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
CMP 40HX
CORE STATE
TU106
VRAM
8 GB
CLOCK SPEED
1650 MHz
TDP
185 W
BUS WIDTH
256 bit
ARCHITECTURE
Turing
PROCESS
12 nm
LAUNCH DATE
2021
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
HD 7970
CMP 40HX
Core Specs
Shading Units
2,048
2,304
+12.5%
Shaders
2,048
2,304
+12.5%
TMUs
128
144
+12.5%
ROPs
32
64
+100.0%
Compute Units
32
—
SM Count
—
36
Clocks
Base Clock
—
1470 MHz
Boost Clock
—
1650 MHz
GPU Clock
925 MHz
—
Memory Clock
1375 MHz
5.5 Gbps effective
1750 MHz
14 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
256 bit
Bandwidth
264.0 GB/s
448.0 GB/s
Cache
L1 Cache
16 KB (per CU)
64 KB (per SM)
L2 Cache
768 KB
4 MB
Performance
Pixel Rate
29.60 GPixel/s
105.6 GPixel/s
Texture Rate
118.4 GTexel/s
237.6 GTexel/s
FP32 (TFLOPS)
3.789 TFLOPS
7.603 TFLOPS
FP64 (TFLOPS)
947.2 GFLOPS (1:4)
237.6 GFLOPS (1:32)
FP16 (TFLOPS)
—
15.21 TFLOPS (2:1)
AI/RT
RT Cores
—
36
Tensor Cores
—
288
Power
TDP
250 W
185 W
TDP (W)
250
185
-26.0%
Suggested PSU
600 W
450 W
Power Connectors
1x 6-pin + 1x 8-pin
1x 8-pin
Architecture
Architecture
GCN 1.0
Turing
GPU Name
Tahiti
TU106
Generation
Southern Islands
(HD 7900)
Mining GPUs
Process Size
28 nm
12 nm
Transistors
4,313 million
10,800 million
Die Size
352 mm²
445 mm²
Foundry
TSMC
TSMC
Density
12.3M / mm²
24.3M / 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)
3.0
CUDA
—
7.5
Shader Model
6.5 (5.1)
6.8
Physical
Slot Width
Dual-slot
Dual-slot
Length
275 mm
10.8 inches
229 mm
9 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 1.0 x4
Other
Launch Price
549 USD
699 USD
Production
End-of-life
End-of-life
Predecessor
Northern Islands
—
Successor
Sea Islands
—