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 W6400
CORE STATE
Navi 24
VRAM
4 GB
CLOCK SPEED
2321 MHz
TDP
50 W
BUS WIDTH
64 bit
ARCHITECTURE
RDNA 2.0
PROCESS
6 nm
LAUNCH DATE
2022
PERFORMANCE BENCHMARKS
geekbench_opencl
DETAILED SPECIFICATIONS
SPECIFICATION
HD 7970
PRO W6400
Core Specs
Shading Units
2,048
768
-62.5%
Shaders
2,048
768
-62.5%
TMUs
128
48
-62.5%
ROPs
32
32
0.0%
Compute Units
32
12
-62.5%
Clocks
Base Clock
—
2039 MHz
Boost Clock
—
2321 MHz
GPU Clock
925 MHz
—
Memory Clock
1375 MHz
5.5 Gbps effective
2000 MHz
16 Gbps effective
Memory
Memory Size
3 GB
4 GB
VRAM (MB)
3,072
4,096
+33.3%
Memory Type
GDDR5
GDDR6
Memory Bus
384 bit
64 bit
Bandwidth
264.0 GB/s
128.0 GB/s
Cache
L1 Cache
16 KB (per CU)
128 KB per Array
L2 Cache
768 KB
1024 KB
L3 Cache
—
8 MB
L0 Cache
—
32 KB per WGP
Performance
Pixel Rate
29.60 GPixel/s
74.27 GPixel/s
Texture Rate
118.4 GTexel/s
111.4 GTexel/s
FP32 (TFLOPS)
3.789 TFLOPS
3.565 TFLOPS
FP64 (TFLOPS)
947.2 GFLOPS (1:4)
222.8 GFLOPS (1:16)
FP16 (TFLOPS)
—
7.130 TFLOPS (2:1)
AI/RT
RT Cores
—
12
Power
TDP
250 W
50 W
TDP (W)
250
50
-80.0%
Suggested PSU
600 W
250 W
Power Connectors
1x 6-pin + 1x 8-pin
None
Architecture
Architecture
GCN 1.0
RDNA 2.0
GPU Name
Tahiti
Navi 24
Generation
Southern Islands
(HD 7900)
Radeon Pro Navi
(Navi II Series)
Process Size
28 nm
6 nm
Transistors
4,313 million
5,400 million
Die Size
352 mm²
107 mm²
Foundry
TSMC
TSMC
Density
12.3M / mm²
50.5M / 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)
2.2
Shader Model
6.5 (5.1)
6.8
Physical
Slot Width
Dual-slot
Single-slot
Length
275 mm
10.8 inches
—
Height
111 mm
4.4 inches
—
Outputs
1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
2x DisplayPort 1.4a
Bus Interface
PCIe 3.0 x16
PCIe 4.0 x4
Other
Launch Price
549 USD
—
Production
End-of-life
End-of-life
Predecessor
Northern Islands
Radeon Pro Vega
Successor
Sea Islands
—