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GPU
ATI

Radeon HD 4870 Mac Edition

Processore grafico

Memoria video
512 MB*
Bus di memoria
256 bit*
Banda di memoria nominale
108,80 GB/s*

Non sono ancora disponibili benchmark associati a questa scheda.

Elaborazione e piattaforma

Architettura
TeraScale*
Nodo produttivo
55 nm*
Frequenza base GPU
750 MHz*

Memoria e archiviazione

Memoria video
512 MB*
Tipo memoria video
GDDR5*
Bus di memoria
256 bit*
Banda di memoria nominale
108,80 GB/s*

Configurazione di sistema

Specifiche dettagliate

Specifiche 1 · 54 campi
Brand
ATI*
Top BUS WIDTH
256* bit
Graphics Processor GPU Name
RV770*
Graphics Processor Architecture
TeraScale*
Graphics Processor Process Size
55* nm
Graphics Processor Transistors
956 million*
Graphics Processor Die Size
256* mm²
Graphics Card Release Date
Jan 6th, 2009*
Graphics Card Generation
Radeon R700 (HD 4800)*
Graphics Card Successor
Evergreen*
Graphics Card Production
End-of-life*
Name
Radeon HD 4870 Mac Edition*
Graphics Card Bus Interface
PCIe 2.0 x16*
Clock Speeds GPU Clock
750* MHz
Clock Speeds Memory Clock
850 MHz 3.4 Gbps effective*
Memory Memory Size
512* MB
Memory Memory Type
GDDR5*
Memory Memory Bus
256* bit
Memory Bandwidth
108,8* GB/s
Render Config TMUs
40*
Top GRAPHICS PROCESSOR
RV770*
Render Config ROPs
16*
Theoretical Performance Pixel Rate
12.00 GPixel/s
Theoretical Performance Texture Rate
30.00 GTexel/s
Board Design Slot Width
Dual-slot*
Board Design TDP
150* W
Board Design Suggested PSU
450* W
Board Design Outputs
1x DVI 1x mini-DisplayPort 1.0*
Board Design Board Number
B771*
Graphics Features DirectX
10.1 (10_1)*
Graphics Features OpenGL
3,3*
Graphics Features OpenCL
1,1*
source file
ati2009.json*
Graphics Processor Foundry
TSMC*
Graphics Card Predecessor
Radeon R600*
Recommended Resolutions
Good:1280x720 | Low FPS:1366x768 | Unplayable:1600x900*
Board Design Length
250 mm 9.8 inches*
Graphics Processor GPU Variant
RV770 XT Mac (215-0669080)*
Board Design Power Connectors
2x 6-pin*
Graphics Processor Density
3.7M / mm²*
Graphics Card Reviews
135 in our database*
Top TMUS
40*
Graphics Processor Chip Package
HFCBGA-1492*
Top ROPS
16*
Graphics Features Shader Model
4.1*
Top CORES
800*
Render Config Shading Units
800*
Render Config Compute Units
10*
Render Config L2 Cache
256* KB
Top MEMORY SIZE
512* MB
Theoretical Performance FP32 (float)
1,200.0 GFLOPS
Theoretical Performance FP64 (double)
240.0 GFLOPS (1:5)
Render Config L1 Cache
16 KB (per CU)*
Top MEMORY TYPE
GDDR5*
Specifiche 2 · 27 campi
manufacturer
ATI*
manufacturer
ATI*
rop
24*
rop
16*
igp
No*
igp
No*
bus
PCIe 2.0 x16*
bus
PCIe 3.0 x16*
memType
GDDR5*
memType
GDDR5*
gpuChip
RV770*
gpuChip
GK104*
productName
Radeon HD 4870 Mac Edition*
productName
Radeon HD 4870 Mac Edition*
releaseYear
2.009*
releaseYear
2.009*
memSize
0,512*
memSize
0,512*
memBusWidth
256*
gpuClock
601*
gpuClock
750*
memClock
850*
memClock
700*
unifiedShader
960*
unifiedShader
800*
tmu
80*
tmu
40*

* Dati provvisori