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
GEFORCE
GeForce GTX 580M
CORE STATE
GF114
VRAM
2 GB
CLOCK SPEED
—
TDP
100 W
BUS WIDTH
256 bit
ARCHITECTURE
Fermi 2.0
PROCESS
40 nm
LAUNCH DATE
2011
PERFORMANCE BENCHMARKS
geekbench_opencl
DETAILED SPECIFICATIONS
SPECIFICATION
HD 7970
GTX 580M
Core Specs
Shading Units
2,048
384
-81.3%
Shaders
2,048
384
-81.3%
TMUs
128
64
-50.0%
ROPs
32
32
0.0%
Compute Units
32
—
SM Count
—
8
Clocks
GPU Clock
925 MHz
620 MHz
Shader Clock
—
1240 MHz
Memory Clock
1375 MHz
5.5 Gbps effective
750 MHz
3 Gbps effective
Memory
Memory Size
3 GB
2 GB
VRAM (MB)
3,072
2,048
-33.3%
Memory Type
GDDR5
GDDR5
Memory Bus
384 bit
256 bit
Bandwidth
264.0 GB/s
96.00 GB/s
Cache
L1 Cache
16 KB (per CU)
64 KB (per SM)
L2 Cache
768 KB
512 KB
Performance
Pixel Rate
29.60 GPixel/s
9.920 GPixel/s
Texture Rate
118.4 GTexel/s
39.68 GTexel/s
FP32 (TFLOPS)
3.789 TFLOPS
952.3 GFLOPS
FP64 (TFLOPS)
947.2 GFLOPS (1:4)
79.36 GFLOPS (1:12)
Power
TDP
250 W
100 W
TDP (W)
250
100
-60.0%
Suggested PSU
600 W
—
Power Connectors
1x 6-pin + 1x 8-pin
None
Architecture
Architecture
GCN 1.0
Fermi 2.0
GPU Name
Tahiti
GF114
Generation
Southern Islands
(HD 7900)
GeForce 500M
Process Size
28 nm
40 nm
Transistors
4,313 million
1,950 million
Die Size
352 mm²
332 mm²
Foundry
TSMC
TSMC
Density
12.3M / mm²
5.9M / mm²
API Support
DirectX
12 (11_1)
12 (11_0)
OpenGL
4.6
4.6
Vulkan
1.2.170
—
OpenCL
2.1 (1.2)
1.1
CUDA
—
2.1
Shader Model
6.5 (5.1)
5.1
Physical
Slot Width
Dual-slot
MXM Module
Length
275 mm
10.8 inches
—
Height
111 mm
4.4 inches
—
Outputs
1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
Portable Device Dependent
Bus Interface
PCIe 3.0 x16
MXM-B (3.0)
Other
Launch Price
549 USD
—
Production
End-of-life
End-of-life
Predecessor
Northern Islands
GeForce 400M
Successor
Sea Islands
GeForce 600M