price
549 USD
699 USD
Production
End-of-life
End-of-life
Predecessor
Northern Islands
—
Successor
Sea Islands
—