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
GEFORCE
P102-100
CORE STATE
GP102
VRAM
5 GB
CLOCK SPEED
1683 MHz
TDP
250 W
BUS WIDTH
320 bit
ARCHITECTURE
Pascal
PROCESS
16 nm
LAUNCH DATE
2018
PERFORMANCE BENCHMARKS
geekbench_metal
geekbench_opencl
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
HD 7950
P102-100
Core Specs
Shading Units
1,792
3,200
+78.6%
Shaders
1,792
3,200
+78.6%
TMUs
112
200
+78.6%
ROPs
32
80
+150.0%
Compute Units
28
—
SM Count
—
25
Clocks
Base Clock
—
1582 MHz
Boost Clock
—
1683 MHz
GPU Clock
800 MHz
—
Memory Clock
1250 MHz
5 Gbps effective
1376 MHz
11 Gbps effective
Memory
Memory Size
3 GB
5 GB
VRAM (MB)
3,072
5,120
+66.7%
Memory Type
GDDR5
GDDR5X
Memory Bus
384 bit
320 bit
Bandwidth
240.0 GB/s
440.3 GB/s
Cache
L1 Cache
16 KB (per CU)
48 KB (per SM)
L2 Cache
768 KB
2.5 MB
Performance
Pixel Rate
25.60 GPixel/s
134.6 GPixel/s
Texture Rate
89.60 GTexel/s
336.6 GTexel/s
FP32 (TFLOPS)
2.867 TFLOPS
10.77 TFLOPS
FP64 (TFLOPS)
716.8 GFLOPS (1:4)
336.6 GFLOPS (1:32)
FP16 (TFLOPS)
—
168.3 GFLOPS (1:64)
Power
TDP
200 W
250 W
TDP (W)
200
250
+25.0%
Suggested PSU
550 W
600 W
Power Connectors
2x 6-pin
2x 8-pin
Architecture
Architecture
GCN 1.0
Pascal
GPU Name
Tahiti
GP102
Generation
Southern Islands
(HD 7900)
Mining GPUs
Process Size
28 nm
16 nm
Transistors
4,313 million
11,800 million
Die Size
352 mm²
471 mm²
Foundry
TSMC
TSMC
Density
12.3M / mm²
25.1M / mm²
API Support
DirectX
12 (11_1)
12 (12_1)
OpenGL
4.6
4.6
Vulkan
1.2.170
1.4
OpenCL
2.1 (1.2)
3.0
CUDA
—
6.1
Shader Model
6.5 (5.1)
6.8
Physical
Slot Width
Dual-slot
Dual-slot
Length
278 mm
10.9 inches
267 mm
10.5 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
PCIe 1.0 x4
Other
Launch Price
449 USD
—
Production
End-of-life
End-of-life
Predecessor
Northern Islands
—
Successor
Sea Islands
—