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
RADEON
Radeon R7 Graphics
CORE STATE
Spectre Lite
VRAM
System Shared
CLOCK SPEED
—
TDP
25 W
BUS WIDTH
System Shared
ARCHITECTURE
GCN 2.0
PROCESS
28 nm
LAUNCH DATE
2014
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
HD 7970
R7 Graphics
Core Specs
Shading Units
2,048
384
-81.3%
Shaders
2,048
384
-81.3%
TMUs
128
24
-81.3%
ROPs
32
8
-75.0%
Compute Units
32
6
-81.3%
Clocks
GPU Clock
925 MHz
720 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
5.760 GPixel/s
Texture Rate
118.4 GTexel/s
17.28 GTexel/s
FP32 (TFLOPS)
3.789 TFLOPS
553.0 GFLOPS
FP64 (TFLOPS)
947.2 GFLOPS (1:4)
34.56 GFLOPS (1:16)
Power
TDP
250 W
25 W
TDP (W)
250
25
-90.0%
Suggested PSU
600 W
—
Power Connectors
1x 6-pin + 1x 8-pin
—
Architecture
Architecture
GCN 1.0
GCN 2.0
GPU Name
Tahiti
Spectre Lite
Generation
Southern Islands
(HD 7900)
GCN 2.0 IGP
(Kaveri)
Process Size
28 nm
28 nm
Transistors
4,313 million
2,410 million
Die Size
352 mm²
245 mm²
Foundry
TSMC
GlobalFoundries
Density
12.3M / mm²
9.8M / mm²
API Support
DirectX
12 (11_1)
12 (12_0)
OpenGL
4.6
4.6
Vulkan
1.2.170
1.2.170
OpenCL
2.1 (1.2)
2.1
Shader Model
6.5 (5.1)
6.5
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
IGP
Other
Launch Price
549 USD
—
Production
End-of-life
End-of-life
Predecessor
Northern Islands
TeraScale 3 IGP
Successor
Sea Islands
GCN 3.0 IGP