GPU Comparison
RADEON
AMD Radeon HD 7950
CORE STATE
Tahiti
VRAM
3 GB
CLOCK SPEED
—
TDP
200 W
BUS WIDTH
384 bit
ARCHITECTURE
GCN 1.0
PROCESS
28 nm
LAUNCH DATE
2012
VS
RADEON
Radeon Pro Vega II
CORE STATE
Vega 20
VRAM
32 GB
CLOCK SPEED
1720 MHz
TDP
475 W
BUS WIDTH
4096 bit
ARCHITECTURE
GCN 5.1
PROCESS
7 nm
LAUNCH DATE
2019
PERFORMANCE BENCHMARKS
geekbench_metal
geekbench_opencl
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
HD 7950
Pro Vega II
Core Specs
Shading Units
1,792
4,096
+128.6%
Shaders
1,792
4,096
+128.6%
TMUs
112
256
+128.6%
ROPs
32
64
+100.0%
Compute Units
28
64
+128.6%
Clocks
Base Clock
—
1574 MHz
Boost Clock
—
1720 MHz
GPU Clock
800 MHz
—
Memory Clock
1250 MHz
5 Gbps effective
806 MHz
1612 Mbps effective
Memory
Memory Size
3 GB
32 GB
VRAM (MB)
3,072
32,768
+966.7%
Memory Type
GDDR5
HBM2
Memory Bus
384 bit
4096 bit
Bandwidth
240.0 GB/s
825.3 GB/s
Cache
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
768 KB
4 MB
Performance
Pixel Rate
25.60 GPixel/s
110.1 GPixel/s
Texture Rate
89.60 GTexel/s
440.3 GTexel/s
FP32 (TFLOPS)
2.867 TFLOPS
14.09 TFLOPS
FP64 (TFLOPS)
716.8 GFLOPS (1:4)
7.045 TFLOPS (1:2)
FP16 (TFLOPS)
—
28.18 TFLOPS (2:1)
Power
TDP
200 W
475 W
TDP (W)
200
475
+137.5%
Suggested PSU
550 W
850 W
Power Connectors
2x 6-pin
—
Architecture
Architecture
GCN 1.0
GCN 5.1
GPU Name
Tahiti
Vega 20
Generation
Southern Islands
(HD 7900)
Radeon Pro Mac
(Vega Series)
Process Size
28 nm
7 nm
Transistors
4,313 million
13,230 million
Die Size
352 mm²
331 mm²
Foundry
TSMC
TSMC
Density
12.3M / mm²
40.0M / 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
Quad-slot
Length
278 mm
10.9 inches
—
Height
111 mm
4.4 inches
—
Outputs
1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
1x HDMI 2.0b4x Thunderbolt
Bus Interface
PCIe 3.0 x16
Apple MPX
Other
Launch Price
449 USD
2,199 USD
Production
End-of-life
End-of-life
Predecessor
Northern Islands
—
Successor
Sea Islands
—