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 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
PERFORMANCE BENCHMARKS
geekbench_metal
geekbench_opencl
DETAILED SPECIFICATIONS
SPECIFICATION
HD 7950
HD 7970
Core Specs
Shading Units
1,792
2,048
+14.3%
Shaders
1,792
2,048
+14.3%
TMUs
112
128
+14.3%
ROPs
32
32
0.0%
Compute Units
28
32
+14.3%
Clocks
GPU Clock
800 MHz
925 MHz
Memory Clock
1250 MHz
5 Gbps effective
1375 MHz
5.5 Gbps effective
Memory
Memory Size
3 GB
3 GB
VRAM (MB)
3,072
3,072
0.0%
Memory Type
GDDR5
GDDR5
Memory Bus
384 bit
384 bit
Bandwidth
240.0 GB/s
264.0 GB/s
Cache
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
768 KB
768 KB
Performance
Pixel Rate
25.60 GPixel/s
29.60 GPixel/s
Texture Rate
89.60 GTexel/s
118.4 GTexel/s
FP32 (TFLOPS)
2.867 TFLOPS
3.789 TFLOPS
FP64 (TFLOPS)
716.8 GFLOPS (1:4)
947.2 GFLOPS (1:4)
Power
TDP
200 W
250 W
TDP (W)
200
250
+25.0%
Suggested PSU
550 W
600 W
Power Connectors
2x 6-pin
1x 6-pin + 1x 8-pin
Architecture
Architecture
GCN 1.0
GCN 1.0
GPU Name
Tahiti
Tahiti
Generation
Southern Islands
(HD 7900)
Southern Islands
(HD 7900)
Process Size
28 nm
28 nm
Transistors
4,313 million
4,313 million
Die Size
352 mm²
352 mm²
Foundry
TSMC
TSMC
Density
12.3M / mm²
12.3M / mm²
API Support
DirectX
12 (11_1)
12 (11_1)
OpenGL
4.6
4.6
Vulkan
1.2.170
1.2.170
OpenCL
2.1 (1.2)
2.1 (1.2)
Shader Model
6.5 (5.1)
6.5 (5.1)
Physical
Slot Width
Dual-slot
Dual-slot
Length
278 mm
10.9 inches
275 mm
10.8 inches
Height
111 mm
4.4 inches
111 mm
4.4 inches
Outputs
1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Other
Launch Price
449 USD
549 USD
Production
End-of-life
End-of-life
Predecessor
Northern Islands
Northern Islands
Successor
Sea Islands
Sea Islands