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
GPU
HD Graphics P4600
CORE STATE
Haswell GT2
VRAM
System Shared
CLOCK SPEED
1200 MHz
TDP
84 W
BUS WIDTH
System Shared
ARCHITECTURE
Generation 7.5
PROCESS
22 nm
LAUNCH DATE
2013
PERFORMANCE BENCHMARKS
geekbench_opencl
DETAILED SPECIFICATIONS
SPECIFICATION
HD 7970
HD Graphics P4600
Core Specs
Shading Units
2,048
160
-92.2%
Shaders
2,048
160
-92.2%
TMUs
128
20
-84.4%
ROPs
32
2
-93.8%
Compute Units
32
—
Execution Units
—
20
Clocks
Base Clock
—
350 MHz
Boost Clock
—
1200 MHz
GPU Clock
925 MHz
—
Memory Clock
1375 MHz
5.5 Gbps effective
System Shared
Memory
Memory Size
3 GB
System Shared
VRAM (MB)
3,072
—
Memory Type
GDDR5
System Shared
Memory Bus
384 bit
System Shared
Bandwidth
264.0 GB/s
System Dependent
Cache
L1 Cache
16 KB (per CU)
—
L2 Cache
768 KB
—
Performance
Pixel Rate
29.60 GPixel/s
2.400 GPixel/s
Texture Rate
118.4 GTexel/s
24.00 GTexel/s
FP32 (TFLOPS)
3.789 TFLOPS
384.0 GFLOPS
FP64 (TFLOPS)
947.2 GFLOPS (1:4)
96.00 GFLOPS (1:4)
Power
TDP
250 W
84 W
TDP (W)
250
84
-66.4%
Suggested PSU
600 W
—
Power Connectors
1x 6-pin + 1x 8-pin
—
Architecture
Architecture
GCN 1.0
Generation 7.5
GPU Name
Tahiti
Haswell GT2
Generation
Southern Islands
(HD 7900)
HD Graphics-W
(Haswell)
Process Size
28 nm
22 nm
Transistors
4,313 million
—
Die Size
352 mm²
—
Foundry
TSMC
Intel
Density
12.3M / mm²
—
API Support
DirectX
12 (11_1)
12 (11_1)
OpenGL
4.6
4.3
Vulkan
1.2.170
1.0
OpenCL
2.1 (1.2)
1.2
Shader Model
6.5 (5.1)
5.1
Physical
Slot Width
Dual-slot
IGP
Length
275 mm
10.8 inches
—
Height
111 mm
4.4 inches
—
Outputs
1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
Motherboard Dependent
Bus Interface
PCIe 3.0 x16
Ring Bus
Other
Launch Price
549 USD
—
Production
End-of-life
End-of-life
Predecessor
Northern Islands
—
Successor
Sea Islands
—